Hioki Hioki CT6873 Brochure

CURRENT SENSOR Series

CURRENT PROBE Series

5 Commonwealth Ave
Woburn, MA 01801
Phone [phone]

Free 1-800-517-8431

Toll

Visit us at www.TestEquipmentDepot.com

Application-optimized
Current Sensors and Current Probes

2

Use Cases

Application-optimized current sensors and current probes

Hioki offers lineup of current sensors and current probes to accommodate current measurement requirements in a variety

of applications, from development and evaluation in advanced elds to quality control of commercial power supplies.

Evaluating power conversion efciency in EVs

Evaluate vehicles’ overall power conversion efciency in order to develop

automobiles that run further with less energy.

CT6904A, CT687xA series + PW8001

Evaluating power devices in
power supply circuits

Observe the inputs and outputs of the current waveform in order to evaluate
whether power devices are providing the required level of performance.

CT67xx series, 327x series + MR6000

Evaluating the fuel (energy) efciency of
nished vehicles

Measure fuel efciency based on the international standard (WLTP) in
order to evaluate the fuel efciency of nished vehicles.

CT684xA series + PW3390

Evaluating systems used to control accessory
components in automobiles

Observe current waveforms of various magnitudes that uctuate

depending on the state of the device in question, including dark current,
inrush current, and drive current, in order to evaluate accessory control.

CT67xx series, 327x series + MR6000

Maintaining power quality

Continuously monitor power quality and analyze the causes of power
supply issues in order to maintain stable power quality.

CT7xxx series, CT9667-0x series + PQ3198, PQ3100

Assessing the power consumption of
equipment and systems

Assess the power consumption of devices and systems in order to pursue

energy-saving activities and achieve the goals of the UN’s Sustainable
Development Goals (SDGs).

CT7xxx series, CT9667-0x series + PW3365

Use Cases

Operation current [A]

Operation frequency [Hz]

10 k

SiC

Applications by operating current and operating frequency

Power transmission, energy storage

Solar power, wind power generation

1 k

Bullet train

Airplane

High Power

3

100

Production robot

EV, PHEV, FCV

GaN

High Speed

10

1

100 m

10 m

1 m

Si

Medium
Power & Speed

100 μ

DC 10 k 100 k 1 M 10 M 100 M 1 G

Home appliances, PC

Server, base station

Smartphone

High-accuracy

measurement

Waveform

observation

Grid power

quality control

pass-through types

clamp types

High-sensitivity

observation

Observation of

minuscule currents

Observation of

large currents

Measurement of

load currents

Measurement of

large currents

Measurement of

leakage currents

- EV inverter systems R&D

- Assessment of reactor and transformer losses

- WLTP-compliant fuel economy (electricity cost) performance testing

- Evaluation of automotive accessory control

- Evaluation of power components in power supply circuits

- Evaluation of automotive accessory control

- Development and evaluation of power-saving devices such as wearables

- Fluctuations in uctuation of load currents of large industrial equipment

- Measurement of inrush currents owing when starting an engine

- Assessment of power consumption

- Periodic inspection of power supply equipment and

monitoring of power quality

- Detection of intermittent electrical leaks

- Search for the locations of electrical leaks

4

Models by Application

Current Sensors
Current Probes
Lineup

Hioki’s first current sensor was a

magnetic current sensor developed

in-house in 1971. We’ve pursued

sensing technologies over the past

50 years, providing a variety of

current sensors for the full range of

measurement applications.

High-accuracy measurement

These models, rated for 20 A to 2000 A, measure currents
in a frequency band from DC to 10 MHz with a high degree
of accuracy. They’re used in applications that require high

measurement accuracy, for example evaluation of inverter
equipment and evaluation of loss in reactors and transformers.

Pass-through types

Pass-through sensors deliver the ultimate level of accuracy and stability.
With a broadband measurement at up to 10 MHz and measurement of
large currents of up to 2000 A, they’re used in state-of-the-art research and

development.

EV inverter system R&D

Evaluation of reactor and transformer losses

Clamp types

Clamp-type sensors are quick and easy to connect, and used for testing

nished products, an application where it is difcult to cut wires. Capable
of functioning at temperatures from -40°C to 85°C, they’re used in high-

temperature environments such as engine compartments.

WLTP-compliant fuel economy

(electricity cost) performance testing

Direct-wired types

Directly wired current sensors deliver world-class accuracy and frequency

band characteristics (50 A model) by Hioki’s proprietary DCCT (Direct
Connection Current Transducer) method

Evaluation of reactor and transformer losses

Evaluation of inverters in energy-saving household appliances

Models by Application

5

Waveform observation

These models, rated from 0.5 A to 500 A, measure current
waveforms in a frequency band of DC to 120 MHz. They’re
used to analyze uctuations during operation of various types of

equipment operation, including standby current, inrush current,
load current, and control current.

High-sensitivity observation

These models can measure current waveforms that range in magnitude
from miniscule to large. With the high-sensitivity ranges and an output rate
of 10 V/A, minuscule currents that uctuate at high speeds can be clearly

observed.

Evaluation of automotive accessory control

Evaluation of power devices in power supply circuits

Grid power quality control

These models are engineered primarily to measure current at
commercial frequencies (50/60 Hz). They’re used in applications

such as power quality checks and power consumption

assessments. We offer models with specications suitable for a

range of measurement locations, from leakage currents to large
currents.

Measurement of load current

These sensors are primarily designed to measure commercial power
supplies. They’re used to monitor and analyze power quality and to

measure power consumption.

Assessment of power consumption

Periodic inspection of power supply equipment and
monitoring of power quality

Observation of minuscule currents

These models can measure miniscule current waveforms, including

control currents flowing in control circuits and fluctuations in the current
consumption of compact electronic devices that operate at small currents.

Evaluation of automotive accessory control

Development and evaluation of power-saving
devices such as wearables

Observation of large currents

These models can measure large current waveforms, including uctuations

in load current from the operation of industrial equipment and inrush
currents when power supplies are activated.

Measurement of large currents

These sensors can measure large currents of up to 6000 A. Their slim,
exible form make them easy to insert into narrow gaps and between wires.

Assessment of power consumption

Periodic inspection of power supply equipment and
monitoring of power quality

Measurement of leakage currents

These sensors are used to measure minuscule currents such as leakage

currents.

Fluctuations of load currents of large industrial equipment

Measurement of inrush currents owing at engine start

Detection of intermittent electrical leaks

Search for the locations of electrical leaks

6

Models by Application

High-accuracy measurement

Pass-through types

50 A

200 A

500 A

φ24 mm (0.94 in.)

50 A

DC to 1 MHz

CT6862-05

φ24 mm (0.94 in.)

200 A

DC to 500 kHz

CT6863-05

φ36 mm (1.42 in.)

φ24 mm (0.94 in.)

50 A

DC to 10 MHz

CT6872, CT6872-01

φ24 mm (0.94 in.)

200 A

DC to 10 MHz

CT6873, CT6873-01

φ36 mm (1.42 in.)

NEW

NEW

φ32 mm (1.26 in.)

Output terminals:

ME15W

φ32 mm (1.26 in.)

Waveform observation

Minuscule current waveforms can be
observed more clearly by generating

output at 10 V/A

Output rate: 1 V/A

Output rate: 10 V/A

Model

CT6710
CT6711

CT6700
CT6701

3273-50

3276

3274 150 A 0.01 V/A

3275 500 A 0.01 V/A

Measurement

range

0.5 A
5 A 1 V/A

30 A 0.1 V/A

5 A 1 V/A

30 A 0.1 V/A

Output terminals:

Output rate

High-sensitivity observation

BNC

10 V/A

800 A

1000 A
2000 A

Clamp types

20 A
200 A

500 A

DC to 2 MHz

CT6875A

φ32 mm (1.26 in.)

800 A

DC to 4 MHz

CT6904A-2

φ36 mm (1.42 in.)

1000 A

DC to 1.5 MHz

CT6876A

φ20 mm (0.79 in.)

500 A

DC to 1.5 MHz

CT6875A-1

φ32 mm (1.26 in.)

800 A

DC to 2 MHz

CT6904A-3

φ36 mm (1.42 in.)

1000 A

DC to 1.2 MHz

CT6876A-1

φ20 mm (0.79 in.)

500 A

DC to 4 MHz

CT6904A

φ80 mm (3.15 in.)

2000 A

DC to 1 MHz

DC to 2 MHz

CT6904A-1

CT6877A, CT6877A-1

φ46 mm (1.81 in.)

500 A

0.5 A
5 A

φ5 mm (0.20 in.)

φ5 mm (0.20 in.)

30 A

0.5 A, 5 A, 30 A

DC to 50 MHz

CT6710

0.5 A, 5 A, 30 A

DC to 120 MHz

CT6711

Observation of minuscule currents

5 A

φ5 mm (0.20 in.)

5 A

DC to 50 MHz

CT6700

φ5 mm (0.20 in.)

5 A

DC to 120 MHz

CT6701

Observation of large currents

30 A

φ5 mm (0.20 in.)

φ5 mm (0.20 in.)

500 A
1000 A

20 A

DC to 2 MHz

CT6841A

φ20 mm (0.79 in.)

500 A

DC to 500 kHz

CT6844A

200 A

DC to 700 kHz

CT6843A

φ50 mm (1.97 in.)

500 A

DC to 200 kHz

CT6845A

20 A/200 A

1 Hz to 100 kHz

9272-05

φ50 mm (1.97 in.)

1000 A

DC to 100 kHz

CT6846A

150 A
500 A

30 A

DC to 50 MHz

3273-50

φ20 mm (0.79 in.)

150 A

DC to 10 MHz

3274

30 A

DC to 100 MHz

3276

φ20 mm (0.79 in.)

500 A

DC to 2 MHz

3275

Models by Application

7

Grid power quality control Grid power quality control

Measurement of load current

60 A
100 A

100 A

600 A

φ15 mm (0.59 in.)

60 A

40 Hz to 20 kHz

CT7126

φ33 mm (1.30 in.)

100 A

DC to 5 kHz

CT7731

φ33 mm (1.30 in.)

φ15 mm (0.59 in.)

100 A

40 Hz to 20 kHz

CT7131

φ33 mm (1.30 in.)

100 A

DC to 10 kHz

CT7631

φ33 mm (1.30 in.)

Output terminals:

PL14

φ46 mm (1.81 in.)

Measurement of load current

5 A
50 A

100 A

500 A
1000 A

φ15 mm (0.59 in.)

5 A

40 Hz to 5 kHz

9694

φ15 mm (0.59 in.)

100 A

40 Hz to 5 kHz

9660

φ46 mm (1.81 in.)

φ15 mm (0.59 in.)

40 Hz to 5 kHz

9695-02*

φ15 mm (0.59 in.)

40 Hz to 5 kHz

9695-03*

φ46 mm (1.81 in.)

50 A

100 A

1

1

Output terminals:

BNC*

φ46 mm (1.81 in.)

1

2000 A

600 A

DC to 5 kHz

CT7736

φ55 mm (2.17 in.)

2000 A

DC to 5 kHz

CT7742

600 A

DC to 10 kHz

CT7636

φ55 mm (2.17 in.)

2000 A

DC to 10 kHz

CT7642

Measurement of large currents

6000 A

φ100 mm (3.94 in.)

6000 A

10 Hz to 50 kHz

CT7044

φ180 mm (7.09 in.)

6000 A

10 Hz to 50 kHz

CT7045

600 A

40 Hz to 20 kHz

CT7136

φ254 mm (10.0 in.)

6000 A

10 Hz to 50 kHz

CT7046

2

10 A to 500 A*

40 Hz to 1 kHz

9010-50

φ46 mm (1.81 in.)

500 A

40 Hz to 1 kHz

CT6500

*1: The 9695-02 and 9695-03 use an M3 terminal block for their

output terminals. Optional Connection Cable 9219 is required.
*2: Range-switched (10, 20, 50, 100, 200, 500 A AC )
*3: Range-switched (20, 50, 100, 200, 500, 1000 A AC )

10 A to 500 A*

40 Hz to 3 kHz

9018-50

φ46 mm (1.81 in.)

500 A

40 Hz to 5 kHz

9661

2

Measurement of large currents

500 A
5000 A

φ100 mm (3.94 in.)

500 A, 5000 A

10 Hz to 20 kHz

CT9667-01

φ180 mm (7.09 in.)

500 A, 5000 A

10 Hz to 20 kHz

CT9667-02

20 A to 1000 A*

40 Hz to 1 kHz

9132-50

φ55 mm (2.17 in.)

1000 A

40 Hz to 5 kHz

9669

φ254 mm (10.0 in.)

500 A, 5000 A

10 Hz to 20 kHz

CT9667-03

3

Measurement of leakage current

6 A

φ40 mm (1.57 in.)

6 A

40 Hz to 5 kHz

CT7116

Measurement of leakage current

10 A

φ40 mm (1.57 in.)

10 A

40 Hz to 5 kHz

9657-10

φ30 mm (1.18 in.)

10 A

40 Hz to 5 kHz

9675

8

Specications

High-accuracy measurement

Pass-through types

Model Appearance

CT6862-05

CT6872

CT6872-01

CT6863-05

CT6873

CT6873-01

CT6875A

CT6875A-1

CT6904A

Rated

primary

current

50 Arms

50 Arms

50 Arms

200 Arms

200 Arms

200 Arms

500 Arms

500 Arms

500 Arms

Maximum

peak current

±141 A

peak

±200 A

peak

±200 A

peak

±565 A

peak

±350 A
peak*

±350 A
peak*

±1500 A

peak*

±1500 A

peak*

±1000 A

peak*

Output terminals: ME15W

Withstand

voltage*

Output

2

voltage

Frequency

range

Linearity

error

Offset

error

7.4 kV AC 40 mV/A DC to 1 MHz - -

7.4 kV AC 40 mV/A DC to 10 MHz ±2 ppm ±5 ppm

7.4 kV AC 40 mV/A DC to 10 MHz ±2 ppm ±5 ppm

7.4 kV AC 10 mV/A DC to 500 kHz - - -

7.4 kV AC 10 mV/A DC to 10 MHz ±2 ppm ±5 ppm

1

7.4 kV AC 10 mV/A DC to 10 MHz ±2 ppm ±5 ppm

1

7.4 kV AC 4 mV/A DC to 2 MHz ±5 ppm ±5 ppm

1

7.4 kV AC 4 mV/A DC to 1.5 MHz ±5 ppm ±5 ppm

1

7.4 kV AC 4 mV/A DC to 4 MHz ±5 ppm ±10 ppm

1

Amplitude errors

-

DC: 7 ppm
10 Hz to 100 Hz: 0.005%
100 Hz to 1 kHz: 0.01%
1 kHz to 50 kHz: 0.1%
50 kHz to 100 kHz: 0.3%
100 kHz to 300 kHz: 1%
300 kHz to 1 MHz: 3%

DC: ±7 ppm
10 Hz to 500 Hz: ±0.005%
500 Hz to 3 kHz: ±0.01%
3 kHz to 30 kHz: ±0.1%
30 kHz to 100 kHz: ±0.4%
100 kHz to 400 kHz: ±1%
400 kHz to 1 MHz: ±3%

DC: ±10 ppm
10 Hz to 100 Hz: ±0.005%
100 Hz to 1 kHz: ±0.02%
1 kHz to 20 kHz: ±0.08%
20 kHz to 100 kHz: ±0.5%
100 kHz to 300 kHz: ±1%
300 kHz to 1 MHz: ±5%

-

CT6904A-1

CT6904A-2

CT6904A-3

CT6876A

CT6876A-1

CT6877A

CT6877A-1

Clamp types

9272-05

CT6841A

CT6843A

CT6844A

500 Arms

800 Arms

800 Arms

1000 Arms

1000 Arms

2000 Arms

2000 Arms

20 Arms,

200 Arms

20 Arms

200 Arms

500 Arms

±1000 A

1

peak*

±1200 A

1

peak*

±1200 A

1

peak*

±1800 A

1

peak*

±1800 A

1

peak*

±3200 A

1

peak*

±3200 A

1

peak*

±71 Apeak,

±430 Apeak

±60 A

1

peak*

±600 A

1

peak*

±800 A

1

peak*

7.4 kV AC 4 mV/A DC to 2 MHz ±5 ppm ±10 ppm

7.4 kV AC 2 mV/A DC to 4 MHz ±12.5 ppm ±10 ppm

7.4 kV AC 2 mV/A DC to 2 MHz ±12.5 ppm ±10 ppm

DC: ±10 ppm

7.4 kV AC 2 mV/A DC to 1.5 MHz ±5 ppm ±5 ppm

7.4 kV AC 2 mV/A DC to 1.2 MHz ±5 ppm ±5 ppm

7.4 kV AC 1 mV/A DC to 1 MHz ±10 ppm ±5 ppm

7.4 kV AC 1 mV/A DC to 1 MHz ±10 ppm ±5 ppm

5.4 kV AC

100 mV/A,

10 mV/A

1 Hz to 100 kHz - - -

10 Hz to 100 Hz: ±0.005%
100 Hz to 1 kHz: ±0.03%
1 kHz to 10 kHz: ±0.2%
10 kHz to 100 kHz: ±1%
100 kHz to 300 kHz: ±3%
300 kHz to 1 MHz: ±15%

DC: ±15 ppm
10 Hz to 100 Hz: ±0.01%
100 Hz to 1 kHz: ±0.04%
1 kHz to 10 kHz: ±0.25%
10 kHz to 100 kHz: ±1%
100 kHz to 300 kHz: ±2%
300 kHz to 700 kHz: ±10%

4.26 kV AC 100 mV/A DC to 2 MHz ±20 ppm - -

4.26 kV AC 10 mV/A DC to 700 kHz ±20 ppm - -

4.26 kV AC 4 mV/A DC to 500 kHz ±20 ppm - -

-

-

-

CT6845A

CT6846A

Direct-wired types

PW9100A-3

PW9100A-4

500 Arms

1000 Arms

50 Arms

50 Arms

±1500 A

peak*

±1900 A

peak*

±200 A
peak*

±200 A
peak*

4.26 kV AC 4 mV/A DC to 200 kHz ±20 ppm - -

1

4.26 kV AC 2 mV/A DC to 100 kHz ±20 ppm - -

1

5.4 kV AC 40 mV/A DC to 3.5 MHz - - -

1

5.4 kV AC 40 mV/A DC to 3.5 MHz - - -

1

*1: Within 20 ms and 40°C (104°F) or less *2: Sensed current of 1 mA, 50/60 Hz, 1 min

Specications

9

High-accuracy measurement

pass-through types

Model

CT6862-05

CT6872

CT6872-01

CT6863-05

CT6873

CT6873-01

CT6875A

CT6875A-1

CT6904A

Amplitude accuracy

DC 50/60 Hz

±0.05% rdg.

±0.01% f.s.

±0.03% rdg.
±0.002 % f.s.

±0.03% rdg.
±0.002% f.s.

±0.05% rdg.

±0.01% f.s.

±0.03% rdg.
±0.002% f.s.

±0.03% rdg.
±0.002% f.s.

0.04% rdg.

±0.008% f.s.

0.04% rdg.

±0.008% f.s.

±0.025% rdg.

±0.007% f.s.

±0.05% rdg.

±0.01% f.s.

±0.03% rdg.
±0.007% f.s.

±0.03% rdg.
±0.007% f.s.

±0.05% rdg.

±0.01% f.s.

±0.03% rdg.
±0.007% f.s.

±0.03% rdg.
±0.007% f.s.

0.04% rdg.

±0.008% f.s.

0.04% rdg.

±0.008% f.s.

±0.02% rdg.
±0.007% f.s.

Phase Shift

Values

300 kHz,

-10.96°

100 kHz,

-1.28°

100 kHz,

-2.63°

100 kHz,

-4.60°

100 kHz,

-0.75°

100 kHz,

-2.10°

200 kHz,

-10.45°

200 kHz,

12.87°

300 kHz,

-9.82°

Delay
times

101 ns

46 ns

82 ns

128 ns

36 ns

69 ns

145 ns

179 ns

91 ns

Diameter of
measurable
conductors

φ24 mm

(0.94 in.)

φ24 mm

(0.94 in.)

φ24 mm

(0.94 in.)

φ24 mm

(0.94 in.)

φ24 mm

(0.94 in.)

φ24 mm

(0.94 in.)

φ36 mm

(1.42 in.)

φ36 mm

(1.42 in.)

φ32 mm

(1.26 in.)

Cable length

3 m

(9.84 ft.)

3 m

(9.84 ft.)

10 m

(32.81 ft.)

3 m

(9.84 ft.)

3 m

(9.84 ft.)

10 m

(32.81 ft.)

3 m

(9.84 ft.)

10 m

(32.81 ft.)

3 m

(9.84 ft.)

Operating

temperature

-30°C to 85°C

-22°F to 185°F

-40°C to 85°C

-40°F to 185°F

-40°C to 85°C

-40°F to 185°F

-30°C to 85°C

-22°F to 185°F

-40°C to 85°C

-40°F to 185°F

-40°C to 85°C

-40°F to 185°F

-40°C to 85°C

-40°F to 185°F

-40°C to 85°C

-40°F to 185°F

-10°C to 50°C
14°F to 122°F

Output terminals: ME15W

Maximum rated
voltage to earth

1000 V

CAT III

1000 V

CAT III

1000 V

CAT III

1000 V

CAT III

1000 V

CAT III

1000 V

CAT III

1000 V

CAT III

1000 V

CAT III

1000 V

CAT III

Automatic

correction*

phase

-

Yes

Yes

-

Yes

Yes

Yes

Yes

Yes

3

CT6904A-1

CT6904A-2

CT6904A-3

CT6876A

CT6876A-1

CT6877A

CT6877A-1

clamp types

9272-05

CT6841A

CT6843A

CT6844A

±0.025% rdg.

±0.007% f.s.

±0.030% rdg.

±0.009% f.s.

±0.030% rdg.

±0.009% f.s.

0.04% rdg.

±0.008% f.s.

0.04% rdg.

±0.008% f.s.

0.04% rdg.

±0.008% f.s.

0.04% rdg.

±0.008% f.s.

-

±0.2% rdg.
±0.05% f.s.

±0.2% rdg.
±0.02% f.s.

±0.2% rdg.
±0.02% f.s.

±0.02% rdg.
±0.007% f.s.

±0.025% rdg.

±0.009% f.s.

±0.025% rdg.

±0.009% f.s.

0.04% rdg.

±0.008% f.s.

0.04% rdg.

±0.008% f.s.

0.04% rdg.

±0.008% f.s.

0.04% rdg.

±0.008% f.s.

±0.3% rdg.
±0.01% f.s.

±0.2% rdg.
±0.01% f.s.

±0.2% rdg.
±0.01% f.s.

±0.2% rdg.
±0.01% f.s.

300 kHz,

-9.82°

300 kHz,

-9.82°

300 kHz,

-9.82°

200 kHz,

-12.96°

200 kHz,

-14.34°

100 kHz,

-2.63°

100 kHz

-3.34°

50 kHz, -3.34°
50 kHz, -4.18°

100 kHz,

-3.59 °

100 kHz,

-3.96 °

100 kHz,

-3.92 °

91 ns

91 ns

91 ns

180 ns

199 ns

73 ns

93 ns

186 ns,

232 ns

100 ns

110 ns

109 ns

φ32 mm

(1.26 in.)

φ32 mm

(1.26 in.)

φ32 mm

(1.26 in.)

φ36 mm

(1.42 in.)

φ36 mm

(1.42 in.)

φ80 mm

(3.15 in.)

φ80 mm

(3.15 in.)

φ46 mm

(1.81 in.)

φ20 mm

(0.79 in.)

φ20 mm

(0.79 in.)

φ20 mm

(0.79 in.)

10 m

(32.81 ft.)

3 m

(9.84 ft.)

10 m

(32.81 ft.)

3 m

(9.84 ft.)

10 m

(32.81 ft.)

3 m

(9.84 ft.)

10 m

(32.81 ft)

3 m

(9.84 ft.)

3 m

(9.84 ft.)

3 m

(9.84 ft.)

3 m

(9.84 ft.)

-10°C to 50°C
14°F to 122°F

-10°C to 50°C
14°F to 122°F

-10°C to 50°C
14°F to 122°F

-40°C to 85°C

-40°F to 185°F

-40°C to 85°C

-40°F to 185°F

-40°C to 85°C

-40°F to 185°F

-40°C to 85°C

-40°F to 185°F

0°C to 50°C

32°F to 122°F

-40°C to 85°C

-40°F to 185°F

-40°C to 85°C

-40°F to 185°F

-40°C to 85°C

-40°F to 185°F

1000 V

CAT III

1000 V

CAT III

1000 V

CAT III

1000 V

CAT III

1000 V

CAT III

1000 V

CAT III

1000 V

CAT III

600 V

CAT III

- Yes

- Yes

- Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

-

CT6845A

CT6846A

±0.2% rdg.
±0.02% f.s.

±0.2% rdg.
±0.02% f.s.

direct-wired types

PW9100A-3

PW9100A-4

±0.02% rdg.
±0.007% f.s.

±0.02% rdg.
±0.007% f.s.

±0.2% rdg.
±0.01% f.s.

±0.2% rdg.
±0.01% f.s.

±0.02% rdg.
±0.005% f.s.

±0.02% rdg.
±0.005% f.s.

10 kHz,

-0.94 °

10 kHz,

-1.05 °

300 kHz,

-2.80°

300 kHz,

-2.80°

261 ns

292 ns

26 ns

26 ns

φ50 mm

(1.97 in.)

φ50 mm

(1.97 in.)

M6 screw
terminals

M6 screw
terminals

3 m

(9.84 ft.)

3 m

(9.84 ft.)

3 ch

4 ch

-40°C to 85°C

-40°F to 185°F

-40°C to 85°C

-40°F to 185°F

0°C to 40°C

32°F to 104°F

0°C to 40°C

32°F to 104°F

- Yes

- Yes

1000 V CAT II

600 V CAT III

1000 V CAT II

600 V CAT III

*3: When using PW8001

Yes

Yes

10

Specications

Waveform observation

Model Appearance

Rated current:

output rate

High-sensitivity observation of currents ranging in magnitude from minuscule to large

CT6710

CT6711

0.5 Arms: 10 V/A
5 Arms: 1 V/A

30 Arms: 0.1 V/A

0.5 Arms: 10 V/A
5 Arms: 1 V/A

30 Arms: 0.1 V/A

Observation of minuscule currents

CT6700 5 Arms: 1 V/A DC to 50 MHz 7.0 ns or less 13 ns

CT6701

5 Arms: 1 V/A DC to 120 MHz 2.9 ns or less 12 ns

Observation of large currents

3273-50 30 Arms: 0.1 V/A DC to 50 MHz 7.0 ns or less 16 ns

3276

30 Arms: 0.1 V/A DC to 100 MHz 3.5 ns or less 14 ns

Frequency

range

Rise time

(10% to 90%)

Delay

time

DC to 50 MHz 7.0 ns or less 12 ns*

DC to 120 MHz 2.9 ns or less 12 ns*

2

2

Amplitude

accuracy

±3.0% rdg.

±1 mV

±3.0% rdg.

±1 mV

±3.0% rdg.

±1 mV

±3.0% rdg.

±1 mV

±1.0% rdg.

±1 mV

±1.0% rdg.

±1 mV

Diameter of
measurable
conductors

φ5 mm

(0.20 in.)

φ5 mm

(0.20 in.)

φ5 mm

(0.20 in.)

φ5 mm

(0.20 in.)

φ5 mm

(0.20 in.)

φ5 mm

(0.20 in.)

Output terminals: BNC

1

Operating

temperature

0°C to 40°C

32°F to 104°F

0°C to 40°C

32°F to 104°F

0°C to 40°C

32°F to 104°F

0°C to 40°C

32°F to 104°F

0°C to 40°C

32°F to 104°F

0°C to 40°C

32°F to 104°F

Cable

length*

1.5 m, 1 m

(4.92 ft., 3.28 ft.)

1.5 m, 1 m

(4.92 ft., 3.28 ft.)

1.5 m, 1 m

(4.92 ft., 3.28 ft.)

1.5 m, 1 m

(4.92 ft., 3.28 ft.)

1.5 m, 1 m

(4.92 ft., 3.28 ft.)

1.5 m, 1 m

(4.92 ft., 3.28 ft.)

3274

3275

150 Arms: 0.01 V/A DC to 10 MHz 35 ns or less 40 ns

500 Arms: 0.01 V/A DC to 2 MHz 175 ns or less 66 ns

±1.0% rdg.

±1 mV

±1.0% rdg.

±5 mV

φ20 mm

(0.79 in.)

φ20 mm

(0.79 in.)

2.0 m, 1 m

(6.56 ft., 3.28 ft.)

2.0 m, 1 m

(6.56 ft., 3.28 ft.)

0°C to 40°C

32°F to 104°F

0°C to 40°C

32°F to 104°F

*1: Sensor cable: cable between relay box and sensor for models with relay boxes (i.e. CT6710, CT6711), power supply cable for other models *2: When using 0.5 A range: 13 ns

Grid power quality control

Model Appearance Rated current

Frequency

range

Amplitude

accuracy

Diameter of
measurable
conductors

Cable length

Output terminals: PL14

Operating

temperature

CAT

Measurement of load current

CT7126 60 A AC 40 Hz to 20 kHz

CT7131

CT7731

CT7631

CT7736

100 A AC 40 Hz to 20 kHz

100 A AC/DC DC to 5 kHz

100 A AC/DC DC to 10 kHz

600 A AC/DC DC to 5 kHz

±0.3% rdg.
±0.01% f.s.

±0.3% rdg.
±0.02% f.s.

±1.0% rdg.

±0.5% f.s.

±1.0% rdg.

±0.5% f.s.

±2.0% rdg.

±0.5% f.s.

φ15 mm

(0.59 in.)

φ15 mm

(0.59 in.)

φ33 mm

(1.30 in.)

φ33 mm

(1.30 in.)

φ33 mm

(1.30 in.)

2.5 m

(8.20 ft.)

2.5 m

(8.20 ft.)

2.5 m

(8.20 ft.)

2.5 m

(8.20 ft.)

2.5 m

(8.20 ft.)

-10°C to 50°C
14°F to 122°F

-10°C to 50°C
14°F to 122°F

-25℃ to 65℃

-13°F to 149°F

-25℃ to 65℃

-13°F to 149°F

-25℃ to 65℃

-13°F to 149°F

300 V CAT III

300 V CAT III

600 V CAT IV

600 V CAT IV

600 V CAT IV

CT7636

CT7136

CT7742

CT7642

600 A AC/DC DC to 10 kHz

600 A AC 40 Hz to 20 kHz

2000 A AC/DC DC to 5 kHz

2000 A AC/DC DC to 10 kHz

±2.0% rdg.

±0.5% f.s.

±0.3% rdg.
±0.01% f.s.

±1.5% rdg.

±0.5% f.s.

±1.5% rdg.

±0.5% f.s.

φ33 mm

(1.30 in.)

φ46 mm

(1.81 in.)

φ55 mm

(2.17 in.)

φ55 mm

(2.17 in.)

2.5 m

(8.20 ft.)

2.5 m

(8.20 ft.)

2.5 m

(8.20 ft.)

2.5 m

(8.20 ft.)

-25℃ to 65℃

-13°F to 149°F

-10°C to 50°C
14°F to 122°F

-25℃ to 65℃

-13°F to 149°F

-25℃ to 65℃

-13°F to 149°F

600 V CAT IV

1000 V CAT III

600 V CAT IV

1000 V CAT III

600 V CAT IV

1000 V CAT III

600 V CAT IV

1000 V CAT III

Specications

11

Model Appearance Rated current

Frequency

range

Measurement of large currents

CT7044 6000 A AC 10 Hz to 50 kHz

CT7045

CT7046

6000 A AC 10 Hz to 50 kHz

6000 A AC 10 Hz to 50 kHz

Measurement of leakage current

CT7116 6 A AC 40 Hz to 5 kHz

*Sensor cable: between exible loop and circuit box for exible sensors (e.g. CT7044), output cable for CT7116

Grid power quality control

Model Appearance Rated current

Measurement of load current

9694 5 A AC 40 Hz to 5 kHz

Frequency

range

Amplitude

accuracy

±1.5% rdg.
±0.25% f.s.

±1.5% rdg.
±0.25% f.s.

±1.5% rdg.
±0.25% f.s.

±1.0% rdg.
±0.05% f.s.

Amplitude

accuracy

±0.3% rdg.
±0.02% f.s.

Diameter of
measurable
conductors

φ100 mm

(3.94 in.)

φ180 mm

(7.09 in.)

φ254 mm

(10.00 in.)

φ40 mm

(1.57 in.)

Diameter of
measurable
conductors

φ15 mm

(0.59 in.)

Cable length

2.3 m, 0.2 m*

(7.55 ft., 0.66 ft.)

2.3 m, 0.2 m*

(7.55 ft., 0.66 ft.)

2.3 m, 0.2 m*

(7.55 ft., 0.66 ft.)

2.5 m

(8.20 ft.)

Cable length

3 m

(9.84 ft.)

Operating

temperature

-25℃ to 65℃

-13°F to 149°F

-25℃ to 65℃

-13°F to 149°F

-25℃ to 65℃

-13°F to 149°F

-25℃ to 65℃

-13°F to 149°F

1000 V CAT III

1000 V CAT III

1000 V CAT III

Output terminals: BNC

Operating

temperature

0°C to 50°C

32°F to 122°F

CAT

600 V CAT IV

600 V CAT IV

600 V CAT IV

-

CAT

300 V CAT III

9695-02*

9660

9695-03*

9010-50

9018-50

9132-50

CT6500

9661

9669

1

1

50 A AC 40 Hz to 5 kHz

100 A AC 40 Hz to 5 kHz

100 A AC 40 Hz to 5 kHz

10 A to 500 A

10 A to 500 A

20 A to 1000 A

500 A AC 40 Hz to 1 kHz

500 A AC 40 Hz to 5 kHz

1000 A AC 40 Hz to 5 kHz

Measurement of large currents

CT9667-01

500 A, 5000 A

AC

AC

AC

AC

40 Hz to 1 kHz

40 Hz to 3 kHz

40 Hz to 1 kHz

10 Hz to 20 kHz

±0.3% rdg.
±0.02% f.s.

±0.3% rdg.
±0.02% f.s.

±0.3% rdg.
±0.02% f.s.

±2% rdg.

±1% f.s.

±1.5% rdg.

±0.1% f.s.

±3% rdg.

±0.2% f.s.

±1.5% rdg.
±0.03% f.s.

±0.3% rdg.
±0.01% f.s.

±1.0% rdg.
±0.01% f.s.

±2% rdg.

±0.3% f.s.

φ15 mm

(0.59 in.)

φ15 mm

(0.59 in.)

φ15 mm

(0.59 in.)

φ46 mm

(1.81 in.)

φ46 mm

(1.81 in.)

φ55 mm

(2.17 in.)

φ46 mm

(1.81 in.)

φ46 mm

(1.81 in.)

φ55 mm

(2.17 in.)

φ100 mm

(3.94 in.)

-

3 m

(9.84 ft.)

-

3 m

(9.84 ft.)

3 m

(9.84 ft.)

3 m

(9.84 ft.)

3 m

(9.84 ft.)

3 m

(9.84 ft.)

3 m

(9.84 ft.)

2

2 m, 1 m*

(6.56 ft., 3.28 ft.)

0°C to 50°C

32°F to 122°F

0°C to 50°C

32°F to 122°F

0°C to 50°C

32°F to 122°F

0°C to 50°C

32°F to 122°F

0°C to 50°C

32°F to 122°F

-10°C to 50°C
14°F to 122°F

0°C to 50°C

32°F to 122°F

0°C to 50°C

32°F to 122°F

0°C to 50°C

32°F to 122°F

-25℃ to 65℃

-13°F to 149°F

300 V CAT III

300 V CAT III

300 V CAT III

600 V CAT III

600 V CAT III

600 V CAT III

600 V CAT III

600 V CAT III

600 V CAT III

600 V CAT IV

1000 V CAT III

CT9667-02

CT9667-03

500 A, 5000 A

AC

500 A, 5000 A

AC

10 Hz to 20 kHz

10 Hz to 20 kHz

Measurement of leakage current

9657-10 10 A AC 40 Hz to 5 kHz

9675

*1: The 9695-02 and 9695-03 use an M3 terminal block for their output terminals. The extra purchase of the connection cable 9219 is required.

10 A AC 40 Hz to 5 kHz

*2: Sensor cable: between exible loop and circuit box for exible sensors (e.g. CT9667-01), output cable for others.

±2% rdg.

±0.3% f.s.

±2% rdg.

±0.3% f.s.

±1.0% rdg.
±0.05% f.s.

±1.0% rdg.

±0.005% f.s.

φ180 mm

(7.09 in.)

φ254 mm

(10.00 in.)

φ40 mm

(1.57 in.)

φ30 mm

(1.18 in.)

2

2 m, 1 m*

(6.56 ft., 3.28 ft.)

2

2 m, 1 m*

(6.56 ft., 3.28 ft.)

3 m

(9.84 ft.)

3 m

(9.84 ft.)

-25℃ to 65℃

-13°F to 149°F

-10°C to 50°C
14°F to 122°F

0°C to 50°C

32°F to 122°F

0°C to 50°C

32°F to 122°F

600 V CAT IV

1000 V CAT III

600 V CAT IV

1000 V CAT III

-

-

12

Instrument Connections

High-accuracy measurement

ME15W

* Depending on the connected instruments, it may not be possible to
measure up to the rated current of the current sensors.
For details, refer to the instruction manual of the connected instruments.

CT6862-05

CT6872

CT6872-01

CT6863-05

CT6873

CT6873-01

CT6875A

CT6875A-1

CT6904A

CT6904A-1

CT6904A-2

Directly wired External power supply + connection cord

ME15W

PW8001

ME15W

CT9555, CT9556

Connects one sensor

CT9557*

Connects four sensors.

BNC

PW3335-03

BNC

L9217

Isolated BNC

Connects CT9555, CT9556
or CT6557 and instrument.

BNC

U8975

BNC

9165

metallic BNC

BNC

MR8870

BNC

Conversion

cable

CT9901

Converts ME15W
terminal to PL23

terminal

PL23

8971+9318

The 9318
comes with the 8971

CT6904A-3

CT6876A

CT6876A-1

CT6877A

CT6877A-1

9272-05

CT6841A

CT6843A

CT6844A

CT6845A

CT6846A

PW9100A-3

PW9100A-4

We accept special orders

for extending sensor
cables. For inquiries,
please contact Hioki for
more information.

PW6001

PW3335-04

ME15W

PW3390

PW3336

ME15W

U8977

CT9902 (ME15W-ME15W)

The CT9902 can be used to extend
a current sensor’s cable by 5 m. Up

two of these cables can be used for

a maximum extension of 10 m.

*When using the CT9902, an addition

must be made to accuracy.

For details, see the sensor’s user manual.

PW3337

BNC

BNC

U8976

BNC

U8978

BNC

8966

BNC

8968

BNC

8972

MR8880

BNC

MR8875
+ MR8901

*The CT9557 can output four channels of

input as an added waveform.

CT9557 Front

Sensor input

Total RMS

output

1

(BNC)

Total waveform

output

2

(BNC)

Total waveform

output

3

(ME15W)

Rear

CONNECTION CABLE

L9217, 9165

BNC-BNC

CONNECTION CABLE

L9217, 9165

BNC-BNC

CONNECTION CABLE

CT9904

ME15W-ME15W

1 2 3

Waveform observation

BNC

Instrument Connections

* Depending on the connected instruments, it may not be possible to
measure up to the rated current of the current sensors.
For details, refer to the instruction manual of the connected instruments.

13

CT6710

CT6711

CT6700

CT6701

3273-50

3276

3274

3275

We accept special orders

for extending sensor
cables. For inquiries,
please contact Hioki for
more information.

Directly wired

BNC

PW6001*

*CT6710 and CT6711

connections fall outside
the accuracy guarantee.

Z5021

MR6000 dedicated factory option
No. of power supply channels: 8
Total output: 4.8 A

BNC

U8975*

8966

BNC

Eternal power supply

BNC

U8976

BNC

3269

No. of power
supply channels: 4

Total output: 2.5 A

See below for the number of probes that

can be connected.

BNC

3272

No. of power

supply channels: 2
Total output: 600 mA

BNC

PW8001

BNC

+ U7001

The following products can be used with
the U8975, U8976, U8978, 8966, 8968, and 8972

✔

MR6000

MR8740T

U8975
U8976
U8977
U8978
8966
8968
8971
8972

U8975
U8976 ­U8977
U8978
8966
8968
8971
8972

✔

✔

✔

✔

✔

✔

✔

MR8847A

✔

✔

✔

✔

✔

✔

✔

MR8740

U8975
U8976 ­U8977
U8978
8966
8968
8971
8972

U8975 ­U8976 ­U8977 ­U8978 ­8966
8968
8971
8972

8968

*Special-order cables are required when using three or more probes
simultaneously. Please contact Hioki for details.

U8978*

8972

Current consumption per probe and number of
probes per power supply

Current consumption varies by probe. The following table

✔

✔

✔

✔

✔

✔

✔

✔

✔

✔

✔

MR8827

MR8741

U8975 ­U8976 ­U8977 ­U8978 ­8966
8968
8971
8972

U8975 ­U8976 ­U8977 ­U8978 ­8966
8968
8971 ­8972

indicates how many probes can be utilized when using
one type of probe per power supply.

Sensor

✔

✔

✔

✔

CT6710

CT6711

CT6700

CT6701

3273-50

3274

✔

✔

✔

3275

3276

*When measuring the rated current.

Consumption

approx. 650 mA 4 2 -

approx. 650 mA 4 2 -

approx. 250 mA 8 4 2

approx. 250 mA 8 4 2

approx. 450 mA 8 4 1

approx. 450 mA 8 4 1

approx. 600 mA 8 4 1

approx. 450 mA 8 4 1

current*

Z5021 3269 3272

14

Instrument Connections

Grid power quality control (PL14)

PL14

* Depending on the connected instruments, it may not be possible to
measure up to the rated current of the current sensors.
For details, refer to the instruction manual of the connected instruments.

CT7126

CT7131

CT7731

CT7631

CT7736

CT7636

CT7136

CT7742

CT7642

CT7044

CT7045

Directly wired

PL14

PQ3198

PL14

Conversion

cable

CT9920

Converts PL14

terminal to

ME15W terminal

ME15W

U8977

ME15W

CM7290
CM7291

BNC

U8975

BNC

L9095

Connects

CM7290, CM7291

and instrument

BNC

LR8513

BNC

CT7046

CT7116

We accept special orders

for extending sensor

cables. Please contact

Hioki for more information.

Extends a cable with
a PL14 terminal

L0220-01 2 m

L0220-02 5 m

L0220-03 10 m

L0220-04 20 m

L0220-05 30 m

L0220-06 50 m

L0220-07 100 m

No accuracy addition
is necessary when

using the L0220.

However, use of two or
more cables together
falls outside the
accuracy guarantee.

PQ3100

PL14

CM7290

PL14

CM7291

PW3390

U8976

BNC

U8978

BNC

8966

BNC

8968

BNC

8972

MR8870

BNC

MR8880

BNC

MR8875
+ MR8901

Grid power quality control (BNC)

BNC

Instrument Connections

* Depending on the connected instruments, it may not be possible to
measure up to the rated current of the current sensors.
For details, refer to the instruction manual of the connected instruments.

15

9694

9695-02 *

9660

9695-03 *

9010-50

9018-50

9132-50

CT6500

9661

9669

CT9667-01

BNC

PW3335-03

BNC

Directly wired

BNC

U8975

BNC

BNC

LR8513

BNC

Conversion

cable

L9910

Converts BNC

terminal to PL14

terminal

PL14

PQ3198

PL14

Conversion

cable

9704

Converts BNC
terminal to
banana terminal

Banana

DT4281

Banana

CT9667-02

CT9667-03

9657-10

9675

*Requires Connection

Cable 9219 sold

separately

We accept special orders

for extending sensor

cables. Please contact

Hioki for more information.

PW3335-04

BNC

PW3336

BNC

PW3337

BNC

PW3365

BNC

U8976

BNC

U8978

BNC

8966

BNC

8968

BNC

LR5051

BNC

MR8870

BNC

MR8880

BNC

PQ3100

PL14

CM7290

PL14

CM7291

DT4261

Banana

DT4253

Banana

DT4255

Banana

DT4256

PW3360

MR8875
+ MR8901

8972

16

Measured conductor

2f

Output

resistance

Excellent accuracy at

Excellent accuracy at

Gain

Frequency

Gain

Frequency

· Modulated wave

· Switching frequency + harmonics

Inverter output: principal active power components

Frequency [Hz]

Introduction to Current Sensors Designed for High-accuracy Measurement

Accurately evaluating power conversion efciency

Improving power conversion efciency is a key part of the effort to facilitate the effective use of energy. Devices that

operate at high frequencies are increasingly being used to improve efficiency, and evaluation processes undertaken
during the development of such devices requires accurate measurement of power at the low frequencies used by in
previous devices as well as at high frequencies. Additionally, sensors that can resist noise are necessary since noise
becomes stronger as the frequency increases. Hioki offers current sensors that can measure power accurately while
providing robust noise resistance over a broad band of frequencies.

Magnetic flux Φ due to

measurement current

Magnetic core

f

Excitation

Detection

AMP

Flux gate

Measurement current

Secondary
current

Feedback

winding

Magnetic flux due to

High-frequency currents are detected by a winding (CT),
while DC to low-frequency currents are detected by a ux gate.

Zero-ux method (ux gate) current sensors

Shunt

secondary current

Zero-ux method: achieving stable,

wideband measurement from
DC to high frequencies

low frequencies

Flux gate detection

Frequency

Flat characteristics from low to high frequencies

Zero-flux method

Flux gate detection

high frequencies

winding (CT) detection

Gain

winding (CT) detection

CT6841A, CT6843A,
CT6844A

CT6845A, CT6846A

Application

Evaluating the power conversion efciency of an inverter

When evaluating the power conversion efciency of an inverter, the inverter’s input and output power are measured and its efciency is checked. PWM (pulse
width modulated) inverter output, which has been widely used in recently years, contains a modulated wave (fundamental wave) and a switching frequency along
with their respective harmonic components. Since switching frequencies tend to be high, the process requires wide frequency band current sensors.

Evaluation of power

conversion efficiency

Output power

Input power (DC)

(fundamental wave) + harmonics

CT6872, CT6873

Output power

(up to high frequencies)

Inverter MotorBattery

CT6875A, CT6876A CT6877A CT6904ACT6862-05, CT6863-05,

Active power [W]

High power factor

1 kHz 10 kHz 100 kHz 1 MHz

Modulated wave
(fundamental wave) +
harmonics

Switching frequency +
harmonics

Low power factor

Since the power factor decreases with harmonics, current sensors’
phase measurement accuracy becomes key (see right).

accounting for conductor position

Gain error* [% rdg]

deviation from center

0.5

100 kHz

Gain error* [% rdg]

0.0100

60 Hz

Introduction to Current Sensors Designed for High-accuracy Measurement

At low power factors, phase error has
a significant effect on power error.

𝑄

2

Degree [°]

Example of the Automatic
Phase Correction for
the CT6904A AC/DC current sensor

PW8001: Automatic Phase

Phase measurement accuracy and correction: accurately measuring power at low power factors

For typical current sensors, phase measurement accuracy is not dened. However, phase measurement precision is important in applications where power
must be measured with a high degree of accuracy. Power can be measured more accurately by selecting a current sensor for which phase measurement
accuracy is dened in the measurement band.

17

Power ratio ≈ 1 Power ratio ≈ 0

𝑄

Phase

error

θ

The power factor decreases in the high-frequency

range of the switching frequencies and other
frequency components. At low power factors,
phase error has a significant effect on power
measured values.

P

Access the QR Code to view
the technical documentation
on phase correction.

θ

P

Active

power error

Correction function

Automatic acquisition of

phase correction values

Power supplied
from instrument

Information stored in

the current sensors' internal memory

Phase shift

Rated current

Sensor model Serial number

For typical sensors, phase error increases with frequency. Since Hioki has developed
both current sensors and the measuring instruments, current sensors’ phase

characteristics can be corrected by the instruments, allowing accurate power values to
be calculated.

0

-2

-4

Phase
Phase

-6

when using
the Automatic Phase Correction

-8
10 100 1k 10k 100k 1M

Frequency [Hz]

Common-mode voltage rejection ratio: measuring current values accurately in noisy environments

In high-frequency measurement, sensors’ resistance to noise is critical. A sensor’s ability to remove noise is expressed by its common-mode rejection ratio
(CMRR). Sensors with a high CMRR reject more noise and therefore can make more accurate measurements.

Power

analyzer

For reactors, higher frequencies mean lower

current values. The image to the right shows

a waveform obtained by measuring reactor
current at high frequency along with variations in
current values that accompany variations in the
frequency.

1

0.1

0.01

0.001

1

0.1

Current [A rms]

0.01

0.001
500 k 1.0 M 1.5 M 2.0 M

0

Top: CT6904A CMRR 120 dB or greater (100 Hz); bottom: sensor with a low CMRR

Able to make accurate

Able to make accurate

measurements with

measurements with

high noise resistance

high noise resistance

Unable to generate accurate

Unable to generate accurate

measured values due to

measured values due to

the effects of noise

the effects of noise

Frequency [Hz]

Effects of conductor position: stable, highly reproducible sensing

In general, speaking, the effects of conductor position increase with frequency. Since the position of the conductor inside the clamp core affects
the measurement accuracy, resulting the reproducibility of measurement reduces. Sensors are designed the effects of conductor position, highly

reproducible measurements are possible since conductor position does not affect measured values.

G

F

A

E

D

0.0050

0.0000

B

C

-0.0050

-0.0100

A

C

B

D E

F G

Conductor position

CT6904A Sensors designed without

When using a sensor designed with the effects of conductor position,

measured values are not affected when the conductor’s position changes.

0.4

0.3

0.2

0.1

0.0

-0.1

-0.2

-0.3

-0.4

-0.5

A

C

B

D E

Conductor position

F G

18

Excellent S/N (signal to noise)

Excellent S/N (signal to noise)

Gain

Frequency

Gain

Frequency

Turn-off Turn-on

Actual switching

Introduction to Current Probes for Observing Current Waveforms

Clearly observing current waveforms

The magnitude of the currents that flow in power-saving devices during operation and control currents that flow in

automotive accessory components have reduced to 1 mA or less. At the same time, reliance on high-speed switching

operation for device control is resulting in increased noise. Wideband current probes that are highly resistant to noise are

essential in order to clearly observe low-current waveforms without losing them in noise. Hioki offers current probes that
enable clear waveform observation while providing robust noise resistance over a broad band of frequencies.

Output

Magnetic flux Φ due to

measurement current

Magnetic flux due to
secondary current

Measurement current

Secondary

current

Shunt
resistance

Zero-ux method: realizing stable,

wideband measurement from
DC to high frequencies

ratio at low frequencies

Hall element detection

ratio at high frequencies

winding (CT) detection

Gain

Measured conductor

Feedback winding

Frequency

Flat characteristics from low to high frequencies

AMP

Magnetic coreHall element

Hall element detection

Zero-flux method

winding (CT) detection

High-frequency currents are detected by the winding (CT), while DC to

low-frequency currents are detected by the Hall element.

Zero-ux method (hall element) current probes

3274, 32753273-50, 3276CT6710, CT6711 CT6700, CT6701

Application

Evaluating the response performance of switching devices

Switching devices control equipment by turning the power on and off. The response performance of switching devices is evaluated by observing
uctuations of current and voltage when the device cycles the power on and off. Capturing current uctuations caused by high-speed switching operation

requires current probes with a broad frequency band. Additionally, noise resistance is important since switching operation generates noise.

Current
waveform

Voltage
waveform

Turn-off time Turn-on time

Current
waveform

Voltage
waveform

Ideal switching

Loss due to switching

Example of turn-on measurement

Q2: on

Q2: off

Q1

ds

V

in

V

in

C

Current probe

Q2

Surge current

OUT

L

V

ds

L

I

d

I

I

d

Current waveform

Voltage waveform

Introduction to Current Probes for Observing Current Waveforms

Failure to capture accurate waveforms due to insufficient frequency band

Example of measuring a pulse with a cyclic frequency of 1 MHz using different frequency bands

Sawtooth wave: f = 20 MHz, 1 mA peak-peak (offset +1 mA)

3

Observing waveforms from minuscule currents to large currents:
evaluating the control design of ECUs and accessory components

The control systems used in ECUs and accessory components carry currents of a variety of magnitudes according to the vehicle’s operation, from control

currents to inrush currents. Using a current probe that can switch current ranges makes it possible to observe current waveforms associated with an array
of operating conditions with a single probe.

0.5 A range 30 A range

mesurement

range

0.5 A 10 V/A

5 A 1 V/A

30 A 0.1 V/A

0.5 A 10 V/A

5 A 1 V/A

30 A 0.1 V/A

output rate

CT6710/CT6711

0.5 A, 5 A, 30 A
range switching

from minuscule currents to large currents, with a single probe

12 mA

10 mA

8 mA

6 mA

4 mA

2 mA

0 mA

20 ms

Observing a minuscule
current waveform

(current consumption of a

power-saving device)

30 A

24 A

18 A

12 A

6 A

0 A

Observing a large current
waveform

(inrush current)

Observing currents of a variety of magnitudes,

250 μs

Model Freq. band

CT6710 DC to 50 MHz

CT6711 DC to 120 MHz

CT6700 DC to 50 MHz 5 A 1 V/A

CT6701 DC to 120 MHz 5 A 1 V/A

3273-50 DC to 50 MHz 30 A 0.1 V/A

3276 DC to 100 MHz 30 A 0.1 V/A

3274 DC to 10 MHz 150 A 0.01 V/A

3275 DC to 2 MHz 500 A 0.01 V/A

19

Clearly observing minuscule currents:

operating currents of power-saving devices and control currents owing to accessory components

The magnitude of the currents that ow during operation of power-saving devices like wearables and control currents that ow in automotive accessory

components tend to decrease in to 1 mA or less. Using a current probe with a high output rate make you possible for clearly observing minuscule current
waveforms.

Noise resistance design: key to increasing output rate

100 ns

10 mV

1 2

CT6710, CT6711

3

Output rate of 10 V/A
lets you observe clear waveforms with a high S/N ratio.

400 ns

100 ns

1 2

Earlier model

1

Sine wave: f = 100 MHz, 1 mA peak-peak

2

Square wave: f = 10 MHz, 1 mA peak-peak

Output rate of 1 V/A

precludes observation of accurate waveforms as they are obscured by noise.

1 mV

3

400 ns

Hioki uses a proprietary
thin-film Hall element to
reduce the amount of noise
generated inside the probe.

Electromagnetic shielding
in the sensor improves
resistance to environmental
noise.

Observing waveforms across a broad band of frequencies:

capturing waveforms and pulse waveforms that uctuate at high speeds

Currents from switching operation of devices such as SiC and GaN inverters and currents that ow momentarily when a power supply is activated uctuate
at high speeds. Using a current probe with a wide frequency band allows you observe current waveforms that uctuate at high speed. Additionally, such

devices allow you observe current waveforms such as pulse waveforms that contain a variety of frequency components.

Measuring a current with a rising time of 10 ns

Measured with
a CT6711 in the 30 A range
Input signal conditions:
100 mA p-p, rise time 10 ns

Current probes with a wide frequency band can capture

high-speed current uctuations with a rising time of 10 ns.

BW = 500 MHz BW = 100 MHz BW = 10 MHz

BW = 5 MHz BW = 2 MHz BW = 1 MHz

Current probes with a wide frequency band can accurately
capture pulse waveforms.

20

Maximum input current [Arms]

Frequency [Hz]

Gain [dB]

Frequency [Hz]

Frequency characteristics (example of typical characteristics)

Phase [°]

Maximum input current [Arms]

Frequency [Hz]

Frequency derating

Frequency characteristics (example of typical characteristics)

Gain [dB]

Frequency [Hz]

Phase [ °]

CT6862-05

Product warranty period: 3 years

Guaranteed accuracy period: 1 year

Rated current

Frequency band

Diameter of measurable conductors

Accuracy

Frequency

DC ±0.05% ±0.01% -

DC < f ≤ 16 Hz ±0.10% ±0.02% ±0.3°
16 Hz < f ≤ 400 Hz ±0.05% ±0.01% ±0.2°
400 Hz < f ≤ 1 kHz ±0.2% ±0.02% ±0.5°
1 kHz < f ≤ 5 kHz ±0.7% ±0.02% ±1.0°
5 kHz < f ≤ 10 kHz ±1% ±0.02% ±1.0°
10 kHz < f ≤ 50 kHz ±1% ±0.02% ± (0.5 + 0.1× f kHz)°
50 kHz < f ≤ 100 kHz ±2% ±0.05% ± (0.5 + 0.1× f kHz)°
100 kHz < f ≤ 300 kHz ±5% ±0.05% ± (0.5 + 0.1× f kHz)°
300 k Hz < f ≤ 700 kHz ±10% ±0.05% ­700 kHz < f < 1 MHz ±30% ±0.05% -

The values above are when the input is a sine wave, the conductor is in the center of the sensor opening, and the
measurement instrument’s input resistance is 1 MΩ or higher.

Amplitude accuracy:

dened at the rated value or less, or within the derating curve; DC < f < 5 Hz is the typical value by design.
Phase accuracy:
dened at the rated value or less, or within the derating curve; DC < f <10 Hz is the typical value by design.

Temperature and humidity

range for guaranteed accuracy

Effect of temperature

Effect of common mode voltage 0.05% of full scale or less (1000 Vrms, DC to 100 Hz)

120

100

80

60

40

20

0

DC 1 10 100 1k 10k 100k 1M

2

0

-2

-4

-6
Gain

-8

Phase
Phase (corrected)

-10

Output voltage 40 mV/A (= 2 V/50 A)
Operating temperature and

humidity range

Storage temperature and

humidity range
Maximum rated voltage to

ground

Standards Safety: EN61010, EMC: EN61326

Cable length 3 m (9.84 ft.)

Dimensions

Weight Approx. 340 g (12.0 oz.)

1 10 100 1k 10k 100k 1M

DC

±(% of reading + % of full scale)

0°C to 40°C (32°F to 104°F), 80% RH or less

In ranges from -30°C to 0°C (-22°F to 32°F) and
40°C to 85°C (104°F to 185°F)
Amplitude sensitivity: ±0.005% of reading/°C or less
Offset voltage: ±0.005% of full scale/°C or less

-30°C to 85°C (-22°F to 185°F), 80% RH or less
(no condensation)

-30°C to 85°C (-22°F to 185°F), 80% RH or less
(no condensation)

1000 V AC/DC (50/60 Hz), measurement category III,
anticipated transient overvoltage: 8000 V

70 mm (2.76 in.) W × 100 mm (3.94 in.) H × 53 mm (2.09
in.) D (Excluding protruding parts and cables)

50 A AC/DC

DC to 1 MHz (-3 dB)

Max. φ 24 mm (0.94 in.)

Amplitude

Frequency derating

Phase

CT6872
CT6872-01

Product warranty period: 3 years

Guaranteed accuracy period: 1 year

Rated current

Frequency band

Diameter of measurable conductors

Accuracy

Frequency

DC ±0.03% ±0.002% -

DC < f ≤ 16 Hz ±0.1% ±0.01% ±0.1°
16 Hz < f ≤ 45 Hz ±0.05% ±0.01% ±0.08°
45 Hz < f ≤ 66 Hz ±0.03% ±0.007% ±0.05°
66 Hz < f ≤ 100 Hz ±0.04% ±0.01% ±0.1°
100 Hz < f ≤ 500 Hz ±0.06% ±0.01% ±0.15°
500 Hz < f ≤ 1 kHz ±0.1% ±0.01% ±0.4°
1 kHz < f ≤ 5 kHz ±0.15% ±0.02% ±0.4°
5 kHz < f ≤ 10 kHz ±0.15% ±0.02% ±0.5°
10 kHz < f ≤ 1 MHz (0.012 × f kHz)% + 0.05%

Combined accuracy with HIOKI power analyzer PW8001, PW6001 and PW3390 is specied
(DC, 45 Hz ≤ f ≤ 66 Hz). For details of combined accuracy, refer to the instruction manual.

The values above are when the input is a sine wave, the measuring instrument has an input resistance of 1 MΩ ±10%,
the voltage to ground is 0 V, there is no external magnetic eld, and the conductor is in the center of the sensor opening.
Amplitude accuracy: dened 110% of full scale or less, or within the derating curve; DC < f < 10 Hz is the value by design.
Phase accuracy: dened 110% of full scale or less, or within the derating curve; DC < f < 10 Hz is the value by design.
Add ±0.01% of reading to the amplitude accuracy for input from 100% of full scale to 110% of full scale
The CT6872-01 adds a phase accuracy of ±(0.015 × f)° at a frequency of 1 kHz < f ≤ 1 MHz.

Temperature and humidity

range for guaranteed accuracy

Effect of temperature

Common-Mode

Rejection Ratio
(CMRR)

Linearity error ±2 ppm

Offset error ±5 ppm

Amplitude errors

120

100

80

60

30

20

10

0

-10

-20

-30

40

20

0

2

0

-2

-4

-6

-8

-10

Output voltage 40 mV/A (= 2 V / 50 A)
Operating temperature and

humidity range

Storage temperature and

humidity range
Maximum rated voltage to

ground

Standards Safety: EN61010, EMC: EN61326

Cable length

Dimensions

Weight

100 A

100 A

75 A

75 A

55 A

55 A

-40°C (-40°F) ≤ TA ≤ 40°C (104°F) (1 minute)

-40°C (-40°F) ≤ T

-40°C (-40°F) ≤ T

A

: Ambient temperature

T

DC 10 100 1k 10k 100k 1M 10M

Gain
Phase
Phase (corrected)

DC 10 100 1k 10k 100k 1M 10M

50 A AC/DC

DC to 10 MHz (-3 dB)

Max. φ 24 mm (0.94 in.)

Amplitude

±(% of reading + % of full scale)

Phase

±(0.04 × f kHz)° ±0.1°

23°C ±5°C (73.4°F ±41°F), 80% RH or less

In ranges from -40°C to 18°C (-40°F to 64.4°F) and
28°C to 85°C (82.4°F to 185°F)
Amplitude sensitivity: ±20 ppm of of reading/°C
Offset voltage: ±0.2 ppm of of full scale/°C

(effect on output voltage and common mode voltage)
150 dB or greater (DC to 1 kHz)
140 dB or greater (1 kHz to 10 kHz)
120 dB or greater (10 kHz to 100 kHz)
100 dB or greater (100 kHz to 1 MHz)

DC: 7 ppm

10 Hz to 100 Hz: 0.005%
100 Hz to 1 kHz: 0.01%
1 kHz to 50 kHz: 0.1%

A

≤ 60°C (140°F) (continuous)

A

≤ 85°C (185°F) (continuous)

-40°C to 85°C (-40°F to 185°F), 80% RH or less
(no condensation)

-40°C to 85°C (-40°F to 185°F), 80% RH or less
(no condensation)

1000 V CAT III
Anticipated transient overvoltage: 8000 V

CT6872: 3 m (9.84 ft.)
CT6872-01: 10 m (32.81 ft.)

70 mm (2.76 in.) W × 110 mm (4.33 in.) H × 53 mm (2.09
in.) D (excluding protruding parts and cables)

CT6872: approx. 370 g (13.1 oz.)
CT6872-01: approx. 690 g (24.3 oz.)

50 kHz to 100 kHz: 0.3%
100 kHz to 300 kHz: 1%
300 kHz to 1 MHz: 3%

0.7 A0.7 A

20

10

0

-10

-20

-30

-40

21

Maximum input current [Arms]

Frequency [Hz]

Gain [dB]

Frequency [Hz]

Frequency characteristics (example of typical characteristics)

Phase [°]

Maximum input current [Arms]

Frequency [Hz]

Frequency derating

Frequency characteristics (example of typical characteristics)

Gain [dB]

Frequency [Hz]

Phase [ °]

CT6863-05

Product warranty period: 3 years

Guaranteed accuracy period: 1 year

Rated current

Frequency band

Diameter of measurable conductors

Accuracy

Frequency

DC ±0.05% ±0.01% -

DC < f ≤ 16 Hz ±0.10% ±0.02% ±0.3°
16 Hz < f ≤ 400 Hz ±0.05% ±0.01% ±0.2°
400 Hz < f ≤ 1 kHz ±0.2% ±0.02% ±0.5°
1 kHz < f ≤ 5 kHz ±0.7% ±0.02% ±1.0°
5 kHz < f ≤ 10 kHz ±1% ±0.02% ±1.0°
10 kHz < f ≤ 50 kHz ±2% ±0.02%
50 kHz < f ≤ 100 kHz ±5% ±0.05%
100 kHz < f ≤ 300 kHz ±10% ±0.05%
300 kHz < f ≤ 500 kHz ±30% ±0.05% -

The values above are when the input is a sine wave, the conductor is in the center
of the sensor opening, and the measurement instrument’s input resistance is 1 MΩ or higher.
Amplitude accuracy: dened at the rated value or less, or within the derating curve;

DC < f < 5 Hz is the typical value by design.

Phase accuracy: dened at the rated value or less, or within the derating curve;
DC < f < 10 Hz is the typical value by design.

Temperature and humidity

range for guaranteed accuracy

Effect of temperature

Effect of common mode voltage 0.05% of full scale or less (1000 Vrms, DC to 100 Hz)

500

400

300

200

100

0

DC 1 10 100 1k 10k 100k 1M

2

0

-2

-4

-6
Gain

-8

Phase
Phase (corrected)

-10

Output voltage 10 mV/A (= 2 V / 200 A)
Operating temperature and

humidity range

Storage temperature and

humidity range
Maximum rated voltage to

ground

Standards Safety: EN61010, EMC: EN61326

Cable length 3 m (9.84 ft.)

Dimensions

Weight Approx. 340 g (12.0 oz.)

1 10 100 1k 10k 100k 1M

DC

±(% of reading + % of full scale)

0°C to 40°C (32°F to 104°F), 80% RH or less

In ranges from -30°C to 0°C (-22°F to 32°F) and
40°C to 85°C (104°F to 185°F)
Amplitude sensitivity: ±0.005% of reading/°C or less
Offset voltage: ±0.005% of full scale/°C or less

-30°C to 85°C (-22°F to 185°F), 80% RH or less
(no condensation)

-30°C to 85°C (-22°F to 185°F), 80% RH or less
(no condensation)

1000 V AC/DC (50/60 Hz), measurement category III,
anticipated transient overvoltage: 8000 V

70 mm (2.76 in.) W × 100 mm (3.94 in.) H × 53 mm (2.09
in.) D (excluding protruding parts and cables)

200 A AC/DC

DC to 500 kHz (-3 dB)

Max. φ 24 mm (0.94 in.)

Amplitude

Frequency derating

Phase

± (0.5 + 0.1 × f kHz)°
± (0.5 + 0.1 × f kHz)°
± (0.5 + 0.1 × f kHz)°

30

20

10

0

-10

-20

-30

CT6873
CT6873-01

Product warranty period: 3 years

Guaranteed accuracy period: 1 year

Rated current

Frequency band

Diameter of measurable conductors

Accuracy

Frequency

DC ±0.03% ±0.002% -

DC < f ≤ 16 Hz ±0.1% ±0.01% ±0.1°
16 Hz < f ≤ 45 Hz ±0.05% ±0.01% ±0.08°
45 Hz < f ≤ 66 Hz ±0.03% ±0.007% ±0.05°
66 Hz < f ≤ 100 Hz ±0.04% ±0.01% ±0.1°
100 Hz < f ≤ 500 Hz ±0.05% ±0.01% ±0.15°
500 Hz < f ≤ 3 kHz ±0.1% ±0.01% ±0.4°
3 kHz < f ≤ 5 kHz ±0.2% ±0.02% ±0.4°
5 kHz < f ≤ 10 kHz ±0.2% ±0.02% ±0.5°
10 kHz < f ≤ 1 MHz (0.018 × f kHz)% + 0.05%

Combined accuracy with HIOKI power analyzer PW8001, PW6001 and PW3390 is specied
(DC, 45 Hz ≤ f ≤ 66 Hz). For details of combined accuracy, refer to the instruction manual.

The values above are when the input is a sine wave, the measuring instrument has an input resistance of 1 MΩ ±10%,
the voltage to ground is 0 V, there is no external magnetic eld, and the conductor is in the center of the sensor opening.
Amplitude accuracy: dened 110% of full scale or less, or within the derating curve; DC < f < 10 Hz is the value by design.
Phase accuracy: dened 110% of full scale or less, or within the derating curve; DC < f < 10 Hz is the value by design.
Add ±0.01% of reading to the amplitude accuracy for input from 100% of full scale to 110% of full scale
The CT6873-01 adds a phase accuracy of ±(0.015 × f)° at a frequency of 1 kHz < f ≤ 1 MHz.

Temperature and humidity

range for guaranteed accuracy

Effect of temperature

Common-Mode

Rejection Ratio
(CMRR)

Linearity errors ±2 ppm

Offset error ±5 ppm

Amplitude error

500

400

300

200

100

0

DC 10 100 1k 10k 100k 1M 10M

2

0

-2

-4

-6

-8

-10
DC 10 100 1k 10k 100k 1M 10M

Output voltage 10 mV/A (= 2 V / 200 A)
Operating temperature and

humidity range

Storage temperature and

humidity range
Maximum rated voltage to

ground

Standards Safety: EN61010, EMC: EN61326

Cable length

Dimensions

Weight

DC 400 ADC 400 A

300 A

300 A

220 A

220 A

-40°C (-40°F) ≤ TA ≤ 40°C (104°F) (1 minute)

A

-40°C (-40°F) ≤ T

-40°C (-40°F) ≤ T

TA: Ambient temperature

Gain
Phase
Phase (corrected)

≤ 60°C (140°F) (continuous)

A

≤ 85°C (185°F) (continuous)

200 A AC/DC

DC to 10 MHz (-3 dB)

Max. φ 24 mm (0.94 in.)

Amplitude

±(% of reading + % of full scale)

Phase

±(0.04 × f kHz)° ±0.1°

23°C ±5°C (73.4°F ±41°F), 80% RH or less

In ranges from -40°C to 18°C (-40°F to 64.4°F) and
28°C to 85°C (82.4°F to 185°F)
Amplitude sensitivity: ±15 ppm of of reading/°C
Offset voltage: ±0.1 ppm of of full scale/°C

(effect on output voltage and common mode voltage)
150 dB or greater (DC to 1 kHz)
140 dB or greater (1 kHz to 10 kHz)
120 dB or greater (10 kHz to 100 kHz)
100 dB or greater (100 kHz to 1 MHz)

DC: ±7 ppm

10 Hz to 500 Hz: ±0.005%
500 Hz to 3 kHz: ±0.01%
3 kHz to 30 kHz: ±0.1%

-40°C to 85°C (-40°F to 185°F), 80% RH or less
(no condensation)

-40°C to 85°C (-40°F to 185°F), 80% RH or less
(no condensation)

1000 V CAT III
Anticipated transient overvoltage: 8000 V

CT6873: 3 m (9.84 ft.)
CT6873-01: 10 m (32.81 ft.)

70 mm (2.76 in.) W × 110 mm (4.33 in.) H × 53 mm (2.09
in.) D (excluding protruding parts and cables)

CT6873: approx. 370 g (13.1 oz.)
CT6873-01: approx. 690 g (24.3 oz.)

30 kHz to 100 kHz: ±0.4%
100 kHz to 400 kHz: ±1%
400 kHz to 1 MHz: ±3%

0.7 A

0.7 A

20

10

0

-10

-20

-30

-40

22

Maximum input current [Arms]

Frequency [Hz]

Gain [dB]

Phase [°]

Frequency [Hz]

Frequency characteristics (example of typical characteristics)

Maximum input current [Arms]

Frequency [Hz]

Gain [dB]

Frequency [Hz]

Frequency characteristics (example of typical characteristics)

Phase [°]

CT6875A
CT6875A-1

Product warranty period: 3 years

Guaranteed accuracy period: 1 year

Rated current

Frequency band

Diameter of measurable conductors

Accuracy

Frequency

DC ±0.04% ±0.008% -

DC < f < 16 Hz ±0.1% ±0.02% ±0.1°
16 Hz ≤ f < 45 Hz ±0.05% ±0.01% ±0.1°
45 Hz ≤ f ≤ 66 Hz ±0.04% ±0.008% ±0.08°
66 Hz < f ≤ 100 Hz ±0.05% ±0.01% ±0.1°
100 Hz < f ≤ 500 Hz ±0.1% ±0.02% ±0.2°
500 Hz < f ≤ 1 kHz ±0.2% ±0.02% ±0.4°

1 kHz < f ≤ 5 kHz ±0.4% ±0.02% ±0.5°
5 kHz < f ≤ 10 kHz ±0.4% ±0.02% ±(0.1 × f kHz)°

10 kHz < f ≤ 50 kHz ±1.5% ±0.05% ±(0.1 × f kHz)°
50 kHz < f ≤ 100 kHz ±2.5% ±0.05% ±(0.1 × f kHz)°
100 kHz < f ≤ 1 MHz

Combined accuracy with HIOKI power analyzer PW8001, PW6001 and PW3390 is specied
(DC, 45 Hz ≤ f ≤ 66 Hz). For details of combined accuracy, refer to the instruction manual.

Amplitude accuracy: dened 110% of full scale or less, or within the derating curve;
DC < f < 10 Hz is the value by design.
Add ±0.01% of reading to the amplitude accuracy for input from 100% of full scale to 110% of full scale

· For the CT6875A-1, add the following for frequencies of
1 kHz < f ≤ 1 MHz (the frequency band is 1.5 MHz ±3 dB):

Amplitude accuracy: ±(0.005 × f kHz)% of reading, Phase accuracy: ±(0.015 × f kHz)°

Temperature and humidity

range for guaranteed accuracy

Effect of temperature

Common-Mode

Rejection Ratio
(CMRR)

Linearity error ±5 ppm

Offset error ±5 ppm

Amplitude error

2k

1k

100

-40°C (-40°F) ≤ TA ≤ 40°C (104°F) (1 minute)

-40°C (-40°F) ≤ T

-40°C (-40°F) ≤ T

A

: Ambient temperature

T

10

DC 10 100 1k 10k 100k 1M

500 A AC/DC

CT6875A: DC to 2 MHz (±3 dB)
CT6875A-1: DC to 1.5 MHz (±3 dB)

Max. φ 36 mm (1.41 in.)

Amplitude

±(% of reading + % of full scale)

±(0.025 × f kHz)% ±0.05%

0°C to 40°C (32°F to 104°F), 80% RH or less

In ranges from -40°C to 0°C (-40°F to 32°F) and
40°C to 85°C (104°F to 185°F)
Amplitude sensitivity: ±20 ppm of

Offset voltage: ±1 ppm of

(effect on output voltage and common mode voltage)
140 dB or greater (50/60 Hz)
120 dB or greater (100 kHz)

DC: ±10 ppm
10 Hz to 100 Hz: ±0.005%
100 Hz to 1 kHz: ±0.02%
1 kHz to 20 kHz: ±0.08%

reading / °C

full scale / °C

20 kHz to 100 kHz: ±0.5%
100 kHz to 300 kHz: ±1%
300 kHz to 1 MHz: ±5%

Phase

±(0.1 × f kHz)°

Frequency derating

A

≤ 60°C (140°F) (continuous)

A

≤ 85°C (185°F) (continuous)

CT6904A
CT6904A-1

(CT6904A-1: build-to-order product)

Product warranty period: 3 years

Guaranteed accuracy period: 1 year

Rated current

Frequency band

Diameter of measurable conductors

Accuracy

Frequency

DC ±0.025% ±0.007% -

DC < f < 16 Hz ±0.2% ±0.02% ±0.1°
16 Hz ≤ f < 45 Hz ±0.1% ±0.02% ±0.1°
45 Hz ≤ f ≤ 65 Hz ±0.02% ±0.007% ±0.08°
65 Hz < f ≤ 850 Hz ±0.05% ±0.007% ±0.12°
850 Hz < f ≤ 1 kHz ±0.1% ±0.01% ±0.4°
1 kHz < f ≤ 5 kHz ±0.4% ±0.02% ±0.4°
5 kHz < f ≤ 10 kHz ±0.4% ±0.02% ±(0.08 × f kHz)°
10 kHz < f ≤ 50 kHz ±1% ±0.02% ±(0.08 × f kHz)°
50 kHz < f ≤ 100 kHz ±1% ±0.05% ±(0.08 × f kHz)°
100 kHz < f ≤ 300 kHz ±2% ±0.05% ±(0.08 × f kHz)°
300 kHz < f ≤ 1 MHz ±5% ±0.05% ±(0.08 × f kHz)°

Combined accuracy with HIOKI power analyzer PW8001 and PW6001 is specied
(DC, 45 Hz ≤ f ≤ 66 Hz). For details of combined accuracy, refer to the instruction manual.

· Amplitude accuracy and phase accuracy: dened 110% of full scale or less, or within the derating curve
(continuous input at an ambient temperature of 50°C); DC < f < 10 Hz is the value by design.

· Add ±0.01% of reading to the amplitude accuracy for input from 100% of full scale to 110% of full scale

· For the CT6904A-1, add the following for frequencies of
50 kHz < f ≤ 1 MHz.(the frequency band is 2 MHz ±3 dB):

Amplitude accuracy: ±(0.015 × f)% of reading

Temperature and humidity

range for guaranteed accuracy

Effect of temperature

Common-Mode

Rejection Ratio
(CMRR)

Linearity error

Offset error

1k

100

10

DC

Continuous input at an ambient

Continuous input at an ambient

1 10 100 1k 10k 100k 1M 10M

500 A AC/DC

CT6904A: DC to 4 MHz (±3 dB)
CT6904A-1: DC to 2 MHz (±3 dB)

Max. φ 32 mm (1.25 in.)

Amplitude

±(% of reading + % of full scale)

23°C ±5°C (73°F ±9°F), 80% RH or less

In ranges from -10°C to 18°C (14°F to 64.4°F) or 28°C to
50°C (82.4°F to 122°F)
Amplitude sensitivity: ±20 ppm of of reading / °C
Offset voltage: ±1 ppm of full scale / °C
Phase: ±0.01°/°C

(effect on output voltage and common mode voltage)
140 dB or greater (50/60 Hz)
120 dB or greater (100 kHz)

±5 ppm

±10 ppm

Phase

Frequency derating

600 A

550 A

1 min. at an ambient

temperature of 50°C (122°F)

temperature of 30°C (86°F)

temperature of 50°C (122°F)

2

0

-2

-4

-6
Gain

-8

Phase
Phase (corrected)

-10

Output voltage 4 mV/A (= 2 V / 500 A)
Operating temperature and

humidity range

Storage temperature and

humidity range
Maximum rated voltage to

ground

Standards Safety: EN61010, EMC: EN61326

Cable length

Dimensions

Weight

1 10 100 1k 10k 100k 1M

DC

-40°C to 85°C (-40°F to 185°F), 80% RH or less
(no condensation)

-40°C to 85°C (-40°F to 185°F), 80% RH or less
(no condensation)

1000 V CAT III
Anticipated transient overvoltage: 8000 V

CT6875A: 3 m (9.84 ft.)
CT6875A-1: 10 m (32.81 ft.)

160 mm (6.30 in.) W × 112 mm (4.41 in.) H × 50 mm (1.97
in.) D (excluding protruding parts and cables)

CT6875A: approx. 0.8 kg (28.2 oz.)
CT6875A-1: approx. 1.1 kg (38.8 oz.)

2

20

10

0

-10

-20

-30

-40

0

-2

-4

-6
Gain

-8

Phase
Phase (corrected)

-10

Output voltage 4 mV/A (= 2 V / 500 A)
Operating temperature and

humidity range

Storage temperature and

humidity range
Maximum rated voltage to

ground

Standards Safety: EN61010, EMC: EN61326

Cable length

Dimensions

Weight

1 10 100 1k 10k 100k 1M 10M

DC

-10°C to 50°C (-14°F to 122°F), 80% RH or less (no
condensation)

-20°C to 60°C (-4°F to 140°F), 80% RH or less
(no condensation)

1000 V CAT III
Anticipated transient overvoltage: 8000 V

CT6904A: 3 m (9.84 ft.) (including relay box))
CT6904A-1: 10 m (32.81 ft.) (including relay box)

139 mm (5.47 in.) W × 120 mm (4.72 in.) H × 52 mm (2.05
in.) D (excluding protrusions and cables)

CT6904A: approx. 1.05 kg (37.0 oz.)
CT6904A-1: approx. 1.35 kg (47.6 oz.)

4

2

0

-2

-4

-6

-8

23

Maximum input current [Arms]

Frequency [Hz]

Frequency derating

Gain [dB]

Frequency [Hz]

Frequency characteristics (example of typical characteristics)

Phase [°]

Maximum input current [Arms]

Frequency [Hz]

Gain [dB]

Frequency [Hz]

Frequency characteristics (example of typical characteristics)

Phase [°]

CT6904A-2
CT6904A-3

(Build-to-order product)

Product warranty period: 3 years

Guaranteed accuracy period: 1 year

Rated current

Frequency band

Diameter of measurable conductors

Accuracy

Frequency

DC ±0.030% ±0.009% -

DC < f < 16 Hz ±0.2% ±0.025% ±0.1°
16 Hz ≤ f < 45 Hz ±0.1% ±0.025% ±0.1°
45 Hz ≤ f ≤ 65 Hz ±0.025% ±0.009% ±0.08°
65 Hz < f ≤ 850 Hz ±0.05% ±0.009% ±0.12°
850 Hz < f ≤ 1 kHz ±0.1% ±0.013% ±0.4°
1 kHz < f ≤ 5 kHz ±0.4% ±0.025% ±0.4°
5 kHz < f ≤10 kHz ±0.4% ±0.025% ±(0.08 × f kHz)°
10 kHz < f ≤ 50 kHz ±1% ±0.025% ±(0.08 × f kHz)°
50 kHz < f ≤ 100 kHz ±1% ±0.063% ±(0.08 × f kHz)°
100 kHz < f ≤ 300 kHz ±2% ±0.063% ±(0.08 × f kHz)°
300 kHz < f ≤ 1 MHz ±5% ±0.063% ±(0.08 × f kHz)°

Combined accuracy with HIOKI power analyzer PW8001 and PW6001 is specied
(DC, 45 Hz ≤ f ≤ 66 Hz). For details of combined accuracy, refer to the instruction manual.

Amplitude accuracy and phase accuracy are specied by the following conditions:

· Rated value or less

· At 100Hz or more and within the range of "Continuous input at an ambient temperature of
50°C (122°F) " described in the frequency derating graph below

· For the CT6904A-3, add the following for frequencies of 50 kHz < f ≤ 1 MHz
(frequency band is 2 MHz ±3):

Amplitude accuracy: ±(0.015 × f)% of reading

Temperature and humidity

range for guaranteed
accuracy

Effect of temperature

Common-Mode

Rejection Ratio
(CMRR)

Linearity error ±12.5 ppm

Offset error ±10 ppm

800 A AC/DC

CT6904A-2: DC to 4 MHz (±3 dB)
CT6904A-3: DC to 2 MHz (±3 dB)

Max. φ 32 mm (1.25 in.)

Amplitude

±(% of reading + % of full scale)

23°C ±5°C (73°F ±9°F), 80% RH or less

In ranges from -10°C to 18°C (14°F to 64.4°F) or 28°C to
50°C (82.4°F to 122°F)
Amplitude sensitivity: ± 50 ppm of reading / °C
Offset voltage: ±5 ppm of full scale / °C
Phase: ±0.01° / °C

(effect on output voltage and common mode voltage)
140 dB or greater (50/60 Hz)
120 dB or greater (100 kHz)

Phase

CT6876A
CT6876A-1

Product warranty period: 3 years

Guaranteed accuracy period: 1 year

Rated current

Frequency band

Diameter of measurable conductors

Accuracy

Frequency

DC ±0.04% ±0.008% -

DC < f < 16 Hz ±0.1% ±0.02% ±0.1°
16 Hz ≤ f < 45 Hz ±0.05% ±0.01% ±0.1°
45 Hz ≤ f ≤ 66 Hz ±0.04% ±0.008% ±0.08°
66 Hz < f ≤ 100 Hz ±0.05% ±0.01% ±0.1°
100 Hz < f ≤ 500 Hz ±0.1% ±0.02% ±0.2°
500 Hz < f ≤ 1 kHz ±0.2% ±0.02% ±0.4°

1 kHz < f ≤ 5 kHz ±0.5% ±0.02% ±0.5°
5 kHz < f ≤ 10 kHz ±0.5% ±0.02% ±(0.1 × f kHz)°

10 kHz < f ≤ 50 kHz ±2% ±0.05% ±(0.1 × f kHz)°
50 kHz < f ≤ 100 kHz ±3% ±0.05% ±(0.1 × f kHz)°
100 kHz < f ≤ 1 MHz ±(0.03 × f kHz)% ±0.05% ±(0.1 × f kHz)°

Combined accuracy with HIOKI power analyzer PW8001, PW6001 and PW3390 is specied
(DC, 45 Hz ≤ f ≤ 66 Hz). For details of combined accuracy, refer to the instruction manual.

· Amplitude accuracy and phase accuracy: dened 110% of full scale or less or within the derating curve;
DC < f < 10 Hz is the value by design

· Add ±0.01% of reading to the amplitude accuracy for input from 100% of full scale to 110% of full scale

· For the CT6876A-1, add the following for frequencies of 1 kHz < f ≤ 1 MHz
(the frequency band is 1.2 MHz ±3 dB):

Amplitude accuracy: ±(0.005 × f kHz)% of reading, Phase accuracy: ±(0.015 × f kHz)°

Temperature and humidity

range for guaranteed accuracy

Effect of temperature

Common-Mode

Rejection Ratio
(CMRR)

Linearity error ±5 ppm

Offset error ±5 ppm

Amplitude error

1000 A AC/DC

CT6876A: DC to 1.5 MHz (±3 dB)
CT6876A-1: DC to 1.2 MHz (±3 dB)

Max. φ 36 mm (1.41 in.)

Amplitude

±(% of reading + % of full scale)

0°C to 40°C (32°F to 104°F), 80% RH or less

In ranges from -40°C to 0°C (-40°F to 32°F) and
40°C to 85°C (104°F to 185°F)
Amplitude sensitivity: ±20 ppm of

Offset voltage: ±1 ppm of

(effect on output voltage and common mode voltage)
140 dB or greater (50/60 Hz)
120 dB or greater (100 kHz)

DC: ±10 ppm
10 Hz to 100 Hz: ±0.005%
100 Hz to 1 kHz: ±0.03%
1 kHz to 10 kHz: ±0.2%

reading / °C

full scale / °C

10 kHz to 100 kHz: ±1%
100 kHz to 300 kHz: ±3%
300 kHz to 1 MHz: ±15%

Phase

1k

750 A

100

10

DC

2

0

-2

-4

-6
Gain

-8

Phase
Phase (corrected)

-10
DC

Output voltage 2 mV/A (= 2 V / 1000 A)
Operating temperature and

humidity range

Storage temperature and

humidity range
Maximum rated voltage to

ground

Standards Safety: EN61010, EMC: EN61326

Cable length

Dimensions

Weight

temperature of 50°C (122°F)

Continuous input at an ambient

temperature of 30°C (86°F)

Continuous input at an ambient

temperature of 50°C (122°F)

1 10 100 1k 10k 100k 1M 10M

1 10 100 1k 10k 100k 1M 10M

-10°C to 50°C (-14°F to 122°F), 80% RH or less (no
condensation)

-20°C to 60°C (-4°F to 140°F), 80% RH or less
(no condensation)

1000 V CAT III
Anticipated transient overvoltage: 8000 V

CT6904A-2: 3 m (9.84 ft.) (including relay box)
CT6904A-3: 10 m (32.81 ft.) (including relay box)

139 mm (5.47 in.) W × 120 mm (4.72 in.) H × 52 mm (2.05
in.) D (excluding protrusions and cables)

CT6904A-2: approx. 1.15 kg (40.6 oz.)
CT6904A-3: approx. 1.45 kg (51.1 oz.)

800 A

1 min. at an ambient

2k

Frequency derating

1k

100

4

2

0

-2

-4

-6

-8

Output voltage 2 mV/A (= 2 V / 1000 A)
Operating temperature and

humidity range

Storage temperature and

humidity range
Maximum rated voltage to

ground

Standards Safety: EN61010, EMC: EN61326

Cable length

Dimensions

Weight

-40°C (-40°F) ≤ TA ≤ 40°C (104°F) (1 minute)

-40°C (-40°F) ≤ T

-40°C (-40°F) ≤ T

A

: Ambient temperature

T

10

DC 10 100 1k 10k 100k 1M

2

0

-2

-4

-6
Gain

-8

Phase
Phase (corrected)

-10
1 10 100 1k 10k 100k 1M

DC

A

≤ 60°C (140°F) (continuous)

A

≤ 85°C (185°F) (continuous)

-40°C to 85°C (-40°F to 185°F), 80% RH or less
(no condensation)

-40°C to 85°C (-40°F to 185°F), 80% RH or less
(no condensation)

1000 V CAT III
Anticipated transient overvoltage: 8000 V

CT6876A: 3 m (9.84 ft.)
CT6876A-1: 10 m (32.81 ft.)

160 mm (6.30 in.) W × 112 mm (4.41 in.) H × 50 mm (1.97
in.) D (excluding protruding parts and cables)

CT6876A: approx. 0.95 kg (33.5 oz.)
CT6876A-1: approx. 1.25 kg (44.1 oz.)

20

10

0

-10

-20

-30

-40

24

Maximum input current [Arms]

Frequency [Hz]

Gain [dB]

Frequency [Hz]

Frequency characteristics (example of typical characteristics)

Phase [°]

Maximum input current [Arms]

Frequency [Hz]

Gain [dB]

Frequency [Hz]

Frequency characteristics (example of typical characteristics)

Phase [°]

CT6877A
CT6877A-1

Product warranty period: 3 years

Guaranteed accuracy period: 1 year

Rated current

Frequency band

Diameter of measurable conductors

Accuracy

Frequency

DC ±0.04% ±0.008% -

DC < f < 16 Hz ±0.1% ±0.02% ±0.1°
16 Hz ≤ f < 45 Hz ±0.05% ±0.01% ±0.1°
45 Hz ≤ f ≤ 66 Hz ±0.04% ±0.008% ±0.08°
66 Hz < f ≤ 100 Hz ±0.05% ±0.01% ±0.1°
100 Hz < f ≤ 500 Hz ±0.1% ±0.02% ±0.2°
500 Hz < f ≤ 1 kHz ±0.2% ±0.02% ±0.4°

1 kHz < f ≤ 5 kHz ±0.5% ±0.02%
5 kHz < f ≤ 10 kHz ±0.5% ±0.02%

10 kHz < f ≤ 50 kHz ±1.5% ±0.05%
50 kHz < f ≤ 100 kHz ±2.5% ±0.05%
100 kHz < f ≤ 700 kHz ±(0.025 × f)% ±0.05%

Combined accuracy with HIOKI power analyzer PW8001, PW6001 and PW3390 is specied
(DC, 45 Hz ≤ f ≤ 66 Hz). For details of combined accuracy, refer to the instruction manual.

· Amplitude accuracy and phase accuracy: dened 110% of full scale or less, or within the derating
curve, DC < f < 10 Hz is the value by design

· Add ±0.01% of reading to the amplitude accuracy for input from 100% of full scale to 110% of full scale

· For the CT6877A-1, add the following for frequencies of 1 kHz < f ≤ 700 kHz:
Amplitude accuracy: ±(0.005 × f)% of reading, Phase accuracy: ±(0.015 × f)°

Temperature and humidity

range for guaranteed
accuracy

Effect of temperature

Common-Mode

Rejection Ratio
(CMRR)

Linearity error ±10 ppm

Offset error ±5 ppm

Amplitude error

3k
2k

1k

100

Output voltage 1 mV/A (= 2 V / 2000 A)
Operating temperature and

humidity range

Storage temperature and

humidity range
Maximum rated voltage to

ground

Standards Safety: EN61010, EMC: EN61326

Cable length

Dimensions

Weight

-40°C (-40°F) ≤ T

-40°C (-40°F) ≤ T

TA: Ambient temperature

10

DC 1 10 100 1k 10k 100k 1M

2

0

-2

-4

-6
Gain

-8

Phase
Phase (corrected)

-10
1 10 100 1k 10k 100k 1M

DC

±(% of reading + % of full scale)

0°C to 40°C (32°F to 104°F), 80% RH or less

In ranges from -40°C to 0°C (-40°F to 32°F) and
40°C to 85°C (104°F to 185°F)
Amplitude sensitivity: ±15 ppm of reading / °C
Offset voltage: ±0.5 ppm of full scale / °C

(effect on output voltage and common mode voltage)
140 dB or greater (50/60 Hz)
120 dB or greater (100 kHz)

DC: ±15 ppm

Hz to 100 Hz: ±0.01%

10
100 Hz to 1 kHz: ±0.04%

kHz to 10 kHz: ±0.25%

1

A

≤ 60°C (140°F) (continuous)

A

≤ 85°C (185°F) (continuous)

-40°C to 85°C (-40°F to 185°F), 80% RH or less
(no condensation)

-40°C to 85°C (-40°F to 185°F), 80% RH or less
(no condensation)

1000 V CAT III
Anticipated transient overvoltage: 8000 V

CT6877A: 3 m (9.84 ft.)
CT6877A-1: 10 m (32.81 ft.)

229 mm (9.02 in.) W × 232 mm (9.13 in.) H × 112 mm
(4.41 in.) D (excluding protruding parts and cables)

CT6877A: approx. 5 kg (176.4 oz.)
CT6877A-1: approx. 5.3 kg (187.0 oz.)

2000 A AC/DC

DC to 1 MHz

Max. φ 80 mm (3.14 in.)

Amplitude

Frequency derating

Phase

± (0.3 + 0.1 × f kHz)°
± (0.3 + 0.1 × f kHz)°
± (0.3 + 0.1 × f kHz)°
± (0.3 + 0.1 × f kHz)°
± (0.3 + 0.1 × f kHz)°

10 kHz to 100 kHz: ±1%

kHz to 300 kHz: ±2%

100

kHz to 700 kHz: ±10%

300

PW9100A-3
PW9100A-4

Product warranty period: 3 years

Guaranteed accuracy period: 1 year

Rated current

Frequency band

Input and measurement method

Measurement terminals

Accuracy

Frequency

DC ±0.02% ±0.007% -

DC < f < 30 Hz ±0.1% ±0.02% ±0.3°
30 Hz ≤ f < 45 Hz ±0.1% ±0.02% ±0.1°
45 Hz ≤ f ≤ 65 Hz ±0.02% ±0.005% ±0.1°
65 Hz < f ≤ 500 Hz ±0.1% ±0.01% ±0.12°
500 Hz < f ≤ 1 kHz ±0.1% ±0.01% ±0.5°
1 kHz < f ≤ 5 kHz ±0.5% ±0.02% ±0.5°
5 kHz < f ≤ 20 kHz ±1% ±0.02% ±1°
20 kHz < f ≤ 50 kHz ±1% ±0.02% ±(0.05 × f kHz)°
50 kHz < f ≤ 100 kHz ±2% ±0.05% ±(0.06 × f kHz)°
100 kHz < f ≤ 300 kHz ±5% ±0.05% ±(0.06 × f kHz)°
300 kHz < f ≤ 700 kHz ±5% ±0.05% ±(0.07 × f kHz)°
700 kHz < f ≤ 1 MHz ±10% ±0.05% ±(0.07 × f kHz)°

Combined accuracy with HIOKI power analyzer PW8001, PW6001 and PW3390 is specied
(DC, 45 Hz ≤ f ≤ 66 Hz). For details of combined accuracy, refer to the instruction manual.

· Amplitude accuracy and phase accuracy: dened within the accuracy guarantee range shown in
the derating gure below; DC < f < 10 Hz is the value by design.

· Add ±0.01% of reading to the amplitude accuracy for input from 100% of full scale to 110% of full scale

Temperature and humidity

range for guaranteed
accuracy

Effect of temperature

Common-Mode

Rejection Ratio
(CMRR)

100

50

10

1

Frequency derating
Guaranteed accuracy range

0

DC 1 10 100 1k 10k 100k 10M1M

2

0

-2

20

10

0

-10

-20

-30

-40

-4

-6
Gain

-8

Phase
Phase (corrected)

-10

Output voltage 40 mV/A (= 2 V / 50 A)
Operating temperature and

humidity range

Storage temperature and

humidity range
Maximum rated voltage to

ground

Standards Safety: EN 61010, EMC: EN 61326 Class A

Cable length 0.8 m (2.62 ft.)

Dimensions

Weight

1 10 100 1k 10k 100k 1M 10M

DC

50 A AC/DC

DC to 3.5 MHz

Isolated input, DCCT* input
Terminal block M6 screws

*Direct Connection Current Transducer

Amplitude

±(% of reading + % of full scale)

23°C ±5°C (73°F ±9°F), 80% RH or less

In ranges from 0°C to 18°C (32°F to 64°F) and
28°C to 40°C (82°F to 104°F)
Amplitude sensitivity: ±20 ppm of reading /°C
Offset voltage: ±1 ppm of full scale / °C
Phase: ±0.01° / °C

(effect on output voltage and common mode voltage)
120 dB or greater (50/60 Hz, 100 kHz)

Frequency derating

30 kHz, 60 A

100 kHz, 30 A

10 MHz, 0.7 A

0°C to 40°C (32°F to 104°F), 80% RH or less
(no condensation)

-10°C to 50°C (14°F to 122°F), 80% RH or less
(no condensation)

600 V CAT III, 1000 V CAT II
Anticipated transient overvoltage: 6000 V

430 mm (16.9 in.) W × 88 mm (3.46 in.) H × 260 mm
(10.23 in.) D

PW9100A-3: approx. 3.7 kg (130.5 oz.)
PW9100A-4: approx. 4.3 kg (151.7 oz.)

Phase

4

2

0

-2

-4

-6

-8

25

Frequency derating

Frequency [Hz]

Frequency characteristics (example of typical characteristics)

Gain [dB]

Phase [ °]

Frequency [Hz]

Frequency derating

Frequency [Hz]

Frequency characteristics (example of typical characteristics)

Gain [dB]

Phase [ °]

Frequency [Hz]

CT6841A

Product warranty period: 3 years

Guaranteed accuracy period: 1 year

Rated current

Frequency band

Diameter of measurable conductors

Accuracy

Frequency

DC ±0.2% ±0.05%* -

DC < f ≤ 100 Hz ±0.2% ±0.01% ±0.1°
100 Hz < f ≤ 500 Hz ±0.3% ±0.02% ±0.2°
500 Hz < f ≤ 1 kHz ±0.5% ±0.02% ±0.5°
1 kHz < f≤ 5 kHz ±1.0% ±0.02% ±1.0°
5 kHz < f≤ 10 kHz ±1.5% ±0.02% ±1.5°
10 kHz < f≤ 50 kHz ±2.0% ±0.02%
50 kHz < f≤ 100 kHz ±5.0% ±0.05%
100 kHz < f≤ 300 kHz ±10% ±0.05%
300 kHz < f≤ 500 kHz ±15% ±0.05%
500 kHz < f < 1 MHz ±30% ±0.05%

Combined accuracy with HIOKI power analyzer PW8001, PW6001 and PW3390 is specied
(DC, 45 Hz ≤ f ≤ 66 Hz). For details of combined accuracy, refer to the instruction manual.

*DC accuracy after adjusting the offset voltage to ±0.5 mV or less.

· The values above are when the input is a sine wave or DC, the measurement instrument’s input
resistance is 1 MΩ ± 10%, voltage to ground 0 V, no external magnetic elds and the conductor is in

the center of the sensor opening.

· Amplitude accuracy and phase accuracy are dened 110% of full scale or less and within the
derating curve. DC < f < 10 Hz is a design value.

· Add ±0.03% of reading to the amplitude accuracy for input from 100% of full scale to 110% of full scale.

Temperature and humidity

range for guaranteed
accuracy

Effect of temperature

Common-Mode

Rejection Ratio
(CMRR)

Linearity error ±20 ppm

20 A AC/DC

DC to 2 MHz

Max. φ 20 mm (0.79 in.)

Amplitude

±(% of reading + % of full scale)

Phase

± (0.5 + 0.1 × f kHz)°
± (0.5 + 0.1 × f kHz)°
± (0.5 + 0.1 × f kHz)°
± (0.5 + 0.1 × f kHz)°
± (0.5 + 0.1 × f kHz)°

0°C to 40°C (32°F to 104°F), 80% RH or less

In ranges from -40°C to 0°C (-40°F to 32°F) and
40°C to 85°C (104°F to 185°F)
Amplitude sensitivity: ±0.01% of reading /°C
Offset voltage: ±0.005% of full scale / °C

(effect on output voltage and common mode voltage)
140 dB or greater
125 dB or greater (1 kHz to 10 kHz)
100 dB or greater (10 kHz to 100 kHz)
80 dB or greater (100 kHz to 1 MHz)

(DC to 1 kHz)

CT6843A

Product warranty period: 3 years

Guaranteed accuracy period: 1 year

Rated current

Frequency band

Diameter of measurable conductors

Accuracy

Frequency

DC ±0.2% ±0.02%* -

DC < f ≤ 100 Hz ±0.2% ±0.01% ±0.1°
100 Hz < f ≤ 500 Hz ±0.3% ±0.02% ±0.2°
500 Hz < f ≤ 1 kHz ±0.5% ±0.02% ±0.5°
1 kHz < f ≤ 5 kHz ±1.0% ±0.02% ±1.0°
5 kHz < f ≤ 10 kHz ±1.5% ±0.02% ±1.5°
10 kHz < f ≤ 50 kHz ±5.0% ±0.02%
50 kHz < f ≤ 100 kHz ±15% ±0.05%
100 kHz < f ≤ 300 kHz ±15% ±0.05%
300 kHz < f ≤ 500 kHz ±30% ±0.05%

Combined accuracy with HIOKI power analyzer PW8001, PW6001 and PW3390 is specied
(DC, 45 Hz ≤ f ≤ 66 Hz). For details of combined accuracy, refer to the instruction manual.

*DC accuracy after adjusting the offset voltage to ±0.2 mV or less.

· The values above are when the input is a sine wave or DC, the measurement instrument’s input
resistance is 1 MΩ ± 10%, voltage to ground 0 V, no external magnetic elds and the conductor is in

the center of the sensor opening.

· Amplitude accuracy and phase accuracy are dened 110% of full scale or less and within the
derating curve. DC < f < 10 Hz is a design value.

· Add ±0.03% of reading to the amplitude accuracy for input from 100% of full scale to 110% of full scale.

Temperature and humidity

range for guaranteed
accuracy

Effect of temperature

Common-Mode

Rejection Ratio
(CMRR)

Linearity error ±20 ppm

200 A AC/DC

DC to 700 kHz

Max. φ 20 mm (0.79 in.)

Amplitude

±(% of reading + % of full scale)

Phase

± (0.5 + 0.1 × f kHz)°
± (0.5 + 0.1 × f kHz)°
± (0.5 + 0.1 × f kHz)°
± (0.5 + 0.1 × f kHz)°

0°C to 40°C (32°F to 104°F), 80% RH or less

In ranges from -40°C to 0°C (-40°F to 32°F) and
40°C to 85°C (104°F to 185°F)
Amplitude sensitivity: ±0.01% of reading /°C
Offset voltage: ±0.005% of full scale / °C

(effect on output voltage and common mode voltage)
150 dB or greater

135 dB or greater (1 kHz to 10 kHz)
115 dB or greater (10 kHz to 100 kHz)
95 dB or greater (100 kHz to 500 kHz)

(DC to 1 kHz)

50
45

40 A40 A

40

35

30 A

30 A

30

25
20

-40°C ≤ TA ≤ 40°C (1 min.)

15
10

5

TA: Ambient temperature

Maximum input current [A rms]

0

DC

2

0

-2

-4

-6

-8

-10
DC

Output voltage 100 mV/A (= 2 V / 20 A)
Measurable conductors Insulated conductor
Operating temperature and

humidity range

Storage temperature and

humidity range

Withstand voltage

Standards Safety: EN 61010, EMC: EN 61326

Cable length 3 m (9.84 ft.)

Dimensions

Weight Approx. 370 g (13.1 oz.)

A

≤ 60°C (Continuous)

-40°C ≤ T

A

≤ 85°C (Continuous)

-40°C ≤ T

10 100 1k 10k 100k 1M

Gain
Phase

Phase (Corrected)

1 10 100 1k 10k 100k 1M

-40°C to 85°C (-40°F to 185°F), 80% RH or less
(no condensation)

-40°C to 85°C (-40°F to 185°F), 80% RH or less
(no condensation)

4260 V AC
Withstand test current of 1 mA, 50/60 Hz, 1 min.,
between jaws and cable output terminal

153 mm (6.02 in.) W × 67 mm (2.64 in.) H × 25 mm (0.98
in.) D (excluding protruding parts and cables)

500
450

400 A

400 A

400

350

300 A300 A

300

220 A

220 A

250
200
150
100

Maximum input current [A rms]

20

10

0

-10

-20

-30

-40

-10

Output voltage 10 mV/A (= 2 V / 200 A)
Measurable conductors Insulated conductor
Operating temperature and

humidity range

Storage temperature and

humidity range

Withstand voltage

Standards Safety: EN 61010, EMC: EN 61326

Cable length 3 m (9.84 ft.)

Dimensions

Weight Approx. 380 g (13.4 oz.)

-40°C ≤ TA ≤ 40°C (1 min.)

-40°C ≤ T

-40°C ≤ T

50

TA: Ambient temperature

0

DC

2

0

-2

-4

-6

Gain

-8

Phase

Phase (Corrected)

DC

A

≤ 60°C (Continuous)

A

≤ 85°C (Continuous)

10 100 1k 10k 100k 1M

1 10 100 1k 10k 100k 1M

-40°C to 85°C (-40°F to 185°F), 80% RH or less
(no condensation)

-40°C to 85°C (-40°F to 185°F), 80% RH or less
(no condensation)

4260 V AC
Withstand test current of 1 mA, 50/60 Hz, 1 min.,
between jaws and cable output terminal

153 mm (6.02 in.) W × 67 mm (2.64 in.) H × 25 mm (0.98
in.) D (excluding protruding parts and cables)

20

10

0

-10

-20

-30

-40

26

Frequency derating

Maximum input current [A rms]

Frequency [Hz]

Frequency characteristics (example of typical characteristics)

Gain [dB]

Phase [ °]

Frequency [Hz]

Frequency derating

Maximum input current [A rms]

Frequency [Hz]

Frequency characteristics (example of typical characteristics)

Gain [dB]

Phase [ °]

Frequency [Hz]

CT6844A

Product warranty period: 3 yeasr

Guaranteed accuracy period: 1 year

Rated current

Frequency band

Diameter of measurable conductors

Accuracy

Frequency

DC ±0.2% ±0.02%* -

DC < f ≤ 100 Hz ±0.2% ±0.01% ±0.1°
100 Hz < f ≤ 500 Hz ±0.3% ±0.02% ±0.2°
500 Hz < f ≤ 1 kHz ±0.5% ±0.02% ±0.5°
1 kHz < f ≤ 5 kHz ±1.0% ±0.02% ±1.0°
5 kHz < f ≤ 10 kHz ±1.5% ±0.02% ±1.5°
10 kHz < f ≤ 50 kHz ±5.0% ±0.02%
50 kHz < f ≤ 100 kHz ±15% ±0.05%
100 kHz < f ≤ 300 kHz ±30% ±0.05%

Combined accuracy with HIOKI power analyzer PW8001, PW6001 and PW3390 is specied
(DC, 45 Hz ≤ f ≤ 66 Hz). For details of combined accuracy, refer to the instruction manual.

*DC accuracy after adjusting the offset voltage to ±0.2 mV or less.

· The values above are when the input is a sine wave or DC, the measurement instrument’s input
resistance is 1 MΩ ± 10%, voltage to ground 0 V, no external magnetic elds and the conductor is in

the center of the sensor opening.

· Amplitude accuracy and phase accuracy are dened 110% of full scale or less and within the
derating curve. DC < f < 10 Hz is a design value.

Temperature and humidity

range for guaranteed
accuracy

Effect of temperature

Common-Mode

Rejection Ratio
(CMRR)

Linearity error ±20 ppm

500 A AC/DC

DC to 500 kHz

Max. φ 20 mm (0.79 in.)

Amplitude

±(% of reading + % of full scale)

Phase

±(0.15 × f kHz)°
±(0.15 × f kHz)°
±(0.15 × f kHz)°

0°C to 40°C (32°F to 104°F), 80% RH or less

In ranges from -40°C to 0°C (-40°F to 32°F) and
40°C to 85°C (104°F to 185°F)
Amplitude sensitivity: ±0.01% of reading /°C
Offset voltage: ±0.005% of full scale / °C

(effect on output voltage and common mode voltage)
150 dB or greater

135 dB or greater (1 kHz to 10 kHz)

120 dB or greater (10 kHz to 100 kHz)
100 dB or greater (100 kHz to 300 kHz)

(DC to 1 kHz)

CT6845A

Product warranty period: 3 years

Guaranteed accuracy period: 1 year

Rated current

Frequency band

Diameter of measurable conductors

Accuracy

Frequency

DC ±0.2% ±0.02%* -

DC < f ≤ 100 Hz ±0.2% ±0.01% ±0.1°
100 Hz < f ≤ 500 Hz ±0.3% ±0.02% ±0.2°
500 Hz < f ≤ 1 kHz ±0.5% ±0.02% ±0.5°
1 kHz < f ≤ 5 kHz ±1.0% ±0.02% ±(0.5 × f kHz)°
5 kHz < f ≤ 10 kHz ±1.5% ±0.02% ±(0.5 × f kHz)°
10 kHz < f ≤ 20 kHz ±5.0% ±0.02% ±(0.5 × f kHz)°
20 kHz < f ≤ 50 kHz ±10% ±0.05% ±(0.5 × f kHz)°
50 kHz < f ≤ 100 kHz ±30% ±0.05% ±(0.5 × f kHz)°

Combined accuracy with HIOKI power analyzer PW8001, PW6001 and PW3390 is specied
(DC, 45 Hz ≤ f ≤ 66 Hz). For details of combined accuracy, refer to the instruction manual.

*DC accuracy after adjusting the offset voltage to ±0.2 mV or less.

· The values above are when the input is a sine wave or DC, the measurement instrument’s input
resistance is 1 MΩ ± 10%, voltage to ground 0 V, no external magnetic elds and the conductor is in

the center of the sensor opening.

· Amplitude accuracy and phase accuracy are dened 110% of full scale or less and within the
derating curve. DC < f < 10 Hz is a design value.

· Add ±0.03% of reading to the amplitude accuracy for input from 100% of full scale to 110% of full scale.

Temperature and humidity

range for guaranteed
accuracy

Effect of temperature

Common-Mode

Rejection Ratio
(CMRR)

Linearity error ±20 ppm

500 A AC/DC

DC to 200 kHz

Max. φ 50 mm (1.97 in.)

Amplitude

±(% of reading + % of full scale)

0°C to 40°C (32°F to 104°F), 80% RH or less

In ranges from -40°C to 0°C (-40°F to 32°F) and
40°C to 85°C (104°F to 185°F)
Amplitude sensitivity: ±0.01% of reading /°C
Offset voltage: ±0.005% of full scale / °C

(effect on output voltage and common mode voltage)
150 dB or greater
130 dB or greater (1 kHz to 10 kHz)
100 dB or greater (10 kHz to 100 kHz)

(DC to 1 kHz)

Phase

800

700

600

500

400

300

200

100

0

2

0

-2

-4

-6

-8

-10

Output voltage 4 mV/A (= 2 V / 500 A)
Measurable conductors Insulated conductor
Operating temperature and

humidity range

Storage temperature and

humidity range

Withstand voltage

Standards Safety: EN 61010, EMC: EN 61326

Cable length 3 m (9.84 ft.)

Dimensions

Weight Approx. 400 g (14.1 oz.)

770 A770 A
720 A

720 A

-40°C ≤ TA ≤ 40°C (1 min.)

A

≤ 60°C (Continuous)

-40°C ≤ T

A

≤ 85°C (Continuous)

-40°C ≤ T

TA: Ambient temperature

DC

Gain
Phase

Phase (Corrected)

DC

1 10 100 1k 10k 100k 1M

10 100 1k 10k 100k 1M

-40°C to 85°C (-40°F to 185°F), 80% RH or less
(no condensation)

-40°C to 85°C (-40°F to 185°F), 80% RH or less
(no condensation)

4260 V AC
Withstand test current of 1 mA, 50/60 Hz, 1 min.,
between jaws and cable output terminal

153 mm (6.02 in.) W × 67 mm (2.64 in.) H × 25 mm (0.98
in.) D (excluding protruding parts and cables)

550 A

550 A

500 A

500 A

1200

1100

1000 A1000 A

1000

900

750 A

750 A

800

700

550A

550A

600

500
400
300
200
100

20

10

0

-10

-20

-30

-40

-10

Output voltage 4 mV/A (= 2 V / 500 A)
Measurable conductors Insulated conductor
Operating temperature and

humidity range

Storage temperature and

humidity range

Withstand voltage

Standards Safety: EN 61010, EMC: EN 61326

Cable length 3 m (9.84 ft.)

Dimensions

Weight Approx. 860 g (30.3 oz.)

-40°C ≤ TA ≤ 40°C (1 min.)

-40°C ≤ T

-40°C ≤ T

TA: Ambient temperature

0

DC

2

0

-2

-4

-6

Gain

-8

Phase

Phase (Corrected)

DC

A

≤ 60°C (Continuous)

A

≤ 85°C (Continuous)

10 100 1k 10k 100k 1M

1 10 100 1k 10k 100k 1M

-40°C to 85°C (-40°F to 185°F), 80% RH or less
(no condensation)

-40°C to 85°C (-40°F to 185°F), 80% RH or less
(no condensation)

4260 V AC
Withstand test current of 1 mA, 50/60 Hz, 1 min.,
between jaws and cable output terminal

238 mm (9.37 in.) W × 116 mm (4.57 in.) H × 35 mm (1.38
in.) D (excluding protruding parts and cables)

20

10

0

-10

-20

-30

-40

27

Frequency derating

Maximum input current [A rms]

Frequency [Hz]

Frequency characteristics (example of typical characteristics)

Gain [dB]

Phase [ °]

Frequency [Hz]

Maximum input current [A rms]

Frequency [Hz]

Frequency derating

Gain [dB]

Phase [°]

Frequency [Hz]

Frequency characteristics (example of typical characteristics)

CT6846A

Product warranty period: 3 years

Guaranteed accuracy period: 1 year

Rated current

Frequency band

Diameter of measurable conductors

Accuracy

Frequency

DC ±0.2% ±0.02%* -

DC < f ≤ 100 Hz ±0.2% ±0.01% ±0.1°
100 Hz < f ≤ 500 Hz ±0.5% ±0.02% ±0.2°
500 Hz < f ≤ 1 kHz ±1.0% ±0.02% ±0.5°
1 kHz < f ≤ 5 kHz ±2.0% ±0.02% ±(0.7 × f kHz)°
5 kHz < f ≤ 10 kHz ±5.0% ±0.02% ±(0.7 × f kHz)°
10 kHz < f ≤ 50 kHz ±30% ±0.02% ±(0.7 × f kHz)°

Combined accuracy with HIOKI power analyzer PW8001, PW6001 and PW3390 is specied
(DC, 45 Hz ≤ f ≤ 66 Hz). For details of combined accuracy, refer to the instruction manual.

*DC accuracy after adjusting the offset voltage to ±0.2 mV or less.

· The values above are when the input is a sine wave or DC, the measurement instrument’s input
resistance is 1 MΩ ± 10%, voltage to ground 0 V, no external magnetic elds and the conductor is in

the center of the sensor opening.

· Amplitude accuracy and phase accuracy are dened 110% of full scale or less and within the
derating curve. DC < f < 10 Hz is a design value.

· Add ±0.03% of reading to the amplitude accuracy for input from 100% of full scale to 110% of full scale.

Temperature and humidity

range for guaranteed
accuracy

Effect of temperature

Common-Mode

Rejection Ratio
(CMRR)

Linearity error ±20 ppm

1000 A AC/DC

DC to 100 kHz

Max. φ 50 mm (1.97 in.)

Amplitude

±(% of reading + % of full scale)

0°C to 40°C (32°F to 104°F), 80% RH or less

In ranges from -40°C to 0°C (-40°F to 32°F) and
40°C to 85°C (104°F to 185°F)
Amplitude sensitivity: ±0.01% of reading /°C
Offset voltage: ±0.005% of full scale / °C

(effect on output voltage and common mode voltage)
150 dB or greater
130 dB or greater (1 kHz to 10 kHz)
100 dB or greater (10 kHz to 50 kHz)

(DC to 1 kHz)

Phase

9272-05

Product warranty period: 3 years

Guaranteed accuracy period: 1 year

Rated current

Frequency band

Diameter of measurable conductors

Accuracy

Frequency

1 Hz ≤ f < 5 Hz ±2.0% ±0.10% ­5 Hz ≤ f < 10 Hz ±1.0% ±0.05% ±1.0°
10 Hz ≤ f < 45 Hz ±0.5% ±0.02% ±0.5°
45 Hz ≤ f ≤ 66 Hz ±0.3% ±0.01% ±0.2°
66 Hz < f ≤ 500 Hz ±0.5% ±0.02% ±0.5°
500 Hz < f ≤ 1 kHz ±0.5% ±0.02% ±1.0°
1 kHz < f ≤ 5 kHz ±1.0% ±0.05% ±2.0°
5 kHz < f ≤ 10 kHz ±2.5% ±0.10% ±3.0°
10 kHz < f ≤ 20 kHz ±5% ±0.1% ±5.0°
20 kHz < f ≤ 50 kHz ±5% ±0.1% ±15.0°
50 kHz < f ≤ 100 kHz ±30% ±0.1% -

Accuracy is specied by the following conditions:

• Less than or equal to the rated current of each current range

• Within derating range of each current range
The accuracy values above are for within the rated current for each range and inside of derating range.
(The values are the values by design: amplitude at under 5 Hz and phase at under 10 Hz)

Temperature and humidity

range for guaranteed
accuracy

Effect of temperature

400

300

20 A AC, 200 A AC (2 ranges)

1 Hz to 100 kHz

φ 46 mm or less

Amplitude

±(% of reading + % of full scale)

23°C ±5°C (73°F ±9°F), 80% RH or less

Amplitude sensitivity:

±0.03% of reading /°C

200 A range

Phase

1800

1600

1400

1200

1000

800

600

400

200

0

2

0

-2

-4

-6

-8

-10
DC

Output voltage 2 mV/A (= 2 V / 1000 A)
Measurable conductors Insulated conductor
Operating temperature and

humidity range

Storage temperature and

humidity range

Withstand voltage

Standards Safety: EN 61010, EMC: EN 61326

Cable length 3 m (9.84 ft.)

Dimensions

Weight Approx. 990 g (34.9 oz.)

1700 A1700 A

1200 A

1200 A

-40°C ≤ TA ≤ 40°C (1 min.)

A

≤ 85°C (Continuous)

-40°C ≤ T

TA: Ambient temperature

DC

Gain
Phase

Phase (Corrected)

1 10 100 1k 10k 100k 1M

10 100 1k 10k 100k 1M

-40°C to 85°C (-40°F to 185°F), 80% RH or less
(no condensation)

-40°C to 85°C (-40°F to 185°F), 80% RH or less
(no condensation)

4260 V AC
Withstand test current of 1 mA, 50/60 Hz, 1 min.,
between jaws and cable output terminal

238 mm (9.37 in.) W × 116 mm (4.57 in.) H × 35 mm (1.38
in.) D (excluding protruding parts and cables)

200

100

50

0

1 10 100 1k 10k 100k

2

0

-2

20

10

0

-10

-20

-30

-40

-4

-6

20 A range

Gain

-8

Phase

Phase (corrected)

-10
1 10 100 1k 10k 100k

Output voltage 20 A range: 100 mV/A (= 2 V / 20 A)

Operating temperature and
humidity range

Storage temperature and

humidity range
Maximum rated voltage to

ground

Standards Safety: EN 61010, EMC: EN 61326 Class A

Cable length 3 m (9.84 ft.)

Dimensions

Weight Approx. 450 g (15.9 oz.)

20 A range

200 A range

Gain
Phase

Phase (corrected)

200 A range: 10 mV/A (= 2 V / 200 A)
0°C to 50°C (32°F to 122°F), 80% RH or less (no

condensation)

-10°C to 60°C (14°F to 140°F), 80% RH or less (no
condensation)

600 V AC CAT III (50/60 Hz)
Anticipated transient overvoltage: 6000 V

78 mm (3.07 in) W × 188 mm (7.40 in) H × 35 mm (1.38
in) D (excluding protruding parts and cables)

40 A
20 A

30

20

10

0

-10

-20

-30

28

Maximum input current [Arms]

Frequency [Hz]

Frequency derating (example of typical characteristics)

Gain [dB]

Frequency [Hz]

Frequency characteristics (example of typical characteristics)

Input impedance [Ω]

Frequency [Hz]

Input impedance (example of typical characteristics)

Maximum input current [Arms]

Frequency [Hz]

Frequency derating (example of typical characteristics)

Gain [dB]

Frequency [Hz]

Frequency characteristics (example of typical characteristics)

Input impedance [Ω]

Frequency [Hz]

Input impedance (example of typical characteristics)

CT6710

Product warranty period: 1 year

Guaranteed accuracy period: 1 year

Rated current* (3 ranges)

Frequency band

Diameter of measurable conductors

*DC or sine wave signals of 45 to 66 Hz, within maximum peak current for each range *DC or sine wave signals of 45 to 66 Hz, within maximum peak current for each range

Rise time 7.0 ns or less (10% to 90%)
Output voltage 0.1 V/A (30 A range)

Maximum peak current ±50 A peak*

Noise 75 μArms or less*

*1: Maximum 2 sec input;

requires cooling time of at least 10 times longer than the time current has been input
*2: Does not apply to devices to which the probe is connected;
applicable in the 0.5 A range and when used with 20 MHz bandwidth instrument devices

Accuracy (amplitude)

Range Accuracy typical

30 A ±3.0% of reading ±1 mV ±1.0% of reading ±1 mV (≤ 10 A)

5 A ±3.0% of reading ±1 mV ±1.0% of reading ±1 mV

0.5 A ±3.0% of reading ±10 mV ±1.0% of reading ±10 mV

The accuracy above is valid within the following conditions:
Warm-up time: 30 minutes, operating environment of 23°C± 5°C (73°F ±9°F) at 80% RH or less, DC or
sine wave signals of 45 to 66 Hz, within maximum peak current for each range

30 Arms, 5 Arms, 0.5 Arms AC/DC

DC to 50 MHz (-3dB)

Max. φ 5 mm (0.20 in.) (insulated conductors)

1 V/A (5 A range)
10 V/A (0.5 A range)

±7.5 A peak (5 A range)
±0.75 A peak (0.5 A range, ≥ 10 MHz)
±0.3 A peak (0.5 A range, < 10 MHz)

1

(30 A range)

2

(typical: 60 μArms)

CT6711

Product warranty period: 1 year

Guaranteed accuracy period: 1 year

Rated current* (3 ranges)

Frequency band

Diameter of measurable conductors

Rise time 2.9 ns or less (10% to 90%)
Output voltage 0.1 V/A (30 A range)

Maximum peak current ±50 A peak*

Noise 75 μArms or less*

*1: Maximum 2 sec. input;

requires cooling time at least 10 times longer than the time current has been input
*2: Does not apply to devices to which the probe is connected;
applicable in the 0.5 A range and when used with 20 MHz bandwidth instrument devices

Accuracy (amplitude)

Range Accuracy typical

30 A ±3.0% of reading ±1 mV ±1.0% of reading ±1 mV (≤ 10 A)

5 A ±3.0% of reading ±1 mV ±1.0% of reading ±1 mV

0.5 A ±3.0% of reading ±10 mV ±1.0% of reading ±10 mV

The accuracy above is valid within the following conditions:
Warm-up time: 30 minutes, operating environment of 23°C± 5°C (73°F ±9°F) at 80% RH or less, DC or
sine wave signals of 45 to 66 Hz, within maximum peak current for each range

30 Arms, 5 Arms, 0.5 Arms AC/DC

DC to 120 MHz (-3dB)

Max. φ 5 mm (0.20 in.) (insulated conductors)

1 V/A (5 A range)
10 V/A (0.5 A range)

±7.5 A peak (5 A range)
±0.75 A peak (0.5 A range, ≥ 10 MHz)
±0.3 A peak (0.5 A range, < 10 MHz)

1

(30 A range)

2

(typical: 60 μArms)

35

30

25

20

15

10

5

0

DC

100 1k 10k 100k 1M 10M 100M 1G

30

20

10

0

-10

-20

-30

-40
DC

1

0.1

0.01

0.001
100 1k 10k 100k 1M 10M 100M 1G

0.5 A range

5 A range

30 A range

100 1k 10k 100k 1M 10M 100M 1G

30 A range
5 A range

A

= 23°C (73.4°F), sine wave

T

35

30

25

20

15

10

5

0

DC

100 1k 10k 100k 1M 10M 100M 1G

30

20

10

0

-10

-20

-30

-40
DC

1

0.1

0.01

0.001
100 1k 10k 100k 1M 10M 100M 1G

0.5 A range

5 A range

30 A range

100 1k 10k 100k 1M 10M 100M 1G

30 A range
5 A range

A

= 23°C (73.4°F), sine wave

T

Operating temperature
and humidity range

Storage temperature

and humidity range

Standards

Maximum rated power 7.8 VA (continuous maximum input)
Cable length Sensor/junction box: 1500 mm (59.06 in.)

Dimensions Sensor: 155 mm (6.10 in.) W × 18 mm (0.71 in.) H ×

Weight Approx. 370 g (13.1 oz.)

0°C to 40°C (32°F to 104°F),
80% RH or less (no condensation)

-10°C to 50°C (14°F to 122°F),
80% RH or less (no condensation)

Safety: EN 61010, EMC: EN 61326

Junction box/termination unit: 150 mm (5.91 in.)
Power cord: 1000 mm (39.37 in.)

26 mm (1.02 in.) D
Junction box: 45 mm (1.77 in.) W × 120 mm (4.72
in.) H × 25 mm (0.98 in.) D
Termination unit: 29 mm (1.14 in.) W × 83 mm (3.27
in.) H × 40 mm (1.57 in.) D
(excluding BNC connector or protrusions)

Operating temperature
and humidity range

Storage temperature

and humidity range

0°C to 40°C (32°F to 104°F),
80% RH or less (no condensation)

-10°C to 50°C (14°F to 122°F),
80% RH or less (no condensation)

Standards Safety: EN 61010, EMC: EN 61326

Maximum rated power 7.8 VA (continuous maximum input)
Cable length Sensor/junction box: 1500 mm (59.06 in.)

Junction box/termination unit: 150 mm (5.91 in.)
Power cord: 1000 mm (39.37 in.)

Dimensions Sensor: 155 mm (6.10 in.) W × 18 mm (0.71 in.) H ×

26 mm (1.02 in.) D
Junction box: 45 mm (1.77 in.) W × 120 mm (4.72
in.) H × 25 mm (0.98 in.) D
Termination unit: 29 mm (1.14 in.) W × 83 mm (3.27
in.) H × 40 mm (1.57 in.) D
(excluding BNC connector or protrusions)

Weight Approx. 370 g (13.1 oz.)

29

Maximum input current [Arms]

Frequency [Hz]

Frequency derating

Gain [dB]

Frequency [Hz]

Frequency characteristics (example of typical characteristics)

Input impedance [Ω]

Frequency [Hz]

Input impedance (example of typical characteristics)

Maximum input current [Arms]

Frequency [Hz]

Frequency derating

Gain [dB]

Frequency [Hz]

Frequency characteristics (example of typical characteristics)

Input impedance [Ω]

Frequency [Hz]

Input impedance (example of typical characteristics)

CT6700

Product warranty period: 1 year

Guaranteed accuracy period: 1 year

Rated current*

Frequency band

Diameter of measurable conductors

Rise time 7.0 ns or less (10% to 90%)
Output voltage

Maximum peak current

Noise 75 μArms or less* (typical: 60 μA rms)

*Does not apply to devices to which the probe is connected;
applicable when used with 30 MHz bandwidth instrument devices

Accuracy (amplitude)

Accuracy typical

±3.0% of reading ±1 mV ±1.0% of reading ±1 mV

The accuracy above is valid within the following conditions:
Warm-up time: 30 minutes, operating environment of 23°C± 5°C (73°F ±9°F) at 80% RH or less, DC or
sine wave signals of 45 to 66 Hz, 0 Arms to 5 Arms

5

4

3

2

1

0

DC

100 1k 10k 100k 1M 10M 100M 1G

5 Arms

DC to 50 MHz (-3dB)

Max. φ 5 mm (0.20 in.) (insulated conductors)

1 V/A
±7.5 A peak (non-continuous)

CT6701

Product warranty period: 1 year

Guaranteed accuracy period: 1 year

Rated current*

Frequency band

Diameter of measurable conductors

*DC or sine wave signals of 45 to 66 Hz, within maximum peak current for each range*DC or sine wave signals of 45 to 66 Hz, within maximum peak current for each range

Rise time 2.9 ns or less (10% to 90%)
Output voltage

Maximum peak current

Noise 75 μArms or less* (typical: 60 μA rms)

*Does not apply to devices to which the probe is connected;
applicable when used with 30 MHz bandwidth instrument devices

Accuracy (amplitude)

Accuracy typical

±3.0% of reading ±1 mV ±1.0% of reading ±1 mV

The accuracy above is valid within the following conditions:
Warm-up time: 30 minutes, operating environment of 23°C± 5°C (73°F ±9°F) at 80% RH or less, DC or
sine wave signals of 45 to 66 Hz, 0 Arms to 5 Arms

5

4

3

2

1

0

DC

100 1k 10k 100k 1M 10M 100M 1G

5 Arms

DC to 120 MHz (-3dB)

Max. φ 5 mm (0.20 in.) (insulated conductors)

1 V/A
±7.5 A peak (non-continuous)

10

0

-10

-20

-30

-40

10

0.1

0.01

0.001

Operating temperature
and humidity range

Storage temperature

and humidity range

100 1k 10k 100k 1M 10M 100M 1G

DC

1

100 1k 10k 100k 1M 10M 100M 1G

0°C to 40°C (32°F to 104°F),
80% RH or less (no condensation)

-10°C to 50°C (14°F to 122°F),
80% RH or less (no condensation)

Standards Safety: EN 61010, EMC: EN 61326

Maximum rated power 3.2 VA (continuous maximum input)
Cable length Sensor cable: 1500 mm (59.06 in.)

Power cord: 1000 mm (39.37 in.)

Dimensions Sensor: 155 mm (6.10 in.) W × 18 mm (0.71 in.) H ×

26 mm (1.02 in.) D
Termination unit: 29 mm (1.14 in.) W × 83 mm (3.27
in.) H × 40 mm (1.57 in.) D
(excluding BNC connector or protrusions)

Weight Approx. 250 g (8.8 oz.)

10

0

-10

-20

-30

-40

10

0.1

0.01

0.001

Operating temperature
and humidity range

Storage temperature

and humidity range

100 1k 10k 100k 1M 10M 100M 1G

DC

1

100 1k 10k 100k 1M 10M 100M 1G

0°C to 40°C (32°F to 104°F),
80% RH or less (no condensation)

-10°C to 50°C (14°F to 122°F),
80% RH or less (no condensation)

Standards Safety: EN 61010, EMC: EN 61326

Maximum rated power 3.2 VA (continuous maximum input)
Cable length Sensor cable: 1500 mm (59.06 in.)

Power cord: 1000 mm (39.37 in.)

Dimensions Sensor: 155 mm (6.10 in.) W × 18 mm (0.71 in.) H ×

26 mm (1.02 in.) D
Termination unit: 29 mm (1.14 in.) W × 83 mm (3.27
in.) H × 40 mm (1.57 in.) D
(excluding BNC connector or protrusions)

Weight Approx. 250 g (8.8 oz.)

30

Maximum input current [Arms]

Frequency [Hz]

Frequency derating

Gain [dB]

Frequency [Hz]

Frequency characteristics (example of typical characteristics)

Input impedance [Ω]

Frequency [Hz]

Input impedance (example of typical characteristics)

Maximum input current [Arms]

Frequency [Hz]

Frequency derating

Gain [dB]

Frequency [Hz]

Frequency characteristics (example of typical characteristics)

Input impedance [Ω]

Frequency [Hz]

Input impedance (example of typical characteristics)

3273-50

Product warranty period: 1 year

Guaranteed accuracy period: 1 year

Rated current*

Frequency band

Diameter of measurable conductors

*Refer to the graph for frequency derating characteristics.

Rise time 7.0 ns or less
Output voltage

Maximum peak current

Noise

*Does not apply to devices to which the probe is connected;

applicable when used with 20 MHz bandwidth instrument devices

Accuracy (amplitude)

to 30 Arms to 50 A peak

±1.0% of reading ±1 mV ±2.0% of reading

The accuracy above is valid within the following conditions:
Warm-up time: 30 minutes, operating environment of 23°C± 5°C (73°F ±9°F) at 80% RH or less, DC or
sine wave signals of 45 to 66 Hz, 0 Arms to 5 Arms

30

25

20

15

10

5

0

DC

30 Arms

DC to 50 MHz (-3dB)

Max. φ 5 mm (0.20 in.) (insulated conductors)

0.1 V/A
50 A peak (non-continuous)

2.5 mArms or less*

10010 1k 10k 100k 1M 10M 100M

3276

Product warranty period: 1 year

Guaranteed accuracy period: 1 year

Rated current*

Frequency band

Diameter of measurable conductors

*Refer to the graph for frequency derating characteristics.

Rise time 3.5 ns or less
Output voltage

Maximum peak current

Noise

*Does not apply to devices to which the probe is connected;

applicable when used with 20 MHz bandwidth instrument devices

Accuracy (amplitude)

to 30 Arms to 50 A peak

±1.0% of reading ±1 mV ±2.0% of reading

The accuracy above is valid within the following conditions:
Warm-up time: 30 minutes, operating environment of 23°C± 5°C (73°F ±9°F) at 80% RH or less, DC or
sine wave signals of 45 to 66 Hz, 0 Arms to 5 Arms

30

25

20

15

10

5

0

DC

30 Arms

DC to 100 MHz (-3dB)

Max. φ 5 mm (0.20 in.) (insulated conductors)

0.1 V/A
50 A peak (non-continuous)

2.5 mArms or less*

10010 1k 10k 100k 1M 10M 100M

-10

-20

-30

-40

-50

-60

10

0.1

0.01

0.001

Operating temperature
and humidity range

Storage temperature

and humidity range

Standards

100 1k 10k 100k 1M 10M 100M 1G

DC

1

100 1k 10k 100k 1M 10M 100M 1G

0°C to 40°C (32°F to 104°F),
80% RH or less (no condensation)

-10°C to 50°C (14°F to 122°F),
80% RH or less (no condensation)

Safety: EN 61010, EMC: EN 61326

Maximum rated power 5.6 VA
Cable length Sensor cable: 1500 mm (59.06 in.)

Power cord: 1000 mm (39.37 in.)

Dimensions Sensor: 175 mm (6.89 in.) W × 18 mm (0.71 in.) H ×

40 mm (1.57 in.) D
Termination unit: 27 mm (1.06 in.) W × 55 mm (2.17
in.) H × 18 mm (0.71 in.) D
(excluding BNC connector or protrusions)

Weight

Approx. 230 g (8.1 oz)

-10

-20

-30

-40

-50

-60

10

0.1

0.01

0.001

Operating temperature
and humidity range

Storage temperature

and humidity range

Standards

100 1k 10k 100k 1M 10M 100M 1G

DC

1

100 1k 10k 100k 1M 10M 100M 1G

0°C to 40°C (32°F to 104°F),
80% RH or less (no condensation)

-10°C to 50°C (14°F to 122°F),
80% RH or less (no condensation)

Safety: EN 61010, EMC: EN 61326

Maximum rated power 5.3 VA
Cable length Sensor cable: 1500 mm (59.06 in.)

Power cord: 1000 mm (39.37 in.)

Dimensions Sensor: 175 mm (6.89 in.) W × 18 mm (0.71 in.) H ×

40 mm (1.57 in.) D
Termination unit: 27 mm (1.06 in.) W × 55 mm (2.17
in.) H × 18 mm (0.71 in.) D
(excluding BNC connector or protrusions)

Weight

Approx. 240 g (8.5 oz)

31

Maximum input current [Arms]

Frequency [Hz]

Frequency derating

Gain [dB]

Frequency [Hz]

Frequency characteristics (example of typical characteristics)

Input impedance [Ω]

Frequency [Hz]

Input impedance (example of typical characteristics)

Maximum input current [Arms]

Frequency [Hz]

Frequency derating

Gain [dB]

Frequency [Hz]

Frequency characteristics (example of typical characteristics)

Input impedance [Ω]

Frequency [Hz]

Input impedance (example of typical characteristics)

3274

Product warranty period: 1 year

Guaranteed accuracy period: 1 year

Rated current*

Frequency band

Diameter of measurable conductors

*The accuracy above is valid within the following conditions:
DC or sine wave signals of 45 to 66 Hz, within maximum peak current for each range

Rise time

Output voltage

Maximum peak current

Noise

*1: 500 Apeak with pulse width ≤ 30 μs
*2: Does not apply to devices to which the probe is connected;

when used with a 20 MHz bandwidth instrument devices

Accuracy (amplitude)

to 150 A to 300 A peak

±1.0% of reading ±1 mV ±2.0% of reading

The accuracy above is valid within the following conditions:
Warm-up time: 30 minutes, operating environment of 23°C± 5°C (73°F ±9°F) at 80% RH or less, DC or
sine wave signals of 45 to 66 Hz

150

100

50

0

DC

150 Arms

DC to 10 MHz (-3dB)

Max. φ 20 mm (0.79 in)(insulated conductors)

35 ns or less

0.01 V/A
300 A peak (non-continuous)*
25 mArms or less*

10010 1k 10k 100k 1M 10M

2

1

3275

Product warranty period: 1 year

Guaranteed accuracy period: 1 year

Rated current*

Frequency band

Diameter of measurable conductors

*The accuracy above is valid within the following conditions:
DC or sine wave signals of 45 to 66 Hz, within maximum peak current for each range

Rise time

Output voltage

Maximum peak current

Noise

*Does not apply to devices to which the probe is connected;
when used with a 20 MHz bandwidth instrument devices

Accuracy (amplitude)

to 500 A to 700 A peak

±1.0% of reading ±5 mV ±2.0% of reading

The accuracy above is valid within the following conditions:
Warm-up time: 30 minutes, operating environment of 23°C± 5°C (73°F ±9°F) at 80% RH or less, DC or
sine wave signals of 45 to 66 Hz

500

100

0

DC

500 Arms

DC to 2 MHz (-3dB)

Max. φ 20 mm (0.79 in)(insulated conductors)

175 ns or less

0.01 V/A
700 A peak (non-continuous)
25 mArms or less*

10010 1k 10k 100k 1M 10M

-30

-40

-50

-60

-70

-80
DC

1k 10k 100k 1M 10M 100M

10

1

0.1

0.01

0.001
100 1k 10k 100k 1M 10M 100M 1G

Operating temperature
and humidity range

Storage temperature

and humidity range

Standards

0°C to 40°C (32°F to 104°F),
80% RH or less (no condensation)

-10°C to 50°C (14°F to 122°F),
80% RH or less (no condensation)

Safety: EN 61010, EMC: EN 61326

Maximum rated power 5.5 VA (continuous maximum input)
Cable length Sensor cable: 2000 mm (78.74 in.)

Power cord: 1000 mm (39.37 in.)

Dimensions Sensor: 176 mm (6.93 in.) W × 69 mm (2.72 in.) H ×

27 mm (1.06 in.) D
Termination unit: 27 mm (1.06 in.) W × 55 mm (2.17
in.) H × 18 mm (0.71 in.) D
(excluding BNC connector or protrusions)

Weight

Approx. 500 g (17.6 oz)

-30

-40

-50

-60

-70

-80
DC

10

1

0.1

0.01

0.001
100 1k 10k 100k 1M 10M 100M 1G

Operating temperature
and humidity range

Storage temperature

and humidity range

Standards

1k100 10k 100k 1M 10M 100M

0°C to 40°C (32°F to 104°F),
80% RH or less (no condensation)

-10°C to 50°C (14°F to 122°F),
80% RH or less (no condensation)

Safety: EN 61010, EMC: EN 61326

Maximum rated power 7.2 VA (continuous maximum input)
Cable length Sensor cable: 2000 mm (78.74 in.)

Power cord: 1000 mm (39.37 in.)

Dimensions Sensor: 176 mm (6.93 in.) W × 69 mm (2.72 in.) H ×

27 mm (1.06 in.) D
Termination unit: 27 mm (1.06 in.) W × 55 mm (2.17
in.) H × 18 mm (0.71 in.) D
(excluding BNC connector or protrusions)

Weight

Approx. 520 g (18.3 oz)

series_sensors_ probes_E3_22B

DISTRIBUTED BY

All in form ation co rrec t as of Feb. 8, 2022 . Conte nts are s ubject t o change w ithout n otice.

Note: Comp any na mes and p roduc t name s appea ring in t his bro chure a re trad emar ks or reg istered tra demarks of va riou s compa nies.

High-accuracy measurement (ME15W)

Pass-through types

Rated current

Frequency

range

CT6862-05 50 A DC to 1 MHz
CT6872 50 A DC to 10 MHz
CT6872-01 50 A DC to 10 MHz
CT6863-05 200 A DC to 500 kHz
CT6873 200 A DC to 10 MHz
CT6873-01 200 A DC to 10 MHz
CT6875A 500 A DC to 2 MHz
CT6875A-1 500 A DC to 1.5 MHz
CT6904A 500 A DC to 4 MHz
CT6904A-1 500 A DC to 2 MHz
CT6904A-2 800 A DC to 4 MHz
CT6904A-3 800 A DC to 2 MHz
CT6876A 1000 A DC to 1.5 MHz
CT6876A-1 1000 A DC to 1.2 MHz
CT6877A 2000 A DC to 1 MHz
CT6877A-1 2000 A DC to 1 MHz

Clamp types

Rated current

Frequency

range

9272-05 20 A, 200 A 1 Hz to 100 kHz
CT6841A 20 A DC to 2 MHz
CT6843A 200 A DC to 700 kHz
CT6844A 500 A DC to 500 kHz
CT6845A 500 A DC to 200 kHz
CT6846A 1000 A DC to 100 kHz

Direct-wired types

Rated current

Frequency

range

PW9100A-3 50 A DC to 3.5 MHz
PW9100A-4 50 A DC to 3.5 MHz

Connection options

CT9555
CT9556

CT9557

L9217
9165
CT9904
CT9901
CT9902

1 ch, external power supply, with waveform output function

1 ch, external power supply, with waveform/RMS output function

4 ch, external power supply, includes waveform/aggregated­waveform/aggregated-RMS output functions

Isolated BNC terminals

Metallic BNC terminals

Used with CT9557 added waveform output

Converts ME15W terminal to PL23 terminal

Used to extend cable length

Waveform observation (BNC)

High-sensitivity observation

Rated current

Frequency

range

CT6710 0.5 A, 5 A, 30 A DC to 50 MHz
CT6711 0.5 A, 5 A, 30 A DC to 120 MHz

Observation of minuscule currents

Rated current

Frequency

range

CT6700 5 A DC to 50 MHz
CT6701 5 A DC to 120 MHz

Observation of large currents

Rated current

Frequency

range

3273-50 30 A DC to 50 MHz
3276 30 A DC to 100 MHz
3274 150 A DC to 10 MHz
3275 500 A DC to 2 MHz

Connection options

3269
3272

4 ch, external power supply, total output 2.5 A

2 ch, external power supply, total output 600 mA

Grid power quality control (PL14)

Measurement of load current

Rated current

Frequency

range

CT7126 60 A 40 Hz to 2 kHz
CT7131 100 A 40 Hz to 2 kHz
CT7731 100 A DC to 5 kHz
CT7631 100 A DC to 10 kHz
CT7736 600 A DC to 5 kHz
CT7636 600 A DC to 10 kHz
CT7136 600 A 40 Hz to 5 kHz
CT7742 2000 A DC to 5 kHz
CT7642 2000 A DC to 10 kHz

Measurement of large currents

Rated current

Frequency

range

CT7044 6000 A 10 Hz to 50 kHz
CT7045 6000 A 10 Hz to 50 kHz
CT7046 6000 A 10 Hz to 50 kHz

Measurement of leakage current

Rated current

Frequency

range

CT7116 6 A 40 Hz to 5 kHz

Connection options

CT9920
L9095
L0220-01
L0220-02
L0220-03
L0220-04
L0220-05
L0220-06
L0220-07

Converts PL14 terminal to ME15W terminal

Connects CM7290, CM7291 and instrument

Extends a cable with a PL14 terminal, 2 m (6.56 ft.)

Extends a cable with a PL14 terminal, 5 m (16.40 ft.)

Extends a cable with a PL14 terminal, 10 m (32.81 ft.)

Extends a cable with a PL14 terminal, 20 m (65.62 ft.)

Extends a cable with a PL14 terminal, 30 m (98.43 ft.)

Extends a cable with a PL14 terminal, 50 m (164.04 ft.)

Extends a cable with a PL14 terminal, 100 m (328.08 ft.)

Grid power quality control (BNC)

Measurement of load current

Rated current

Frequency

range

9694 5 A 40 Hz to 5 kHz
9695-02 50 A 40 Hz to 5 kHz
9660 100 A 40 Hz to 5 kHz
9695-03 100 A 40 Hz to 5 kHz
9010-50 10 A - 500 A*
9018-50 10 A - 500 A*
9132-50 20 A - 1000 A*

1

1

2

40 Hz to 1 kHz
40 Hz to 3 kHz

40 Hz to 1 kHz
CT6500 500 A 40 Hz to 1 kHz
9661 500 A 40 Hz to 5 kHz
9669 1000 A 40 Hz to 5 kHz

Measurement of large currents

Rated current

Frequency

range

CT9667-01 500 A, 5000 A 10 Hz to 20 kHz
CT9667-02 500 A, 5000 A 10 Hz to 20 kHz
CT9667-03 500 A, 5000 A 10 Hz to 20 kHz

Measurement of leakage current

Rated current

Frequency

range

9657-10 10 A 40 Hz to 5 kHz
9675 10 A 40 Hz to 5 kHz

Connection options

9219
L9910
9704

*1: Can switch between ranges (10, 20, 50, 100, 200, 500 A AC )
*2: Can switch between ranges (20, 50, 100, 200, 500, 1000 A AC )

Converts crimped terminal to BNC terminal

Converts BNC terminal to PL14 terminal

Converts BNC terminal to banana terminal

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