Amprobe ALC-110 Specifications

ALC-110

Leakage Current Clamp

Prevent unplanned downtime by detecting leakage currents with the ALC-110 Leakage Current Clamp. Rated CAT III 600 V to ensure electrical safety, the ALC-110 is designed to resist external magnetic ﬁelds for highly accurate readings.

Features

• Low influence of external low frequency

magnetic fields: @ I

≤ 30 A/m, operating class 2

• True-rms measurements for accuracy when

measuring complex, non-sinusoidal waveforms

• Mechanical jaw lock to assure accuracy of low

current measurements, avoiding disturbance from measured wires and magnetic fields; jaw opening 1.2 in (30 mm)

• Highest resolution of 0.001 mA,

measure up to 60 A

• Broad frequency range 15 Hz to 1 kHz for

a variety of different applications, including industrial and railway

• Selectable filters:

- Low Pass 50/60Hz filter to perform measurements on equipment driven by Variable Frequency Drives (VFDs) or affected by high

frequency noise

- Appliance Filter to conduct leakage current

measurements on appliances

- No filter

• Selectable limits:

0.25 mA, 0.5 mA, 3.5 mA, 10 mA, 12 mA

• Max readings and hold function

• High safety rating: CAT III 600 V

• Battery-saving design with an auto backlight off

and auto power off

N: 3.500 mA – 600.0 mA

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Mechanical jaw lock for high accuracy readings

Finger guard for safe usage

Robust, strong rubber housing for easy grip

Large digital display with bar graph and ﬁlter function

Applications

• Measure:

- Earth and differential leakage currents

- Leakage currents through the earth (PE) conductor

- Appliance current consumption without interruptions to the circuit

• Trace the source of earth leakage current

• Identify intermittent GFCI trips without

switching equipment off

• Check a system for an electrical break of

insulation where current is flowing to the ground

• Where industrial leakage current testing is required

Electrical

ALC-110

Safety

Leakage Current Clamp

Safety Certification

All Amprobe tools, including the Amprobe ALC-110, are rigorously tested for safety, accuracy, reliability, and ruggedness in our state-of-the-art test lab. In addition, Amprobe products that measure electricity are listed by a

3rd party safety lab, either UL or CSA. This system assures that Amprobe products meet or exceed safety regulations and will perform in a tough, professional environment for many years to come.

Specifications

Features ALC-110

Complies with IEC/EN 61557-13 •

Built according IEC/EN 61010-2-032 •

Low frequency magnetic ﬁelds ≤ 30 A/m, operating class 2 @ I

Safety, measurement category CAT III 600 V

True-rms •

AC frequency 15 Hz to 1 kHz

Low pass ﬁlter 50 Hz to 60 Hz, for appliance measuring acc. EN61557-16 amendment A, no ﬁlter

Limit judgement 0.25 mA, 0.5 mA, 3.5 mA, 10 mA, 12 mA

Jaw opening 1.2 in (30 mm) max.

Jaw locking •

Data hold •

Backlight function •

Overload protection 60 A

Auto power off Idle 20 minutes

Auto ranging •

Max hold •

AC current

[1]

Add 4.0% for C.F. 2.5 to 3.0. Position error of clamp: +/- 1% of LCD reading.

[2]

[3]

[1] [2] [3]

Range Resolution

6.000 mA 0.001 mA ±(5.0%+5D) ±(2.0%+5D) ±(1.0%+5D) ±(2.0%+5D)

60.00 mA 0.01 mA ±(5.0%+5D) ±(2.0%+5D) ±(1.0%+5D) ±(2.0%+5D)

600.0 mA 0.1 mA ±(5.0%+5D) ±(2.0%+5D) ±(1.0%+5D) ±(2.0%+5D)

6.000 A 0.001 A Unspeciﬁed ±(2.0%+5D) ±(1.0%+5D) ±(2.0%+5D)

60.00 A 0.01 A Unspeciﬁed ±(2.0%+5D) ±(1.0%+5D) ±(2.0%+5D)

Crest Factor (C.F.) may be up to 3.0 as 3000 counts. For non-sinusoidal waveforms: Add 1.0% for C.F. 1.0 to 2.0 / Add 2.5% for C.F. 2.0 to 2.5 /

Minimum reading is 0.010 mA. When operating in magnetic ﬁelds up to ≤ 30 A/m, add ±0.3 mA error to accuracy.

15 Hz to 40 Hz > 40 Hz to 50 Hz > 50 Hz to 60 Hz > 60 Hz to 1 kHz

N : 3.500 mA to 600.0 mA / 40 Hz to 1 kHz

Accuracy

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General Speciﬁcations

Display Digital: 6000 counts, updates 5/sec

Range Auto ranging

Over range indication OL or -OL

Operating temperature

Operating altitude ≤ 2000 m

Storage temperature -4 °F to 140 °F (-20 °C to 60 °C)

Pollution degree 2

Temperature coefﬁcient 0.1 x (speciﬁed accuracy) / °C (<21 °C, >25 °C)

Vibration requirement acc. IEC 61557-1 clause 4.10

Drop proof 4 ft (1.2 m)

Battery 2 x batteries 1.5 V IEC LR03 AAA

Battery life 60 hours typical

Low battery indication

Safety compliance IEC/EN 61010-1, IEC/EN 61010-2-032, IEC/EN 61557-13

EMC compliance IEC/EN 61326-1, IEC/EN 61326-2-2

Agency approvals

Dimensions (H x W x L) 8.7 x 3.5 x 1.8 in (221 x 89 x 48 mm)

Weight 0.9 lb (410 g) with batteries installed

Included: 2 x AAA batteries, soft carrying case and user manual

32 °F to 86 °F (0 °C to 30 °C), ≤ 80% RH

86 °F to 104 °F (30 °C to 40 °C), ≤ 75% RH

104 °F to 122 °F (40 °C to 50 °C), ≤ 45% RH