AEMC SR651 Data sheet

AC Current Probe Model SR651

The Model SR651 is designed for use
in industrial and utility environments.
The unique ergonomic design allows it
to easily clamp onto cables or small
bus bars. It is built to the highest safety
and performance standards including
the CE Mark and is UL approved for
Canada and United States.

Excellent transformation and low
phase shift, plus a broad frequency
response, permit accurate measure­ments of current for power and power
quality measurements. The high
quality magnetic cores and uniform
windings provide sensitivity for very
low level current measurements, as
well as measurements up to 1200A
The Model SR651 provides an
accurate voltage output of 1mV/A.
This voltage output enables
instruments without current ranges to
measure, display log currents through
an AC voltage range or measure very
low AC.

a c .

Features

• Measurement range of

100mA to 1200A

• Large jaw opening accommodates

conductors up to two 500MCM
conductors

• Ergonomic design and easy

operation

• Conforms to EN 61010, 600V Cat. III

safety standard

• Low phase shift for power

measurements

• Available with mV output signals

• Designed for DMMs, recorders,

loggers, oscilloscopes, power and
harmonic meters

• ULapprovedforCanadaand
United States

• DoubleInsulation

• CE Mark

a c

Applications

• Power quality measuring

• Low industrial loads

• Measuring around cable bundles

• Power load monitoring

• Waveform analysis

SR651_211345 (pdf) 0308 Rev. 05

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Specifications

MODEL SR651

ELECTRICAL

Nominal Range 1000A
Measurement Range 0.1 to 1200A
Transformation Ratio Voltage output
Output Signal 1mV/A
Accuracy (1000A Range)

1 to 50A ≤3% ± 0.1A
50 to 200A 1.5% of Reading
200 to 1000A 0.75% of Reading
1000 to 1200A 0.5% of Reading
Phase Shift (1000A Range)

50 to 200A 1.5°
200 to 1000A 0.75°
1000 to 1200A 0.5°

Overload 1200A for 40 min ON, 20 min OFF
Frequency Range 30Hz to 5kHz; current derating above 1kHz using the formula: 1000A x 1/F (in kHz)
Load Impedance 100kΩ min
Working/Common

Mode Voltage:
Output Termination Jack

MECHANICAL

Operating Temperature -14° to 122°F (-10° to 50°C)
Storage Temperature -4° to 158°F (-20° to 70°C)
Operating Relative

Humidity
Jaw Opening 2.25" (57mm) max

Maximum Conductor Size 2.05" (52mm)
Maximum Bus Bar Size One 1.95 x 0.19" (50 x 5mm)

Dimensions 4.37 x 8.50 x 1.77" (111 x 216 x 45mm)
Weight 1.21 lbs (550g)

Polycarbonate Material Handles: Polycarbonate + ABS, Gray, UL94 V0. Jaws: Polycarbonate, Red, UL94 V0

SAFETY

Electrical EN 61010-2-032

UL Approval Yes – Canada and United States
Double Insulation Yes

CE Mark Yes

Note: Reference conditions:

23 ± 3°K, 20 to 75% RH, 48 to 65Hz, external magnetic field <40A/m, no DC component, no external current carrying conductor,
test sample centered. Load impedance 1Ω.

a c /Aa c (1Va c @ 1000A)

600V Cat. III

0 to 85% @ 35°C

SR651_211345 (pdf) 0308 Rev. 05

Technical Assistance [phone] www.aemc.com 2 of 4