AEMC JM813 Data sheet

AC Current Probes Model JM813 (pdf) 10/05 Rev. 03

Technical Assistance [phone] www.aemc.com1of 4

AC Current Probe
Model JM813

The Model JM813 is a high
performance AC current probe for
higher currents. Excellent transformation
and low phase shift, plus a broad
frequency response, permit accurate
measurements of current and power.
The high quality magnetic cores and
uniform windings provide for accurate
measurements up to 3600A

AC.

The “squared” jaw permits multiple
conductor or bus bar positioning.
The Model JM813 provides excellent
True RMS capabilities and reliable
signal reproduction.

The Model JM813 works as a tradi­tional current transformer providing
current outputs (mA) over a broad
range of transformation ratios. The
Model JM813 is designed for use on
DMMs, power and harmonic meters,
recorders or instruments with AC
current ranges.

Features

• Nominal range: up to 3000AAC

(continuous cycle for the full
temperature range)

• Transformation ratio: 3000:3

• Output: 1mA/A

• Designed for use on DMMs, power

and harmonic meters, recorders or

instruments with AC current ranges

Applications

• Field testing

• Electrical utility

• HVAC

• Industrial maintenance

• Laboratory

• Plant maintenance

AC Current Probes Model JM813 (pdf) 10/05 Rev. 03

Technical Assistance [phone] www.aemc.com2of 4

Specifications

MODEL JM813

ELECTRICAL

Nominal Range 3000A
Measurement Range 1 to 3600A
Transformation Ratio 3000:3
Output Signal 1mAAC/AAC (3A @ 3000A)
Accuracy (1000A Range)

150A 1.5% of Reading
600A 0.75% of Reading

3000A 0.5% of Reading

Phase Shift (1000A Range)

150A 1.5°
600A 0.75°

3000A 0.5°

Overload 3600A for 5 min
Frequency Range 30Hz to 5kHz; current

derating above 1kHz

for continuous use

Load Impedance ≤0.6Ω
Working/Common

Mode Voltage

600V

AC

Output Termination 5 ft Lead

MECHANICAL

Operating Temperature 14° to 122°F (-10° to 50°C)
Storage Temperature -13° to 176°F (-25° to 80°C)
Jaw Opening 3.54" (90mm)
Maximum Conductor Size Cable: 2.52" Ø max (64mm); Bus bar: 1.97 x 5.31" (50 x 135mm); 2.52 x 3.94" (64 x 100mm)
Dimensions 4.72 x 12.40 x 1.89" (120 x 315 x 48mm)
Weight 2.65 lbs (1200g)
Polycarbonate Material Handles: 10% fiberglass charged polycarbonate UL94 VO; Jaws: ABS UL V2

SAFETY

Electrical EN 61010-2-32

Double Insulation Yes

CE Mark Yes

Note: Reference conditions:

23°C ± 3°K, 20 to 85% RH, 48 to 65Hz, external magnetic field <40A/m, no DC component, no external current carrying conductor,
test sample centered. Load impedance 0.55Ω.