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The JM813 is a high performance AC Current Probe with excellent transformation and low phase shift. The high quality magnetic core and uniform windings provide for accurate measurements up to 3600AAC. The "squared" jaw permits multiple conductor or bus bar positionings. Provide excellent TRMS capabilities and reliable signal reproduction.
| 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 | 600VAC |
| 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.
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