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The MN255 is a high sensitivity probe with voltage outputs (100mV/A and 10mV/A) and combine two switch-selectable ranges of 20A and 200A, thus permitting accurate measurements at low and high levels. The MN255 has integral 5 ft (1.5m) leads terminated by shrouded banana plugs.
| ELECTRICAL | |
| Nominal Range | 20A & 200A |
| Measurement Range | 0.5 to 240A |
| Transformation Ratio | Voltage output |
| Output Signal | 20A: 100mV/A, 200A: 10mV/A |
| Accuracy (20A Range) | 1.0% of Reading ± 50mV |
| Phase Shift (20A Range) | Not Specified |
| Overload (20A Range) | 24A for 10 min ON, 30 min OFF |
| Accuracy (200A Range) | |
| 0.5 to 10A | 3.0% of Reading ± 5mV |
| 10 to 40A | 2.5% of Reading ± 5mV |
| 40 to 100A | 2.0% of Reading ± 5mV |
| 100 to 240A | 1.0% of Reading ± 5mV |
Phase Shift (200A Range) 0.5 to 10A |
Not Specified |
| Overload (200A Range) | 240A for 10 min ON, 30 min OFF |
| Frequency Range | 40 to 10kHz |
| Limit Operating Conditions | 200A permanently to 1kHz; Derating above 3kHz: 200A x (1/0.333F), F in kHz |
| Crest Factor | 3 @ 200Arms with an error (due to CF) of 4% |
| Working/Common Mode Voltage | 600Vrms |
| Output Termination | 5 ft Lead |
| MECHANICAL | |
| Operating Temperature | 14° to 131°F (-10° to 55°C) |
| Storage Temperature | -40° to 158°F (-40° to 70°C) |
| Operating Relative Humidity | 10 to 35°C 85% RH (without roll-off above 35°C) |
| Jaw Opening | 0.83" (21mm) |
| Maximum Conductor Size | 0.78" (20mm) |
| Dimensions | 5.47 x 2.00 x 1.18" (139 x 51 x 30mm) |
| Weight | 6.5 oz (180g) |
| Polycarbonate Material | Polycarbonate with fiberglass charge, UL94 V0 |
| SAFETY | |
| Electrical | EN 61010-2-32 |
| UL Approval | Yes – Canada and United States |
| Double Insulation | Yes |
| CE Mark | Yes |
Note: Reference conditions: 20 to 26°C, 20 to 75% RH, external magnetic field <40A/m, 48 to 65Hz sine wave, distortion factor less than 1%, no DC component, no external current carrying conductor, test sample centered. Load impedance >1Ω
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