Overview
Enviro Test Construct’s High Precision 100A Circuit Breaker Loop and Contact Resistance Tester is designed for accurate measurement of dynamic loop resistance and contact resistance in high-voltage circuit breakers, switches, and similar equipment. It provides dual current testing at 50 A or 100 A, ensuring reliable results across different operating conditions. With a resolution as fine as 0.1 μΩ and precision of ± (0.5% + 2 digits), this device is ideal for detecting even the smallest resistance changes. Its continuous measurement mode allows for efficient operation, while digital display ensures clear and accurate readings. Compact and robust, it is suitable for field applications as well as laboratory use in power systems testing and maintenance.
Features
- Dual test currents at 50 A or 100 A for versatile applications
- High precision with ± (0.5% + 2 digits) accuracy
- Ultra-fine resolution of 0.1 μΩ for detecting small resistance values
- Digital display for clear and reliable readings
- Continuous measurement mode for efficient testing
- Compact and portable design for field and lab use
Technical Specifications
| Current Test | 50 A or 100 A |
| Measuring Range | 0 mΩ to 100 mΩ (50 A), 0 mΩ to 50 mΩ (100 A) |
| Resolution | 0.1 μΩ (minimum) |
| Measurement Accuracy | ± (0.5% + 2 digits) |
| Power Consumption | 1000 W |
| Operating Power | AC 220 V ± 10%, 50 Hz |
| Relative Humidity | ≤ 90% |
| Operating Temperature | 32 °F to 104 °F (0 °C to 40 °C) |
| Dimensions | 13.98 in x 10.83 in x 5.79 in (355 mm x 275 mm x 147 mm) |
| Weight | 20.94 lb (9.5 kg) |
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