Model 200 3-Phase Voltage Unbalance Monitor
The Model 200 3-Phase Voltage Unbalance Monitor (EX200) provides essential protection for industrial equipment. It precisely monitors 380VAC, 50Hz systems, detecting voltage unbalance between 2% and 10%. A rapid 100ms response time ensures prompt action against potentially damaging conditions. Its DPDT 10 amp contacts at 240VAC resistive facilitate reliable control. The unit operates effectively across a wide temperature range from -20° to +131° F, maintaining performance in diverse environments. This monitor contributes to extended machinery lifespan by mitigating risks associated with voltage irregularities, offering consistent operational stability. The automatic reset feature simplifies system recovery after fault conditions. With a repeat accuracy of ± 0.1%, the Model 200 delivers consistent monitoring performance. Its robust ABS plastic enclosure and transient protection up to 2500VRMS for 10ms enhance durability in demanding industrial settings.
3Ph Volt Unbal Mon
Specifications
| Nominal AC Voltages | 380VAC |
|---|---|
| Voltage Range | ± 15% |
| Frequency | 50Hz |
| Power Consumption (per phase) | 2W |
| Transient Protection | 2500VRMS for 10ms |
| Repeat Accuracy | ± 0.1% (fixed conditions) |
| Unbalance Adjustment | 2% to 10% |
| Response Time | 100ms |
| Reset Time | Fixed 1 sec |
| Dropout Time | Adjustable 0.2 to 20 seconds |
| Reset Type | Automatic |
| Dead Band | 0.5% max |
| Contact Rating | DPDT 10 amps at 240VAC resistive |
| Expected Relay Life (Mechanical) | 10 million operations |
| Expected Relay Life (Electrical) | 100,000 operations at rated load |
| Operating Temp | -20° to +131° F |
| Humidity Tolerance | 0-97% w/o condensation |
| Mounting | Surface |
| Enclosure Material | ABS plastic |
| Mounting Hole Diameter | 0.19 |





