3-Phase Monitor
The Model 246 3-Phase Monitor provides essential protection for industrial systems. This device continuously monitors for phase loss, phase reversal, low voltage, and over voltage conditions, ensuring operational integrity. Its automatic reset functionality minimizes downtime by restoring system operation without manual intervention once faults are cleared. With a nominal AC voltage of 120V and adjustable ranges for both low (85-125V) and high (110-140V) thresholds, it adapts to specific application requirements. The monitor features robust transient protection up to 2500V for 10ms, safeguarding against power disturbances. A repeat accuracy of ±0.1% of set point ensures consistent performance. Designed for reliability, it offers a mechanical relay life of 10 million operations and operates effectively across a wide temperature range from -20° to +131° F. This unit contributes to maintaining stable and protected three-phase electrical systems, enhancing equipment longevity and operational safety.
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Specifications
| Monitors for | Phase Loss or Reversal, Low and Over Voltage |
|---|---|
| Reset Type | Automatic |
| Agency Approval | CSA |
| Warranty | 5 Year Unconditional Warranty |
| Nominal AC Voltage | 120 |
| Adjustment Range (Low) | 85-125 V |
| Adjustment Range (High) | 110-140 V |
| Frequency | 60Hz |
| Power Consumption (per phase) | 1W |
| Transient Protection | 2500V for 10ms |
| Repeat Accuracy | ±0.1% of set point (fixed conditions) |
| Response/Reset Time | 50ms |
| Dead Band | 2% |
| Contact Rating | SPDT 10A at 240VAC resistive |
| Expected Relay Life (Mechanical) | 10 million operations |
| Expected Relay Life (Electrical) | 100,000 at rated load |
| Operating Temperature | -20° to +131° F |
| Humidity Tolerance | 0-97% w/o condensation |
| Enclosure Material | ABS plastic |
| Mounting | 8-pin socket *order separately |
| Max Input Voltage | 140VAC |
