Model 2644 3-Phase Monitor
The Model 2644 3-Phase Monitor provides essential protection for industrial systems. Designed for 380VAC, 50Hz applications, it detects phase loss, low voltage, and phase reversal, safeguarding critical equipment from operational damage. Its auto-reset functionality minimizes downtime, allowing for continuous operation without manual intervention after a fault clears. The adjustable response time, ranging from 0.2 to 20 seconds, enables precise tuning to specific application requirements, preventing nuisance trips while ensuring rapid fault detection. With DPDT 10 amp output contacts, the unit offers versatile control capabilities. A robust operating temperature range of -20° to +131° F ensures reliable performance in demanding environments. Furthermore, its repeat accuracy of ± 0.1% of setpoint guarantees consistent monitoring. UL Recognized and CSA Certified, the Model 2644 ensures compliance and operational integrity for various industrial setups.
3Ph Pwr Mon
Specifications
| Reset Type | Auto Reset |
|---|---|
| Nominal AC Voltage | 380VAC (phase to phase) |
| Adjustment Range | 300-400V |
| Frequency | 50Hz |
| Power Consumption | 4.5W |
| Function | Detects Phase Loss, Low Voltage and Phase Reversal |
| Warranty | 5 Year Unconditional Warranty |
| Transient Protection | 2500 VRMS for 10ms |
| Repeat Accuracy | ± 0.1% of setpoint (fixed conditions) |
| Response Time | Adjustable 0.2 to 20 seconds ±10% |
| Dead Band | Approximately 2% |
| Output Contacts | DPDT 10 amps at 240VAC resistive |
| Expected Relay Life, Mechanical | 10 million operations |
| Expected Relay Life, Electrical | 100,000 operations at rated load |
| Operating Temperature | -20° to +131° F |
| Humidity Tolerance | 0-97% w/o condensation |
| Enclosure Material | ABS plastic |
| Mounting | Surface |
| Agency Approvals | UL Recognized and CSA Certified |





