3-Phase Monitor with Line Voltage & Phase Sequence Indicator
The EX2638 3-Phase Monitor provides essential protection for industrial equipment operating on 380VAC, 50Hz systems. This device accurately detects critical anomalies such as phase loss, phase reversal, and low voltage conditions, safeguarding machinery from potential damage. Its automatic reset function ensures continuous operation following fault correction, minimizing downtime. With a rapid response time of 0.05 seconds and a repeat accuracy of ±0.1% under fixed conditions, the EX2638 offers precise and reliable monitoring. LED status indicators provide immediate visual feedback on system health. Designed for durability, it features a robust ABS plastic enclosure and operates effectively across a wide temperature range from -20° to +131° F. The unit's SPDT 10A output contacts at 240VAC resistive ensure compatibility with various control circuits. This monitor is engineered for long-term performance, supported by a 5-year unconditional warranty, providing a dependable solution for maintaining operational integrity.
3Ph Pwr Mon 50Hz
Specifications
| Feature | Detects Phase Loss, Phase Reversal and Low Voltage |
|---|---|
| Feature | LED Status Indicators |
| Feature | Automatic Reset |
| Warranty | 5 Year Unconditional Warranty |
| Nominal Voltage | 380VAC |
| Frequency | 50Hz |
| Adjustment Range | 300-400 |
| Power Consumption | 6.5W |
| Transient Protection | 2500V for 10ms |
| Repeat Accuracy | ±0.1% (fixed conditions) |
| Response Time | 0.05 seconds |
| Reset Time | 0.05 seconds |
| Reset Type | Automatic |
| Dead Band | Approximately 2% |
| Output Contacts | SPDT 10A 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 |





