Model 2644 3-Phase Monitor
The Model 2644 3-Phase Monitor provides essential protection for industrial systems. It reliably detects critical conditions such as phase loss, low voltage, and phase reversal, safeguarding connected equipment. Operating at a nominal 380VAC and 50Hz, this monitor offers an adjustable response time from 0.2 to 20 seconds, allowing for precise application tuning. Its DPDT 10 amp output contacts ensure robust control. Designed for durability, it functions across a wide operating temperature range of -20° to +131° F and tolerates 0-97% humidity without condensation. A 5-year warranty underscores its long-term operational reliability.
3Ph Power Mon
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Specifications
| Reset Type | Manual 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 |
FAQs
What are the primary voltage and frequency specifications for the Model 2644 3-Phase Monitor?
The Model 2644 3-Phase Monitor is designed for a nominal AC voltage of 380VAC (phase to phase) at a frequency of 50Hz. It features an adjustment range of 300-400V.
What types of electrical anomalies does the Model 2644 monitor detect, and what is its response capability?
This monitor detects phase loss, low voltage, and phase reversal. Its response time is adjustable from 0.2 to 20 seconds ±10%, and it includes transient protection up to 2500 VRMS for 10ms.
What are the durability and environmental specifications for the Model 2644 3-Phase Monitor?
The Model 2644 features an expected relay life of 10 million mechanical operations. It operates within a temperature range of -20° to +131° F and tolerates 0-97% humidity without condensation. It is backed by a 5-year unconditional warranty.





