A2644R-120V
The Model 2644 3-Phase Monitor provides essential protection for industrial systems. Its capability to detect phase loss, low voltage, and phase reversal safeguards critical equipment from electrical anomalies. With a nominal AC voltage of 120VAC (phase to phase) and an adjustment range of 85-120V, it offers adaptability for various application requirements. The unit features a restart delay of approximately 3.5 minutes, ensuring controlled system re-engagement. A response time adjustable from 0.2 to 20 seconds allows for precise control over fault reactions. DPDT 10 amp output contacts ensure reliable switching for connected loads. This monitor is designed for consistent performance in environments ranging from -20° to +131° F, supported by a 5-year unconditional warranty. Its robust design, precise monitoring capabilities, and transient protection of 2500 VRMS contribute to operational continuity and equipment longevity.
The Model 2644 3-Phase Monitor continuously monitors 3-phase Wye or
Delta systems for abnormal conditions. The solid-state electronic
sensing circuitry drives an internal DPDT relay, allowing the Model 2644
to operate two motor control circuits, or a control circuit and an alarm
circuit. An adjustable trip delay reduces or eliminates nuisance
tripping caused by momentary voltage fluctuations on motor start-up. An
optional restart delay gives approximately a 3.5-minute delay when the
relay drops out, to allow compressor head pressures to bleed off, in the
event of short-term power failures. Voltage adjustment ranges are
sufficiently wide to allow for proper calibration to existing
conditions. Both TRIP and NORM indicators are provided to aid in
adjustment and system troubleshooting. Automatic and manual reset
versions are available. The Model 2644 Monitor is not sensitive to line
current, and can be used with any size motor or compressor.
Out of stock
Specifications
| Reset Type | Restart Delay |
|---|---|
| Restart Delay Time | approximately 3.5 minutes |
| Nominal AC Voltage | 120VAC (phase to phase) |
| Adjustment Range | 85-120V |
| Frequency | 60Hz |
| Power Consumption | 0.75W |
| 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 |
