Product Description
Description: Phase Monitor Relays • Nominal voltage : 575 VAC • Adjustment Range: 450-575 V • Reset: Manual • Frequency: 60Hz • Power Consumption: 7.5W • Output Contacts : DPDT 10 amps at 240VAC resistive • Mounting : Surface
| Product Information | Resources |
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| Specifications |
| Product Attribute | Attribute Value |
| Nominal voltage | 575 VAC |
| Adjustment Range | 450-575 V |
| Reset | Manual |
| Frequency | 60Hz |
| Power Consumption | 7.5W |
| 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 Electrical: 100,000 operations at rated load |
| Operating Temp | - 20° to +131° F |
| Humidity Tolerance | 0 - 97% w/o condensation |
| Enclosure Material | ABS plastic |
| Mounting | Surface |
| Weight | 9.5 oz |
| Agency Approvals | All versions UL Recognized and CSA Certified |
| Series Features |
| MODEL 2644 3-Phase Monitor |
| Series Description: 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. |
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