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TIME MARK CORP A257B RELAY, SOLID STATE, 3-PHASE POWER MONITOR
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Manufactured By: TIME MARK CORP
Manufacturer Part Number: A257B
IMS Product Code: 1502233
Packaging: Sold Individually
Description:
Time Mark Corp A257B Relay, Solid State, 3-Phase Power Monitor
Continuously monitors 3-phase power lines for abnormal conditions. When properly adjusted, monitor will detect phase loss on a loaded motor even when regenerated voltage is present. This device consists of a solid-state voltage and phase-angle sensing circuit, driving an electromechanical relay. When correct voltage and phase rotation are applied, the internal relay will energize. A fault condition will de-energize the relay. When the fault is corrected, the monitor will automatically reset (a manual reset version is also available). Does not require a neutral connection and can be used with Wye or Delta systems. Voltage ranges are sufficiently wide to allow for proper adjustment to existing conditions. Both "TRIP" and "NORM" condition indicators are provided to aid an adjustment and system trouble-shooting.
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