Alternate Mfr Part Number98083702

Contact FormSPDT

Control Voltage208/240

Current Rating10 A

FunctionPhase Monitor

Measuring Range160-240 VAC

Monitoring FunctionPhase Monitor

Mounting TypeSocketable

Number of Pins8 Pin

Primary TypeMonitoring Relays

Product DescriptionContinuously monitors 3-phase power lines for abnormal conditions. When properly adjusted, the 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.

Product HeaderSolid State 3-Phase Monitor Relay

Relay TypeElectromechanical

Series257 Series

StandardsCSA, UL

Supply Voltage208-240 VAC

Termination8-Pin Octal

UPC Code662917001657

Voltage Rating240 VAC