Littelfuse - Earth Leakage Relay - 120V a.c/240V d.c - SE-703-OU-00

Features

• Adjustable pickup (25-500 mA): Adjustable trip setting provides a wide range of low-level protection and system coordination


• Adjustable time delay (INST-500 ms): Adjustable trip delay allows quick protection and system coordination


• Output contacts: Form A and Form B or 2 Form C ground-fault output contacts for operation of separate annunciation and trip circuits


• Analog output (0-5 V): Allows for connecting an optional meter (PGA-0500) or control system


• CT-Loop monitoring: Alarms when CT is not connected


• Contact operating mode: Fail-safe operating mode for under voltage applications, optional non-fail-safe mode available


• Harmonic filtering: Eliminates nuisance tripping


• Non-volatile trip memory: Retains trip state while de-energized to simplify troubleshooting


• Microprocessor based: No calibration required, saves maintenance cost


• Universal power supply: Allows operation in application where one side of PT is faulted, provides flexibility for numerous applications

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