SE-100T Series

Ground-Fault Relay Tester

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The SE-100T is a ground-fault-relay test unit designed to test the current pickup level of ground-fault protection.

The tester injects current through the window of installed ground-fault current transformers to verify the operation of ground-fault monitors and relays.

It is used on substations, motor control centers (MCCs), central distribution panels, switchboards, and test benches to verify relay operation.

The SE-100T tests the entire ground-fault circuit including current transformers, wiring, ground-fault relay and the operation of the interrupting device. It is recommended to test every relay and its current interrupting device annually.

Features & Benefits

  • Output Current Levels

    Low and high output levels to test a variety of relays

  • Remote Test Input

    Allows test to be initiated from another location

SE-100T Datasheet

SE-100T Manual


  • Input Voltage: 120 Vac, 60 Hz(1), 30 VA
  • Dimensions: H 150 mm (5.9”); W 109 mm (4.3”); D 100 mm (4.0”)
  • Output Current Levels: L0 = 0.65 ± 0.1 A HI = 2.75 ± 1.5A
  • Output Voltage: 6.3 VAC maximum
  • Approvals: CSA certified
  • Conformally Coated: Standard feature
  • Warranty: 5 Year
  • Mounting: Surface

Ordering Information

SE-100T120 VAC