1High sensitivity 2Steady and reliable output voltage 3PCB mounting 4Various choices for different specifications GFCI differential core:ZCT101 --to test the differential current caused by ground fault.Material-80% Ni permalloyGNT101--to test the overload current caused by arc fault.Material: Ferrite.The assembly of ZCT101 and GNT101 are mainly applied to GFCI plugs, breakers. ZCT101&GNT101 GFCI ...