It is a device that integrally assembles switchgear, trip device, etc. into an insulation container that can open and close a energized circuit manually or electrically, and automatically cuts off current in the event of overload, disconnection, and short circuit.

Permalloy (Ni80% alloy) with good investment rate is processed and heat treated to be used as ZCT (image transformer) CORE for ELCB, GFCI, and AFCI