Main function:
(1) Protection of lethal electric shocks to the users
(2) Protection for the electrical fire LED by the damage of the insulator and/or ground-fault current
(3) Its derivative items have the over-load protection again burn-out of the electric equipment

Usage:
Widely used for the protection of the leakage, electric shock and overload in the electric machine such as the electric water-heater, solar water-heater, vending machine, water dispenser refrigerator and washing machine etc.