These are in compliance with the standards of IEC1008-1 and GB16916.1-1997. Applied to the circuit of AC 50/60Hz, 1P 240V, 3P4 15V, these are mainly used for preventing electric fire and personal casual accidents caused by personal electric shock or leakage. They act as current-operated and fast leakage protectors of pure electromagnetic types. These can break off fault circuit rapidly for avoiding occurrence of accidents. The function of switch won't be influenced by ambient temperature and lighting.
The specifications are as follows: