... ,SURGE DIVERTER Can be replaced for the module not need power cut. Max discharge current Imax(8/20u OBV6- B, C series ... suitable for TT, IT, TN-S, TN-C-S etc. power supply system of AC50/60Hz, 380V, installed on the joint ... , the failure release will help electric device separate from the power system and give the indication signal, green means normal, red ...