... 4)Remote control 0 position 1.Advantages of SLD switch:AC:50HZ Rated voltage:380V Rated voltage DC:220V ... )Adopt independency overload disconnect switch,makes more reliable and safety3)Can force to set 'zero' under emergency situation,meet the requirement of ... ,which transport,distribution power supply system and automatization system,for Fire Protection,Hospital,Bank,Building etc.2.Main Technical ...