400A Automatic Generator Transfer Switch , 3 Poles Electrical Transfer Switch

400A 3 Poles Electrical Automatic Transfer Switch , Copper , Plated Tin , DMC V0 , Low Voltage Transfer Switch Introduction HGLD automatic change-over switch integrates switch andlogic control. Thus it is not necessary to provide external controller. This truly electrome mechanical intergrated automatic change-over switch has the follwing functions such as voltage detection, frequency detection, commu nication inte rface, electrical and mechanical inter interlocking etc., So,