... Transfer Switches YES1-125N 1) Rated current : 16-125A2) Pole number: 2p, 3p, 4p3) Rated working voltage: AC 240V/415V ... industry,metallurge industry,military and so on places IntroductionAutomatic switch and its corresponding intellectual displayer ,which are mainly used ... cannot be closed simultaneously. The position of both power supplies is in switch-off state designed with the isolation function. ...