The present invention relates to a rotary switch including a main contactor having a main contact carrier and a main cam, a shaft rotatably journaled in the main contactor and extending axially through the main contactor, an auxiliary contactor and an auxiliary cam. When the switch is rotated from the ON position to the OFF position, the shaft rotates and the auxiliary cam co-acts with the auxiliary contactor to break open auxiliary contacts before main contacts on the main contact carrier break open as the main contact carrier and the main cam are driven together axially upon further rotation of the shaft.
A ROTARY SWITCH
2020-07-23
Patent
Electronic Resource
English