Patent ID: 8604377
Filing Date: 2013-12-10
Classification: H01H,H02J

Abstract:
1. An automatic transfer switch alternatively supplying power from a commercial power terminal and an emergency power terminal to load terminals by moving a pair of movable contactors, wherein at least one of the pair of movable contactors is integrally formed with the commercial power terminal or the emergency power terminal through a wire made of a flexible material, wherein said automatic transfer switch further comprises an arc extinguishing chamber which comprises a plurality of grids which extinguish an arc generated when the pair of movable contactors are short-circuited with the load terminals, wherein the plurality of grids are formed to surround the movable contactors that vertically rotates, one side thereof is concaved, and the concaved inside thereof is eccentrically provided with a chute part, and wherein the plurality of grids are installed so that said chute part is disposed in a zigzag form.