Patent ID: 8310323

Claim:
An electromagnetic switch including: an exciting coil which generates magnetomotive force by being energized; a movable contact driven by the magnetomotive force of the exciting coil; a pair of fixed contacts placed opposite of the movable contact; a contact cover of a bottomed shape having a contact chamber provided therein, and containing the movable contact and the pair of fixed contacts; tubular members fitted into respective terminal holes formed in the bottom of the contact cover; terminal bolts inserted in respective tubular members and conducted with the pair of fixed contacts respectively; sealing members sealing respective gaps between the terminal holes and the terminal bolts; and tightening members screwed on respective male screws of the terminal bolts, so as to fix ring terminals to the terminal bolts respectively, wherein: the terminal bolts have locking parts projected in the direction of their outer diameter, one end at the contact chamber side of the tubular members abut against the locking parts, the sealing members are engaged closer to the contact chamber side than the locking parts of the terminal bolts are, and a locking member is provided separately from the terminal bolt.