Patent ID: 7876192
Filing Date: 2011-01-25
Classification: H01H

Abstract:
1. A thermal and/or magnetic overload trip device for an electrical switching device having multiple poles, the overload trip device comprising: a housing including an electrically insulating material and having a one-part cup-shaped housing member, the housing member having a top wall, a bottom wall, a rear wall, a first side wall, and a second side wall, the housing member being configured to receive a plurality of functional elements and being at least partially closable at a front thereof via a detachable cover member configured to slidably engage the housing member via a snap-in arrangement; a conductor strap associated with each of the multiple poles, each conductor strap being disposed in a respectively associated chamber-like housing portion; a rotatable trip shaft associated with the conductor straps and configured to rotate about a first axis of rotation between a rest position and an actuating position, when at least one of a presettable thermal threshold and a presettable magnetic threshold is reached, so as to trip an associated switching mechanism; and at least one rotatable adjusting element disposed in the top wall of the housing member and configured to set the at least one of the presettable thermal threshold and the presettable magnetic threshold, the adjusting element being rotatable about a second axis of rotation perpendicular to the first axis of rotation, wherein the housing member is configured so that the plurality of functional elements is insertable therein through the front of the housing member and is couplable to at least one of the walls of the housing member, and wherein the rotatable trip shaft is rotatably supported by a first bearing point disposed in the first side wall of the housing member and a second bearing point disposed in the second side wall of the housing member.