Patent ID: 7978033
Filing Date: 2011-07-12
Classification: H01H

Abstract:
1. A protection switch, comprising: at least one single-pole protection switch module including: a housing; a switching arm; a fixed contact; a moving contact carried by said switching arm and being pivotably movable against said fixed contact between a closed position and an open position; a manual operating mechanism for manually adjusting said switching arm between said closed position and said open position; said switching arm being spring-loaded in direction of said open position, and said switching arm including a latch lever to be latched to said manual operating mechanism, a contact lever carrying said moving contact, and a hinge, said latch lever being supported pivotably at said housing and connected with said contact lever through said hinge; and a tripping mechanism for automatically resetting said switching arm into said open position upon occurrence of a tripping condition, said tripping mechanism having a trip slider and a trip device for moving said trip slider from a ready position in direction of a tripping position, said trip slider loading said switching arm for rotationally fixing said contact lever in a position of said contact lever with respect to said housing.