Thermal tripping device for use in e.g. line circuit breaker, has bimetallic strip or strip from shape memory alloy attached e.g. welded, with its fixed end at front edge that is formed by U-shaped bent or curve

摘要

The device has a bimetallic strip (61) or a strip from a shape memory alloy that is fixed at an end in a bimetal carrier (62). The carrier is fixed in recesses in a housing, and is connected with a connecting terminal and a supply line. A U-shaped bent or curve (66) is provided at the carrier, where a front edge is formed by the bent or curve, and the strip is attached e.g. welded, with its fixed end at the front edge.