Low voltage switching device with bimetal release for e.g. motor protection switch or power switch has calibration bridge system positioned between bimetal assembly

摘要

The switch has a housing (2) made from parts (21,22). A bimetal release (5) and a jack ratchet system are stored in the housing. A calibration bridge system (52) is positioned between a bimetal assembly (51). The housing has an inlet (23) that is lockable by a protection lid (24) that allows metrological accessibility of the bimetal assembly.