| 摘要 |
An electrical switching device with a quick-action fastening apparatus is disclosed for snapping the switching device onto a top-hat mounting rail in a service distribution panel. The quick-action fastening apparatus comprising at least one movable tab, which is associated with the fastening face of the switching device housing by means of at least one connecting part, which is integrally formed in one piece with the switching device housing, and in the state in which it is snapped onto the top-hat mounting rail, engages behind a longitudinal edge of the top-hat mounting rail, the connecting part being spring-elastic and being made from a material which has different mechanical properties than the housing material.
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