Electrical apparatus to be snapped on a rail

摘要

The electrical equipment mounting has a compression spring (20) inside the rail, parallel to the direction of the rail, to retain the mounted equipment. The spring is inserted in an opening (16) at the end of the rail, and displaces a flexible tongue (23). Once the spring has past, the tongue springs inward and a lip (28) at the end of the tongue fits over the end of the spring.