EMERGENCY STOPPAGE DEVICE

摘要

The invention relates to a switching device, in particular an emergency stoppage switching device, comprising a first assembly and a second assembly (2) to be mounted on the first assembly (1). The switching device of the invention comprises means for checking that the second assembly (2) is securely attached onto the first assembly (1). Said means make it possible to maintain the controlled electric circuit in an open state as long as the first assembly (1) is mechanically disconnected from the second assembly (2). For this purpose, the pusher (4) is divided into two main portions (40, 41). The device further comprises a locking member (42) for keeping the second portion (41) assembled onto the first portion (40), and unlocking means for causing the locking member (42) to release the second portion (41) from the first portion (40) when the first assembly (1) is mechanically disconnected from the second assembly (2).