Fire prevention fire alarm manual switch having sensitive element plate with mechanical elements setting off electrical circuit and drive unit distinct sensitive plate drive providing trial function.

摘要

The manual switch has a front face (3) with an opening for a sensitive element plate (8), which sets off mechanical units (21,25) setting off an electrical circuit (13). There is a drive unit (26,33) which is accessible from outside and distinct from the sensitive plate drive. The drive function provides a trial function without pushing the sensitive element.