The BRÜHL-HP-S® retaining plate system is supplemented with a handle set or a handle according to the access convenience and can be used for both left and right hinged doors. A mechanical stop in the aluminum profile prevents damage to the safety switch and actuator. The position of the safety switch depends on the door type and the sash travel. Retaining plate system BRÜHL-HP-S® can be easily combined with safety switches of type 2 (with or without solenoid interlock) and is offered by the manufacturers Bernstein, Comitronic-BTI, Euchner, Honeywell, Jakob Safety, Leuze electronic, Omron Electronics, Pilz, Rockwell Automation, Schmersal, Telemecanique Sensors, Sick and Siemens.