Guard lock, Solenoid interlock electromechanical

Electromechanical solenoid interlocks prevent unauthorized opening of accesses and safety guards

Solenoid interlocks of the SAFEMASTER STS family combine the functional principle and the advantages of electromechanical safety switches with a 2-channel guard locking function. Guard locking ensures that rotating, removable or laterally movable protective devices such as safety guards, hoods, protective grids remain closed as long as a dangerous condition or risk of injury to persons exists. This includes, for example, safety applications with overtravel movements of a machine or system in which, for example, high temperatures or pressure prevail.

However, solenoid interlocks are also used in process protection where opening of the safety guard is not desired, such as unauthorized interference in the production process. Electromechanical solenoid interlocks act together as a link between the higher-level control system (PLC) and safety relay devices such as standstill and speed monitoring or safety time relays. In addition, different coding levels, very high locking forces and extensive diagnostic options enable use in almost any safety-relevant application.