The CTP series solenoid locking safety switch can be used to monitor the position of movable machine guarding by means of inductive coding. These safety systems are designed for use in areas where tamper-resistant safety is required. The product features a narrow profile, thermoplastic housing, an inductive read head with integrated evaluation module and a digitally coded actuator. It combines electromechanical safety-switch-operated guard locking or guard-lock monitoring with transponder-coded safety engineering. The transponder technology allows a single CTP to achieve Category 4 PLe, according to EN ISO 13849-1, without additional fault exclusion.