Guard locking principle

Power to unlock: On a guard with guard locking based on the closed-circuit current principle, the guard is locked by spring force until the guard locking solenoid is supplied with power. Unlocking is by solenoid force. The term mechanical guard locking is also used.

Guard locking for process protection

The safety switch meets the requirements for interlocking devices with guard locking for process protection. It does not possess safe guard lock monitoring.

Switching element

1211

Slow-action switching contact

Contacts for guard locking: 1 NC contact 1 NO contact

Contacts for door monitoring: 2 positively driven contacts + 1 NO contact