Omron D4BL Series Solenoid Interlock Switch, Power to Unlock, 24V dc

The Omron D4BL series Guard Lock Safety-door Switch has Mechanical lock. A mechanical lock is applied automatically when the Operation Key is inserted. A high level of safety is achieved using a mechanism where the lock is only released when voltage is applied to the solenoid.

2NC (slow-action) + 1NC (slow-action) contacts