The Omron D4BL-2CRA is a guard lock safety-door switch — a mechanical lock with a 24 VDC solenoid release, built for interlocking access doors on machinery where the guard must stay locked until the machine is safe to enter. It is low level coded per EN ISO 14119, meaning the actuator is a simple shape (not coded to a unique key pattern), and classified as Type 2 interlock — a standard choice for general guarding where a higher-coded actuator isn't mandated by the risk assessment. The built-in switch set gives you 1NC/1NO slow-action contacts for door open/closed detection plus a separate 1NC slow-action contact for lock monitoring — so you can wire the lock status and door position independently back to the safety PLC or relay.
Rated for 1,000,000 mechanical operations and 500,000 electrical operations at 10 A resistive, 250 VAC — that electrical endurance covers most control-circuit loads on a packaging or material-handling line, but if you're switching a high-inrush solenoid or motor contactor coil, expect reduced life. IP67 per EN 60947-5-1 means the housing and head seal against dust and temporary immersion — fine for washdown zones in food processing or outdoor conveyor gantries, but not rated for high-pressure spray or continuous submersion. Operating speed range of 0.05 to 0.5 m/s and a maximum operating frequency of 30 operations/minute — the actuator must engage within that speed window for the latch to catch reliably; a fast-moving door may need a different head or a cam profile.
The head can be mounted in four directions (right-side mounting at shipping), and the conduit outlet is G1/2 — two conduit entries, so you can bring in the solenoid power and the switch wiring through separate glands. No indicator light on this variant — the blank indicator means no visual status LED; if you need a door-locked lamp at the panel, spec the D4BL-2CRA with the indicator option or add an external pilot light.