Omron D4NL Series Solenoid Interlock Switch, Power to Lock

This solenoid interlock switch is a guarded-door safety device designed to control access and permit secure operation in industrial environments. It operates on a 24V dc supply and is intended to Interface with machinery safety systems where controlled locking and unlocking of access points is required. The unit is housed in a plastic enclosure and features an ingress protection rating suitable for environments subject to dust and water exposure.

• 24Vdc supply enables integration with common control systems
• Power-to-lock operation allows secure door retention when energised
• IP67 rating protects internal components from dust and temporary immersion
• Screw Terminal connection simplifies on-site wiring and maintenance
• 0.2A contact current supports low-power safety signalling
• M20 conduit entry provides a standardised cable gland Interface

• Suitable for safety interlocks on guarded machinery enclosures
• Used with automated doors requiring electrically held locks
• Ideal for factory areas subject to washdown or moisture exposure
• Can be used for access control on processing lines
• Suitable for integration into plant safety circuits conforming to standards

The contact is rated for 24V DC at 0.2A and is intended for low-current signalling circuits.

Use the screw terminals for supply and signal wiring and route cables through the M20 conduit entry for strain relief.

The housing meets IP67 protection, providing resistance to dust ingress and temporary immersion.

When powered it performs a power-to-lock function, electrically retaining the actuator in the locked position.