Omron D4NL Series Solenoid Interlock Switch, Power to Lock

Omron D4NL Series Solenoid Interlock Switch, 24V DC Supply Voltage, IP67 - D4NL-4DFG-B

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.

Features and Benefits:

• 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

Applications

• 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

What is the expected electrical load for switching auxiliary circuits?

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

How should the unit be wired for supply and contacts?

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

Is the enclosure suitable for wet industrial conditions?

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

Which door control behaviour does the device enforce when energised?

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