Omron D4SL-N Series Solenoid Interlock Switch, Power to Unlock

Omron D4SL-N Series Solenoid Interlock Switch, 4.8W Power Consumption, IP67 - D4SL-N4PFA-D

This solenoid interlock switch is a Compact guard-lock device designed to control access to hazardous areas and integrate with industrial control systems. It provides electrically controlled locking and unlocking of safety doors, operating within automation and machinery environments where monitored door status and lock monitoring are required. The unit features a metal enclosure with ingress protection suitable for harsher shop-floor conditions and supports conduit wiring for straightforward installation.

Features & Benefits

• IP67 protection prevents dust and temporary immersion
  Metal housing increases mechanical robustness for industrial use
  Power to lock/unlock at 4.8W enables direct solenoid drive
  Three auxiliary contacts supply additional monitoring outputs
  Rated for 120V AC and 125V DC contact switching at 1.5A
  Screw Terminal connection simplifies secure wiring installation

**Applications**

• Suitable for machine-guard monitoring on manufacturing lines
  Ideal for safety interlock on automated assembly cells
  Used with control panels requiring monitored lock feedback
  Can be used for access control on fabrication equipment

What conduit options are available for wiring the unit?

The device accepts an M20 conduit entry and includes an M20-to-1/2-14NPT conversion adaptor for alternate conduit threads.

How does the switch perform under frequent operation?

Mechanical life is specified to a minimum of 1 million operations with electrical endurance up to 150,000 operations under a 1A resistive 125V AC load.

What are the electrical consumption and solenoid characteristics?

Typical power consumption for the locking Coil is 4.8W on 24V DC types during activation, with a starting higher-current interval before switching to a constant current.

Are there indicators or wiring variants for system integration?

Models offer versions with LED indication and either terminal-block or connector wiring to suit different installation and monitoring needs.

Notes

Actuators sold separately.

Standards

EN60947-5-1 (certified direct opening), UL508, CSA C22.2 No.14, GB14048.5, EN60947-5-1.

Approvals

TÜV SÜD , UL, CQC (CCC), KOSHA.