Omron D4NH Safety Rated Interlock Switch, Hinge Actuator Included, Plastic, Hinge

Omron D4NH Series Safety Rated Interlock Switch, 240V AC Contact Voltage, IP67 - D4NH-4BAS

This safety-rated interlock switch is designed to stop machinery when protective doors or guards open, providing a compact, hinge-style interlock for industrial automation environments. It features a plastic enclosure with a hinge lock and a head that can be mounted in four orientations, making it suitable for constrained installations where space saving and door-interlock function are required.

Features & Benefits

• IP67 rating ensures protection against dust and temporary immersion
  Rated for switching at 240V AC and 250V DC for flexible control circuits
  3A contact current supports standard control-load applications
  Operates across -30 to 70°C to suit varied temperature conditions
  Slow-action contacts with direct-opening on NC contacts for safety integrity
  M20 conduit entry simplifies European wiring and connector choice

Applications

• Suitable for guarding on automated assembly machinery
  Ideal for interlocking access panels on electrical cabinets
  used with conveyor safety doors in material handling systems
  Can be used for lockout functions on packaging equipment

How many head orientations can I install for alignment with a guard?

The head is removable and can be re-mounted in four directions to align the actuator with the guard or door motion.

What contact types are available for matching control logic?

The internal switch offers multiple slow-action contact arrangements including single NC/NO, dual NC and three-NC configurations to match different circuit designs.

Can the switch withstand humid or wet manufacturing areas?

The enclosure meets IP67 criteria when correctly sealed and connected, protecting against dust ingress and temporary immersion
take care to keep the head free of foreign material.

What wiring options are provided for maintenance convenience?

Conduit openings accommodate M20 connections and recommended conduit adaptors
M12 connector variants are available for simplified assembly and servicing.