Our most popular guardlocking safety door switch

The D4NL guard-lock safety door switches are available with four or five built-in contacts. When locked, they have a key holding force of up to 1300N. Mechanical lock/solenoid release types and vice versa set up the complete range in combination with various conduit types, e.g. M20.

  • Safety door switch with electromagnetic lock or unlock mechanism
  • Models with four or five built-in contacts
  • Strong key holding force: 1300N
  • For standard loads and micro loads
  • Keys are compatible with D4GL and D4NS


  • Best-selling guard lock safety-door switch available in several compact, multi-contact models
  • Selectable Operation Key insertion direction and adjustable mounting ensure installation flexibility
  • Lineup includes models with a conduit size of M20
  • IP67 degree of protection
  • Variety of metallic heads available

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