Safety Interlock Switches GS-M series

Achieve the Top Safety Standards. PLe / Category4 / SIL3

Next Evolution of Door Interlocks

  • Intuitive Design
  • Versatile Mounting
  • Seamless System Integration

GS-M series - Safety Interlock Switches

Safety interlock switches are safety devices used for checking whether movable guards such as safety fence doors and covers are opened or closed. KEYENCE’s GS-M Series safety interlock switch uses an electromagnetic locking principle and flexible actuator to prevent door rattling and misalignment for easy locking. The ultra-compact design can be used with any kind of door and can be installed anywhere. The GS-M Series offers superior safety in addition to the usability and reliability required for manufacturing sites without hindering productivity.


Intuitive Design

Unparalleled small physical footprints.
Significantly smaller than conventional models so that it can be used in areas of the machine where install space is limited.

Versatile Mounting

Locks firmly by electromagnetic force.
The GS-M Series has a simple keyless structure without mechanical lock. The lock is secured by electromagnetic power. It can also cope with slight door misalignment.

Seamless System Integration

Simple and easy wiring options.
Easy and flexible integration through Wiring Saving units and mixed cascading of GS-M/GS Series.

  • 1
  • 2
    Closed and Locked

Safety Interlock Switches Lineup

Magnet Locking

GS-M Series
Power-to-lock type

Locking strongly by electromagnetic force without stabbing the actuator. Locks for process protection.

Mechanical Locking

Power-to-lock type

Impressive 2000N holding force with articulated actuator. Locks for process protection.

Mechanical Locking

Power-to-release type

Impressive 2000N holding force with articulated actuator. Locks for human protection.

Without Locking Function

Non-contact type

Confirm all doors are closed during machine operation and trigger appropriate machine stoppage if any of them are opened.