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Overview

MICRO SWITCH GKL/R Series switches are a heavy-duty key operated solenoid safety interlock switch incorporating a key trapping mechanism. The trapped key attached to the guard cannot be removed from the switch until the solenoid circuit of the switch has received a remote signal (from a control device) indicating the hazardous process has subsided. This design is for use on machinery where an instant stop is either impossible (due to the momentum of the machine) or impractical due to machine conditions (such as completing a machine cycle or reducing the temperature to a safe level). There are independent contacts inside the key switch which monitor the key position and the solenoid with a range of different contact arrangements to satisfy most application requirements. All normally closed contacts of the switch are positive opening.

The key switch also incorporates a manual override feature on the front cover which allows removal of the key for emergency access. To facilitate installation, the switch is available as a GKL Series (head to the left) or a GKR Series (head to the right). The GKL/R Series switches are designed with dual-entry positions (side or top) for the key.

Documents

TITLE DOCUMENT TYPE LANGUAGE SIZE
GKR/GKL Series Solenoid Key Operated Safety Interlock Switch Datasheet English 2MB
PK 81591: GKR/GKL Series Solenoid Key Operated Safety Interlock Switch, Issue 5 Installation Instructions and Approvals Documentation English 710KB
PK 80108: GKR/GKL Series Dual Entry Solenoid Key Operated Safety Interlock Switch Installation Instructions and Approvals Documentation English 532KB
MICRO SWITCH Safety Switches Comparison Product Range Guide English 504KB
Domino Effect - GKLE Safety Switches Case Study English 154KB
Industrial Product Line Card Line Card/Selection Chart English 571KB
Limit Switches and Machine Safety Range Guide Product Range Guide English 22MB
Electromechanical Safety Switch Product Selection Guide Catalog Information English 351KB
GKL/R switch electrical endurance certificate Certificate English 27KB
GKL/R switch mechanical endurance certificate Certificate English 27KB
GKL/R switch SIRA certificate Certificate English 61KB

Browse GKR/L Series Products

Product Switch Type Circuitry Actuator Termination Type Housing Material
GKLE36PXA2 3NC/1NO Direct Opening, Slow Action Key 1/2 NPT Zinc Die-Cast
GKLE36PXA4 3NC/1NO Direct Opening, Slow Action Key 1/2 NPT Zinc Die-Cast
GKLE36PXS2 3NC/1NO Direct Opening, Slow Action Key 1/2 NPT Zinc Die-Cast
GKLE36PXS4 3NC/1NO Direct Opening, Slow Action Key 1/2 NPT Zinc Die-Cast
GKLE3PXA2 1NC/1NO Direct Opening, Slow Action Key 1/2 NPT Zinc Die-Cast
GKLE3PXA4 1NC/1NO Direct Opening, Slow Action Key 1/2 NPT Zinc Die-Cast
GKLE3PXS2 1NC/1NO Direct Opening, Slow Action Key 1/2 NPT Zinc Die-Cast
GKLE3PXS4 1NC/1NO Direct Opening, Slow Action Key 1/2 NPT Zinc Die-Cast
GKLG1PXA2 1NC/1NO Direct Opening, Snap Action Key 20 mm Zinc Die-Cast
GKLG1PXA4 1NC/1NO Direct Opening, Snap Action Key 20 mm Zinc Die-Cast