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Safety Limit Switches

GK Series

Metal body for large doors/cages. Unique friction feature. UL, CSA, CE, SIL3. IP67. NEMA 1, 4, 12, 13. Silver & gold contacts

Overview
GK Series

MICRO SWITCH GK Series switches are key-operated safety interlock rugged metal switches which monitor the positions of gates, guards, or doors. The key is attached to the moving portion of the gate, guard, or door. When the gate is closed, the key is inserted into the GK switch indicating a safe position (gate closed) and the machine process can start. The positive opening normally closed contacts are held closed when the key is inserted into the GK switch. Opening the gate, removes the key from the switch. This action opens the normally closed contacts of the switch and interrupts the machine's control circuit.

GK Series switches are designed with dual-entry positions for the key. The key can be inserted from the top or side of the switch which allows more flexibility in mounting the switch in the application. There are four different styles of keys and a variety of switch contact arrangements to satisfy the requirements for most applications requiring a safety interlock key switch. GK Series switches are designed with a unique friction feature for key retention. GK Series switches have been evaluated for safety functions up to and including a safety integrity level (SIL) of SIL3 when evaluated to the requirements of IEC 61508-2:2010.

Specifications

Standards & Certifications

  • Agency Approvals and Standards
    • CE (per IEC 60947-1, IEC 60947-5-1)
    • CSA (C22.2 No.14. File 57323)
    • UL (per UL508, File E37138)
  • Pollution Degree
    • 3

Features

  • With LED Pilot Light/S
    • No
  • Vibration
    • 10 G per IEC 60068-2-6
  • Utilization Category
    • A300/A600
    • AC15
    • DC13 Q300
  • Shock
    • 50 G per IEC 60068-2-27
  • Series Name
    • GK Series
  • Sealing
    • IP67
    • NEMA 1
    • NEMA 12
    • NEMA 13
    • NEMA 4
  • SIL Capability
    • IEC 61508-2:2010
    • Up to and Including SIL3 (HFT1)
  • Proof Test Interval
    • 1 Year
  • MCTF (Electrical Life)
    • >60,000 Cycles
  • Key Style
    • 90°
  • Indicator
    • No

Electrical Specifications

  • Thermal Current
    • 10 A
  • Rated Insulation Voltage
    • 300 V, 600 V
  • Rated Impulse Withstand Voltage
    • 2500
  • Conditional Short-Circuit Current
    • 1000 A

Technical Specifications

  • Termination Type
    • Conduit/Connector
  • Switch Type
    • Interlock
  • Short Circuit Protective Device (SCPD)
    • Class J Fuse (10 A/600 V)
  • Lever Type
    • Key Operated
  • Head Position
    • Front & Top
  • Contact Form
    • 1NC/1NO Snap-Action
  • Connection Type
    • NPT
  • Ampere Rating
    • 0.27 A
    • 1.2 A
    • 3 A

Overview

  • Product Type
    • MICRO SWITCH Key-Operated Safety Interlock Switch

Operating Characteristics

  • Operating Temperature
    • -25 to 85 °C (-13 to 185 °F)

Material Specifications

  • Housing Material
    • Epoxy Coated Die-Cast Zinc
  • Expected Mechanical Life
    • >1,000,000 Cycles With Single-Sided Confidence Limit of 95%
  • Contact Material
    • Silver Alloy (Standard)

Dimensions & Weight

  • Conduit Size
    • 0.5-14 NPT, 20 mm, PG 13,5 Threaded Conduit
  • Cable Length
    • 20 mm

Others

  • Height
    • 121.6 mm
    • 4.78 in
  • Depth
    • 1.67 in
    • 42.6 mm

Standards & Certifications

  • Agency Approvals and Standards
    • CE (per IEC 60947-1, IEC 60947-5-1)
    • CSA (C22.2 No.14. File 57323)
    • UL (per UL508, File E37138)
  • Pollution Degree
    • 3

Features

  • With LED Pilot Light/S
    • No
  • Vibration
    • 10 G per IEC 60068-2-6
  • Utilization Category
    • A300/A600
    • AC15
    • DC13 Q300
  • Shock
    • 50 G per IEC 60068-2-27
  • Series Name
    • GK Series
  • Sealing
    • IP67
    • NEMA 1
    • NEMA 12
    • NEMA 13
    • NEMA 4
  • SIL Capability
    • IEC 61508-2:2010
    • Up to and Including SIL3 (HFT1)
  • Proof Test Interval
    • 1 Year
  • MCTF (Electrical Life)
    • >60,000 Cycles
  • Key Style
    • 90°
  • Indicator
    • No

Electrical Specifications

  • Thermal Current
    • 10 A
  • Rated Insulation Voltage
    • 300 V, 600 V
  • Rated Impulse Withstand Voltage
    • 2500
  • Conditional Short-Circuit Current
    • 1000 A

Technical Specifications

  • Termination Type
    • Conduit/Connector
  • Switch Type
    • Interlock
  • Short Circuit Protective Device (SCPD)
    • Class J Fuse (10 A/600 V)
  • Lever Type
    • Key Operated
  • Head Position
    • Front & Top
  • Contact Form
    • 1NC/1NO Snap-Action
  • Connection Type
    • NPT
  • Ampere Rating
    • 0.27 A
    • 1.2 A
    • 3 A

Overview

  • Product Type
    • MICRO SWITCH Key-Operated Safety Interlock Switch

Operating Characteristics

  • Operating Temperature
    • -25 to 85 °C (-13 to 185 °F)

Material Specifications

  • Housing Material
    • Epoxy Coated Die-Cast Zinc
  • Expected Mechanical Life
    • >1,000,000 Cycles With Single-Sided Confidence Limit of 95%
  • Contact Material
    • Silver Alloy (Standard)

Dimensions & Weight

  • Conduit Size
    • 0.5-14 NPT, 20 mm, PG 13,5 Threaded Conduit
  • Cable Length
    • 20 mm

Others

  • Height
    • 121.6 mm
    • 4.78 in
  • Depth
    • 1.67 in
    • 42.6 mm
  • Height : 121.6 mm|4.78 in
  • Depth : 1.67 in|42.6 mm
  • Agency Approvals and Standards : CE (per IEC 60947-1, IEC 60947-5-1)|CSA (C22.2 No.14. File 57323)|UL (per UL508, File E37138)
  • With LED Pilot Light/S : No
  • Vibration : 10 G per IEC 60068-2-6
  • Utilization Category : A300/A600|AC15|DC13 Q300
  • Thermal Current : 10 A
  • Termination Type : Conduit/Connector
  • Switch Type : Interlock
  • Short Circuit Protective Device (SCPD) : Class J Fuse (10 A/600 V)
  • Shock : 50 G per IEC 60068-2-27
  • Series Name : GK Series
  • Sealing : IP67|NEMA 1|NEMA 12|NEMA 13|NEMA 4
  • SIL Capability : IEC 61508-2:2010|Up to and Including SIL3 (HFT1)
  • Rated Insulation Voltage : 300 V, 600 V
  • Rated Impulse Withstand Voltage : 2500
  • Proof Test Interval : 1 Year
  • Product Type : MICRO SWITCH Key-Operated Safety Interlock Switch
  • Pollution Degree : 3
  • Operating Temperature : -25 to 85 °C (-13 to 185 °F)
  • MCTF (Electrical Life) : >60,000 Cycles
  • Lever Type : Key Operated
  • Key Style : 90°
  • Indicator : No
  • Housing Material : Epoxy Coated Die-Cast Zinc
  • Head Position : Front & Top
  • Expected Mechanical Life : >1,000,000 Cycles With Single-Sided Confidence Limit of 95%
  • Contact Material : Silver Alloy (Standard)
  • Contact Form : 1NC/1NO Snap-Action
  • Connection Type : NPT
  • Conduit Size : 0.5-14 NPT, 20 mm, PG 13,5 Threaded Conduit
  • Conditional Short-Circuit Current : 1000 A
  • Cable Length : 20 mm
  • Ampere Rating : 0.27 A|1.2 A|3 A
Data Sheet
Name
Description
File Size
Date
Size
GK Series Global Key Operated Safety Interlock Switch
application/pdf 1.43 MB
7/16/2021
1.43 MB
Manuals and Guides
Name
Description
File Size
Date
Size
application/pdf 7.99 MB
5/20/2025
7.99 MB
Electromechanical Safety Switch Product Selection Guide
application/pdf 355.99 KB
7/16/2021
355.99 KB
Installation Instructions
Name
Description
File Size
Date
Size
PK 80109: GK Series Dual Entry Key Operated Safety Interlock Switch
application/pdf 548 KB
7/16/2021
548 KB
Brochure
Name
Description
File Size
Date
Size
Industrial Applications: Going Beyond Limits
application/pdf 16.68 MB
2/11/2025
16.68 MB
MICRO SWITCH Safety Switches Comparison
application/pdf 636.73 KB
4/8/2024
636.73 KB
Technical Note
Name
Description
File Size
Date
Size
Industrial Product Line Card --
application/pdf 2.24 MB
10/25/2022
2.24 MB
Certificate
Name
Description
File Size
Date
Size
GK switch mechanical endurance certificate
application/pdf 27.59 KB
7/16/2021
27.59 KB
GK switch SIRA certificate
application/pdf 58.79 KB
7/16/2021
58.79 KB
GK switch electrical endurance certificate
application/pdf 27.3 KB
7/16/2021
27.3 KB
Application Note
Name
Description
File Size
Date
Size
Agricultural Vehicles
application/pdf 1.11 MB
4/11/2024
1.11 MB
Limit Switches with Positive-Opening Contacts
application/pdf 3.02 MB
10/21/2021
3.02 MB
eBook
Name
Description
File Size
Date
Size
Factory Automation Manufacturing Solutions
application/pdf 15.63 MB
2/11/2025
15.63 MB
Name
Description
File Size
Date
Size
Factory Automation Manufacturing Solutions
application/pdf 15.63 MB
2/11/2025
15.63 MB
Industrial Applications: Going Beyond Limits
application/pdf 16.68 MB
2/11/2025
16.68 MB
GK switch mechanical endurance certificate
application/pdf 27.59 KB
7/16/2021
27.59 KB
Agricultural Vehicles
application/pdf 1.11 MB
4/11/2024
1.11 MB
Limit Switches with Positive-Opening Contacts
application/pdf 3.02 MB
10/21/2021
3.02 MB
application/pdf 7.99 MB
5/20/2025
7.99 MB
PK 80109: GK Series Dual Entry Key Operated Safety Interlock Switch
application/pdf 548 KB
7/16/2021
548 KB
MICRO SWITCH Safety Switches Comparison
application/pdf 636.73 KB
4/8/2024
636.73 KB
GK switch SIRA certificate
application/pdf 58.79 KB
7/16/2021
58.79 KB
GK switch electrical endurance certificate
application/pdf 27.3 KB
7/16/2021
27.3 KB
GK Series Global Key Operated Safety Interlock Switch
application/pdf 1.43 MB
7/16/2021
1.43 MB
Industrial Product Line Card --
application/pdf 2.24 MB
10/25/2022
2.24 MB
Electromechanical Safety Switch Product Selection Guide
application/pdf 355.99 KB
7/16/2021
355.99 KB
Showing 1 to 10 of 33 parts
Product Number
Part Number
Description
Leaf Category
Thumbnail
GKBA2LX
SAFETY LIMIT SWITCH-HEAVY DUTY
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-gkca1l7-highres-ciid-161422
GKBA2LX
SAFETY LIMIT SWITCH-HEAVY DUTY
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-gkca1l7-highres-ciid-161422
GKCA14L6
SAFETY LIMIT SWITCH-HEAVY DUTY
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-gkca1l7-highres-ciid-161422
GKCA14L6
SAFETY LIMIT SWITCH-HEAVY DUTY
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-gkca1l7-highres-ciid-161422
GKN-50005389
Contact Movable Assy for GKN series
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-gkca1l7-highres-ciid-161422
GKN-50005389
Contact Movable Assy for GKN series
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-gkca1l7-highres-ciid-161422
GKN-50005391
TERMINAL ASSY LH FOR GKN SERIES
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-gkca1l7-highres-ciid-161422
GKN-50005391
TERMINAL ASSY LH FOR GKN SERIES
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-gkca1l7-highres-ciid-161422
GKN-50005392
TERMINAL ASSY LH FOR GKN SERIES
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-gkca1l7-highres-ciid-161422
GKN-50005392
TERMINAL ASSY LH FOR GKN SERIES
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-gkca1l7-highres-ciid-161422
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