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
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Overview
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
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Data Sheet
Name
Description
File Size
Date
Size
GK Series Global Key Operated Safety Interlock Switch
application/pdf 1.43 MB
8/13/2025
1.43 MB
Manuals and Guides
Name
Description
File Size
Date
Size
Electromechanical Safety Switch Product Selection Guide
application/pdf 355.99 KB
8/13/2025
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
8/21/2025
548 KB
Brochure
Name
Description
File Size
Date
Size
Sensing Solutions For Industrial Applications Brochure
application/pdf 16.68 MB
1/22/2026
16.68 MB
MICRO SWITCH Safety Switches Comparison
application/pdf 636.73 KB
8/14/2025
636.73 KB
Technical Note
Name
Description
File Size
Date
Size
Industrial Product Line Card --
application/pdf 2.24 MB
8/14/2025
2.24 MB
Certificate
Name
Description
File Size
Date
Size
SIRA FSP 09013-02 - GK safety switch.docx
application/pdf 58.79 KB
7/16/2021
58.79 KB
GK switch mechanical endurance certificate
application/pdf 27.59 KB
7/16/2021
27.59 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 Note
application/pdf 1.11 MB
8/20/2025
1.11 MB
Limit Switches with Positive-Opening Contacts
application/pdf 3.02 MB
8/14/2025
3.02 MB
eBook
Name
Description
File Size
Date
Size
Name
Description
File Size
Date
Size
Sensing Solutions For Industrial Applications Brochure
application/pdf 16.68 MB
1/22/2026
16.68 MB
MICRO SWITCH Safety Switches Comparison
application/pdf 636.73 KB
8/14/2025
636.73 KB
SIRA FSP 09013-02 - GK safety switch.docx
application/pdf 58.79 KB
7/16/2021
58.79 KB
PK 80109: GK Series Dual Entry Key Operated Safety Interlock Switch
application/pdf 548 KB
8/21/2025
548 KB
Industrial Product Line Card --
application/pdf 2.24 MB
8/14/2025
2.24 MB
Agricultural Vehicles Application Note
application/pdf 1.11 MB
8/20/2025
1.11 MB
GK switch mechanical endurance certificate
application/pdf 27.59 KB
7/16/2021
27.59 KB
Limit Switches with Positive-Opening Contacts
application/pdf 3.02 MB
8/14/2025
3.02 MB
Electromechanical Safety Switch Product Selection Guide
application/pdf 355.99 KB
8/13/2025
355.99 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
8/13/2025
1.43 MB
Name
Description
File Size
Date
Size
GK Series Global Key Operated Safety Interlock Switch
1.43 MB
8/13/2025
Electromechanical Safety Switch Product Selection Guide
355.99 KB
8/13/2025
PK 80109: GK Series Dual Entry Key Operated Safety Interlock Switch
548 KB
8/21/2025
Sensing Solutions For Industrial Applications Brochure
16.68 MB
1/22/2026
GK switch mechanical endurance certificate
27.59 KB
7/16/2021
GK switch electrical endurance certificate
27.3 KB
7/16/2021
Limit Switches with Positive-Opening Contacts
3.02 MB
8/14/2025
Product Number
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GKBA10L6
SAFETY LIMIT SWITCH-HEAVY DUTY
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-gkca1l7-highres-ciid-161422
GKBA10L6
SAFETY LIMIT SWITCH-HEAVY DUTY
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-gkca1l7-highres-ciid-161422
GKBA10L7
SAFETY LIMIT SWITCH-HEAVY DUTY
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-gkca1l7-highres-ciid-161422
GKBA10L7
SAFETY LIMIT SWITCH-HEAVY DUTY
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-gkca1l7-highres-ciid-161422
GKBA10L9
SAFETY LIMIT SWITCH-HEAVY DUTY
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-gkca1l7-highres-ciid-161422
GKBA10L9
SAFETY LIMIT SWITCH-HEAVY DUTY
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-gkca1l7-highres-ciid-161422
GKBA10N8
SAFETY LIMIT SWITCH-HEAVY DUTY
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-gkca1l7-highres-ciid-161422
GKBA10N8
SAFETY LIMIT SWITCH-HEAVY DUTY
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-gkca1l7-highres-ciid-161422
GKBA14L6
SAFETY LIMIT SWITCH-HEAVY DUTY
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-gkca1l7-highres-ciid-161422
GKBA14L6
SAFETY LIMIT SWITCH-HEAVY DUTY
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-gkca1l7-highres-ciid-161422
GKBA14L7
SAFETY LIMIT SWITCH-HEAVY DUTY
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-gkca1l7-highres-ciid-161422
GKBA14L7
SAFETY LIMIT SWITCH-HEAVY DUTY
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-gkca1l7-highres-ciid-161422
GKBA14L9
SAFETY LIMIT SWITCH-HEAVY DUTY
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-gkca1l7-highres-ciid-161422
GKBA14L9
SAFETY LIMIT SWITCH-HEAVY DUTY
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-gkca1l7-highres-ciid-161422
GKBA16L6
SAFETY LIMIT SWITCH-HEAVY DUTY
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-gkca1l7-highres-ciid-161422
GKBA16L6
SAFETY LIMIT SWITCH-HEAVY DUTY
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-gkca1l7-highres-ciid-161422
GKBA16L7
SAFETY LIMIT SWITCH-HEAVY DUTY
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-gkca1l7-highres-ciid-161422
GKBA16L7
SAFETY LIMIT SWITCH-HEAVY DUTY
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-gkca1l7-highres-ciid-161422
GKBA1L6
SAFETY LIMIT SWITCH-HEAVY DUTY
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-gkca1l7-highres-ciid-161422
GKBA1L6
SAFETY LIMIT SWITCH-HEAVY DUTY
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-gkca1l7-highres-ciid-161422
