The HONEYWELL GKNC30 is a high-reliability safety interlock switch designed for industrial applications requiring secure access control. Manufactured in China, this switch features a robust construction with multiple safety and operational features to ensure dependable performance in demanding environments.
Positive opening safety contacts ensure reliable operation and safety compliance
Designed with three NC (Normally Closed) contacts for secure interlocking
Conduit connection size: 3x20mm, suitable for industrial wiring
Constructed with double insulation per IEC 60947-5-1 standards
Global safety approvals including cULus, CE, and CCC
Three cable entries and a large wiring cavity facilitate easy installation and maintenance
Suitable for applications such as woodworking machinery, packaging equipment, semiconductor manufacturing, and more
Technical Specifications
Specification
Details
Rated Operational Current (Ie)
120 Vac: 6 A 125 Vdc: 0.55 A 240 Vac/250 Vdc: 3 A 600 Vac: 1.2 A
Rated Thermal Current (Ith)
10 A
Sealing
IP67; NEMA 1, 4, 12, 13
Rated Impulse Withstand (Uimp)
2500 V
Pollution Degree
2 (micro-environment), 3 (macro-environment)
Rated Insulation Voltage (Ui)
600 V
Operating Temperature Range
-25 °C to 70 °C [-13 °F to 158 °F]
Storage Temperature Range
-40 °C to 85 °C [-40 °F to 185 °F]
Mechanical Life
500,000 cycles
Expected Short-Circuit Protective Device
Class J fuse (10 A/690 V)
Mounting and Dimensions
Available with various key dimensions including GKZ41 (M4 screw), GKZ42 (M5 screw), GKZ43 (M5 screw), GKZ44 (M5 screw), GKZ45 (M5 screw), and GKZF1 (M5 screw). Circuit and travel diagrams are provided in the datasheet for proper installation.
Order Guide
GKNA21: 3 contact door interlock safety limit switch; 1/2 in NPT conduit; 2NC/1NO (BBM)
GKNA30: 3 contact door interlock safety limit switch; 1/2 in NPT conduit; 3NC
GKNC21: 3 contact door interlock safety limit switch; M20 x 1.5 conduit; 2NC/1NO (BBM)
GKNC30: 3 contact door interlock safety limit switch; M20 x 1.5 conduit; 3NC
Important Safety Notice
Warning: Do not use these products as safety or emergency stop devices or in applications where failure could result in personal injury. Failure to follow safety instructions may lead to death or serious injury.
Warning: The information provided is for reference only. Complete installation, operation, and maintenance instructions are supplied with each product. Improper use may result in serious injury or death.
{"id":10026195976509,"title":"GKNC30","handle":"gknc30","description":"\u003ch3\u003eHONEYWELL GKNC30 Keylock Switch 3NC 3x20mm Conduit\u003c\/h3\u003e\n\n\u003cp\u003eThe HONEYWELL GKNC30 is a high-reliability safety interlock switch designed for industrial applications requiring secure access control. Manufactured in China, this switch features a robust construction with multiple safety and operational features to ensure dependable performance in demanding environments.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e GKNC30\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e HONEYWELL\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e CN\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eUnit of Measure:\u003c\/strong\u003e EA\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eECCN:\u003c\/strong\u003e EAR99\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003ePackage Type:\u003c\/strong\u003e Not specified\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eDatasheet:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-mr\/mr-gknc30.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003ePositive opening safety contacts ensure reliable operation and safety compliance\u003c\/li\u003e\n \u003cli\u003eDesigned with three NC (Normally Closed) contacts for secure interlocking\u003c\/li\u003e\n \u003cli\u003eConduit connection size: 3x20mm, suitable for industrial wiring\u003c\/li\u003e\n \u003cli\u003eConstructed with double insulation per IEC 60947-5-1 standards\u003c\/li\u003e\n \u003cli\u003eGlobal safety approvals including cULus, CE, and CCC\u003c\/li\u003e\n \u003cli\u003eThree cable entries and a large wiring cavity facilitate easy installation and maintenance\u003c\/li\u003e\n \u003cli\u003eSuitable for applications such as woodworking machinery, packaging equipment, semiconductor manufacturing, and more\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"5\" cellspacing=\"0\"\u003e\n \u003ctr\u003e\n \u003cth\u003eSpecification\u003c\/th\u003e\n \u003cth\u003eDetails\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eRated Operational Current (Ie)\u003c\/td\u003e\n \u003ctd\u003e120 Vac: 6 A\u003cbr\u003e125 Vdc: 0.55 A\u003cbr\u003e240 Vac\/250 Vdc: 3 A\u003cbr\u003e600 Vac: 1.2 A\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eRated Thermal Current (Ith)\u003c\/td\u003e\n \u003ctd\u003e10 A\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eSealing\u003c\/td\u003e\n \u003ctd\u003eIP67; NEMA 1, 4, 12, 13\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eRated Impulse Withstand (Uimp)\u003c\/td\u003e\n \u003ctd\u003e2500 V\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003ePollution Degree\u003c\/td\u003e\n \u003ctd\u003e2 (micro-environment), 3 (macro-environment)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eRated Insulation Voltage (Ui)\u003c\/td\u003e\n \u003ctd\u003e600 V\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eOperating Temperature Range\u003c\/td\u003e\n \u003ctd\u003e-25 °C to 70 °C [-13 °F to 158 °F]\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eStorage Temperature Range\u003c\/td\u003e\n \u003ctd\u003e-40 °C to 85 °C [-40 °F to 185 °F]\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMechanical Life\u003c\/td\u003e\n \u003ctd\u003e500,000 cycles\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eExpected Short-Circuit Protective Device\u003c\/td\u003e\n \u003ctd\u003eClass J fuse (10 A\/690 V)\u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eMounting and Dimensions\u003c\/h3\u003e\n\u003cp\u003eAvailable with various key dimensions including GKZ41 (M4 screw), GKZ42 (M5 screw), GKZ43 (M5 screw), GKZ44 (M5 screw), GKZ45 (M5 screw), and GKZF1 (M5 screw). Circuit and travel diagrams are provided in the datasheet for proper installation.\u003c\/p\u003e\n\n\u003ch3\u003eOrder Guide\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eGKNA21: 3 contact door interlock safety limit switch; 1\/2 in NPT conduit; 2NC\/1NO (BBM)\u003c\/li\u003e\n \u003cli\u003eGKNA30: 3 contact door interlock safety limit switch; 1\/2 in NPT conduit; 3NC\u003c\/li\u003e\n \u003cli\u003eGKNC21: 3 contact door interlock safety limit switch; M20 x 1.5 conduit; 2NC\/1NO (BBM)\u003c\/li\u003e\n \u003cli\u003eGKNC30: 3 contact door interlock safety limit switch; M20 x 1.5 conduit; 3NC\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eImportant Safety Notice\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWarning:\u003c\/strong\u003e Do not use these products as safety or emergency stop devices or in applications where failure could result in personal injury. Failure to follow safety instructions may lead to death or serious injury.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWarning:\u003c\/strong\u003e The information provided is for reference only. Complete installation, operation, and maintenance instructions are supplied with each product. Improper use may result in serious injury or death.\u003c\/p\u003e\n\n\u003cp\u003eFor more details, please refer to the \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-mr\/mr-gknc30.pdf\" target=\"_blank\"\u003edatasheet\u003c\/a\u003e.\u003c\/p\u003e\u003cbr\u003e","published_at":"2025-08-15T03:11:08+05:30","created_at":"2025-08-15T03:11:10+05:30","vendor":"Waldom Electonics","type":"Switches","tags":["HWLL","IMPORT_CSV","Keylock","SW","Switches","WLDM"],"price":606890,"price_min":606890,"price_max":606890,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":50621722984765,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"GKNC30","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"GKNC30","public_title":null,"options":["Default Title"],"price":606890,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"GKNC30","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/GKNC30_11932792_70f2419d.jpg?v=1755207670"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/GKNC30_11932792_70f2419d.jpg?v=1755207670","options":["Title"],"media":[{"alt":null,"id":45845214429501,"position":1,"preview_image":{"aspect_ratio":1.0,"height":200,"width":200,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/GKNC30_11932792_70f2419d.jpg?v=1755207670"},"aspect_ratio":1.0,"height":200,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/GKNC30_11932792_70f2419d.jpg?v=1755207670","width":200}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eHONEYWELL GKNC30 Keylock Switch 3NC 3x20mm Conduit\u003c\/h3\u003e\n\n\u003cp\u003eThe HONEYWELL GKNC30 is a high-reliability safety interlock switch designed for industrial applications requiring secure access control. Manufactured in China, this switch features a robust construction with multiple safety and operational features to ensure dependable performance in demanding environments.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e GKNC30\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e HONEYWELL\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e CN\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eUnit of Measure:\u003c\/strong\u003e EA\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eECCN:\u003c\/strong\u003e EAR99\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003ePackage Type:\u003c\/strong\u003e Not specified\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eDatasheet:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-mr\/mr-gknc30.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003ePositive opening safety contacts ensure reliable operation and safety compliance\u003c\/li\u003e\n \u003cli\u003eDesigned with three NC (Normally Closed) contacts for secure interlocking\u003c\/li\u003e\n \u003cli\u003eConduit connection size: 3x20mm, suitable for industrial wiring\u003c\/li\u003e\n \u003cli\u003eConstructed with double insulation per IEC 60947-5-1 standards\u003c\/li\u003e\n \u003cli\u003eGlobal safety approvals including cULus, CE, and CCC\u003c\/li\u003e\n \u003cli\u003eThree cable entries and a large wiring cavity facilitate easy installation and maintenance\u003c\/li\u003e\n \u003cli\u003eSuitable for applications such as woodworking machinery, packaging equipment, semiconductor manufacturing, and more\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"5\" cellspacing=\"0\"\u003e\n \u003ctr\u003e\n \u003cth\u003eSpecification\u003c\/th\u003e\n \u003cth\u003eDetails\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eRated Operational Current (Ie)\u003c\/td\u003e\n \u003ctd\u003e120 Vac: 6 A\u003cbr\u003e125 Vdc: 0.55 A\u003cbr\u003e240 Vac\/250 Vdc: 3 A\u003cbr\u003e600 Vac: 1.2 A\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eRated Thermal Current (Ith)\u003c\/td\u003e\n \u003ctd\u003e10 A\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eSealing\u003c\/td\u003e\n \u003ctd\u003eIP67; NEMA 1, 4, 12, 13\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eRated Impulse Withstand (Uimp)\u003c\/td\u003e\n \u003ctd\u003e2500 V\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003ePollution Degree\u003c\/td\u003e\n \u003ctd\u003e2 (micro-environment), 3 (macro-environment)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eRated Insulation Voltage (Ui)\u003c\/td\u003e\n \u003ctd\u003e600 V\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eOperating Temperature Range\u003c\/td\u003e\n \u003ctd\u003e-25 °C to 70 °C [-13 °F to 158 °F]\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eStorage Temperature Range\u003c\/td\u003e\n \u003ctd\u003e-40 °C to 85 °C [-40 °F to 185 °F]\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMechanical Life\u003c\/td\u003e\n \u003ctd\u003e500,000 cycles\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eExpected Short-Circuit Protective Device\u003c\/td\u003e\n \u003ctd\u003eClass J fuse (10 A\/690 V)\u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eMounting and Dimensions\u003c\/h3\u003e\n\u003cp\u003eAvailable with various key dimensions including GKZ41 (M4 screw), GKZ42 (M5 screw), GKZ43 (M5 screw), GKZ44 (M5 screw), GKZ45 (M5 screw), and GKZF1 (M5 screw). Circuit and travel diagrams are provided in the datasheet for proper installation.\u003c\/p\u003e\n\n\u003ch3\u003eOrder Guide\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eGKNA21: 3 contact door interlock safety limit switch; 1\/2 in NPT conduit; 2NC\/1NO (BBM)\u003c\/li\u003e\n \u003cli\u003eGKNA30: 3 contact door interlock safety limit switch; 1\/2 in NPT conduit; 3NC\u003c\/li\u003e\n \u003cli\u003eGKNC21: 3 contact door interlock safety limit switch; M20 x 1.5 conduit; 2NC\/1NO (BBM)\u003c\/li\u003e\n \u003cli\u003eGKNC30: 3 contact door interlock safety limit switch; M20 x 1.5 conduit; 3NC\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eImportant Safety Notice\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWarning:\u003c\/strong\u003e Do not use these products as safety or emergency stop devices or in applications where failure could result in personal injury. Failure to follow safety instructions may lead to death or serious injury.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWarning:\u003c\/strong\u003e The information provided is for reference only. Complete installation, operation, and maintenance instructions are supplied with each product. Improper use may result in serious injury or death.\u003c\/p\u003e\n\n\u003cp\u003eFor more details, please refer to the \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-mr\/mr-gknc30.pdf\" target=\"_blank\"\u003edatasheet\u003c\/a\u003e.\u003c\/p\u003e\u003cbr\u003e"}
