Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

Honeywell GKM Series Key-Actuated Safety-Interlock Switch - Key-Actuated Safety-Interlock Switches
HoneywellKey-Actuated Safety-Interlock Switches

Honeywell GKM Series Key-Actuated Safety-Interlock Switch

The Honeywell GKM Series Key-Actuated Safety-Interlock Switch (MPN GKMB23) is a safety interlock switch with a 1NO/1NC contact configuration. It features a 90° actuating key type and a top key hole location, with a 4…

SKU 3G-OTH-30338

Also listed as: GKMB 23 · GKMB-23

Brand
Honeywell
Item
GKM Series Key-Actuated Safety-Interlock Switch
Category
Key-Actuated Safety-Interlock Switches
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

Honeywell
Manufacturer Part Number
GKMB23
Series
GKM
Key Hole Location
Top
Actuating Key Type
90°
Terminal Connection Type
4 Pin M12

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

Honeywell Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Honeywell GKM Series Key-Actuated Safety-Interlock Switch (MPN GKMB23) is a safety interlock switch with a 1NO/1NC contact configuration. It features a 90° actuating key type and a top key hole location, with a 4 Pin M12 terminal connection type.

Frequently Asked Questions

What is the Honeywell GKMB23 safety interlock switch used for?

The Honeywell GKMB23 is a key-actuated safety-interlock switch used to monitor the position of movable guards on industrial machinery. It helps prevent machine operation when the guard is open, enhancing worker safety in applications such as packaging, material handling, and automated production lines.

What are the specifications of the Honeywell GKMB23?

The Honeywell GKMB23 is part of the GKM Series with a 1NO/1NC contact configuration. It features a 90° actuating key type, top key hole location, and a 4 Pin M12 terminal connection type. The manufacturer part number is GKMB23, and it is designed for safety interlock applications.

Where to buy the Honeywell GKMB23 worldwide?

3G Electric supplies the Honeywell GKMB23 safety interlock switch worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we source and deliver this Honeywell component to any country.

How to install the Honeywell GKMB23 safety interlock switch?

Mount the switch body securely to the machine frame and align the 90° actuating key with the guard. Connect the 4 Pin M12 terminal according to the wiring diagram, ensuring the 1NO/1NC contacts are correctly wired into the safety circuit. Always follow the machine's safety standards and test the interlock function before operation.

Used in

Common applications for Honeywell
Commercial kitchen and inflight-catering steam boilers — RM7890 / RM7895 flame relays with UV detection
Food-processing ramp-and-dwell ovens — DBC2000E / DBC2100E controllers
Hotel and hospital boiler plants — VR8205 combination gas controls
Petrochemical tank-farm heating — V4xxx gas-valve bodies with ML7420 actuators
Retrofit swap-outs from legacy Fireye / Satronic — Honeywell replacement kits

Honeywell Products

3G Electric supplies Honeywell key-actuated safety-interlock switches. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
Key-actuated safety-interlock switch with 1NO/1NC contact configuration. Features a pivoting actuating key, top key hole location, and 4-pin M12 terminal connection. Used to monitor position of movable guards on industrial machinery, preventing operation when guard is open
Honeywell
Key-actuated safety-interlock switch with 1NO/1NC contact configuration. Features a pivoting actuating key, top key hole location, and 4-pin M12 terminal connection. Used to monitor position of movable guards on industrial machinery, preventing operation when guard is open
Key-actuated safety-interlock switch with a 90° actuating key type and front key hole location. Features a 10-pin terminal connection. Used in industrial machinery for interlocking guards, doors, and covers to prevent access to hazardous areas until power is removed
Honeywell
Key-actuated safety-interlock switch with a 90° actuating key type and front key hole location. Features a 10-pin terminal connection. Used in industrial machinery for interlocking guards, doors, and covers to prevent access to hazardous areas until power is removed
Key-actuated safety-interlock switch from the Honeywell GKN series. Features a spring-type actuating key with the key hole located on the top. Terminal connection is via 1/2 in NPT conduit. Used to guard hazardous machinery in industrial environments, ensuring machine power is isolated when the guard is opened
Honeywell
Key-actuated safety-interlock switch from the Honeywell GKN series. Features a spring-type actuating key with the key hole located on the top. Terminal connection is via 1/2 in NPT conduit. Used to guard hazardous machinery in industrial environments, ensuring machine power is isolated when the guard is opened
The Honeywell GKZ51M is a straight actuating key from the GKM series, designed for use with safety-interlock switches. It activates or deactivates switch contacts when inserted, serving as a component in machine guarding systems to prevent access to hazardous areas during operation
Honeywell
The Honeywell GKZ51M is a straight actuating key from the GKM series, designed for use with safety-interlock switches. It activates or deactivates switch contacts when inserted, serving as a component in machine guarding systems to prevent access to hazardous areas during operation
The Honeywell GKZ42 is a 90° right angle actuating key from the GKN series. It is designed for use with safety-interlock switches to provide mechanical actuation for machine guarding and access control in industrial environments
Honeywell
The Honeywell GKZ42 is a 90° right angle actuating key from the GKN series. It is designed for use with safety-interlock switches to provide mechanical actuation for machine guarding and access control in industrial environments

More from Honeywell

View all Honeywell parts
Honeywell GKN Series key-actuated safety-interlock switch with 3NC contact form. Features front key hole location, spring-type actuating key, and 1/2 in NPT conduit terminal connection. Used for machine guarding in industrial automation, packaging, and material handling applications
Honeywell
Honeywell GKN Series key-actuated safety-interlock switch with 3NC contact form. Features front key hole location, spring-type actuating key, and 1/2 in NPT conduit terminal connection. Used for machine guarding in industrial automation, packaging, and material handling applications
Key-actuated safety-interlock switch from Honeywell's GK Series. Features a 90° actuating key type and top key hole location. Terminates via a 10-pin connector. Used to monitor guard position on industrial machinery, preventing operation when the guard is open
Honeywell
Key-actuated safety-interlock switch from Honeywell's GK Series. Features a 90° actuating key type and top key hole location. Terminates via a 10-pin connector. Used to monitor guard position on industrial machinery, preventing operation when the guard is open
Key-actuated safety-interlock switch with 4 normally closed (4NC) contacts and a 90° right-angle actuating key. Features a front key hole location and 10-pin terminal connection. Used to guard access to hazardous machinery in industrial automation, packaging, and material handling applications
Honeywell
Key-actuated safety-interlock switch with 4 normally closed (4NC) contacts and a 90° right-angle actuating key. Features a front key hole location and 10-pin terminal connection. Used to guard access to hazardous machinery in industrial automation, packaging, and material handling applications
Key-actuated safety-interlock switch from the GKE series with 2NC contact configuration. Features a 90° actuating key type, top key hole location, and 1/2 in NPT conduit terminal connection. Used for machine guard interlocking in industrial automation and material handling applications
Honeywell
Key-actuated safety-interlock switch from the GKE series with 2NC contact configuration. Features a 90° actuating key type, top key hole location, and 1/2 in NPT conduit terminal connection. Used for machine guard interlocking in industrial automation and material handling applications
Key-actuated safety-interlock switch from the Honeywell GKE series. Features a 90° actuating key type with top key hole location and 1/2 in NPT conduit terminal connection. Used to monitor guard positions on industrial machinery, preventing operation when guards are open
Honeywell
Key-actuated safety-interlock switch from the Honeywell GKE series. Features a 90° actuating key type with top key hole location and 1/2 in NPT conduit terminal connection. Used to monitor guard positions on industrial machinery, preventing operation when guards are open
The Honeywell GKBA16L6 is a key-actuated safety-interlock switch from the GK Series. It features a 3NC contact form, front key hole location, flat actuating key, and 10-pin terminal connection. This switch is used to guard hazardous machinery in industrial environments, ensuring power isolation when guards are opened
Honeywell
The Honeywell GKBA16L6 is a key-actuated safety-interlock switch from the GK Series. It features a 3NC contact form, front key hole location, flat actuating key, and 10-pin terminal connection. This switch is used to guard hazardous machinery in industrial environments, ensuring power isolation when guards are opened
Key-actuated safety-interlock switch with a 90° actuating key type and front key hole location. Features a 10-pin terminal connection. Used to guard access to hazardous machinery, preventing operation when the guard is open
Honeywell
Key-actuated safety-interlock switch with a 90° actuating key type and front key hole location. Features a 10-pin terminal connection. Used to guard access to hazardous machinery, preventing operation when the guard is open
The Honeywell GKEA03L is a key-actuated safety-interlock switch from the GKE Series. It features a flat actuating key, top key hole location, and a 1/2 in NPT conduit terminal connection. This switch is used to guard hazardous machinery in industrial environments, ensuring equipment cannot operate unless the actuator key is properly inserted
Honeywell
The Honeywell GKEA03L is a key-actuated safety-interlock switch from the GKE Series. It features a flat actuating key, top key hole location, and a 1/2 in NPT conduit terminal connection. This switch is used to guard hazardous machinery in industrial environments, ensuring equipment cannot operate unless the actuator key is properly inserted