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Honeywell GKM Series Key-Actuated Safety-Interlock Switch, GKMB33 - Key-Actuated Safety-Interlock Switches
HoneywellKey-Actuated Safety-Interlock Switches

Honeywell GKM Series Key-Actuated Safety-Interlock Switch, GKMB33

The Honeywell GKM Series Key-Actuated Safety-Interlock Switch (MPN GKMB33) is a safety interlock switch with a 1NO/1NC contact configuration. It features a pivoting actuating key type, a top key hole location, and a…

SKU 3G-OTH-30631

Also listed as: GKMB 33 · GKMB-33

Brand
Honeywell
Item
GKM Series Key-Actuated Safety-Interlock Switch, GKMB33
Category
Key-Actuated Safety-Interlock Switches
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

Honeywell
Manufacturer Part Number
GKMB33
Series
GKM
Key Hole Location
Top
Actuating Key Type
Pivoting
Terminal Connection Type
4 Pin M12

Technical Documents

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

Product Description

The Honeywell GKM Series Key-Actuated Safety-Interlock Switch (MPN GKMB33) is a safety interlock switch with a 1NO/1NC contact configuration. It features a pivoting actuating key type, a top key hole location, and a 4 Pin M12 terminal connection type.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the Honeywell GKMB33 safety interlock switch used for?

The Honeywell GKMB33 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, protecting operators in applications like packaging, material handling, and automated assembly lines.

What are the specifications of the Honeywell GKMB33?

The Honeywell GKMB33 is part of the GKM Series with a 1NO/1NC contact configuration. It features a pivoting actuating key type, a top key hole location, and a 4 Pin M12 terminal connection. The manufacturer part number is GKMB33, and it is designed for safety interlock applications.

Where to buy the Honeywell GKMB33 worldwide?

3G Electric supplies the Honeywell GKMB33 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 GKM Series switch globally.

How to install the Honeywell GKMB33 safety interlock switch?

Mount the Honeywell GKMB33 on the fixed part of the guard and align the pivoting key with the actuator on the movable part. Connect the 4 Pin M12 connector per the wiring diagram, ensuring the 1NO/1NC contacts are correctly wired into the safety circuit. Follow generic best practices for safety interlock installation.

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.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
HONEYWELL Safety Interlock Switch: GK Series, 1NO/1NC, 90° Right Angle (MPN GKBA3L7)
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HONEYWELL Safety Interlock Switch: GK Series, 1NO/1NC, 90° Right Angle (MPN GKBA3L7)
HONEYWELL Safety Interlock Switch: GKN Series, 3NC (MPN GKNA30)
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HONEYWELL Safety Interlock Switch: GKN Series, 3NC (MPN GKNA30)
HONEYWELL Safety Interlock Switch: GK Series, 4NC, 90° Right Angle (MPN GKBA10L7)
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HONEYWELL Safety Interlock Switch: GK Series, 4NC, 90° Right Angle (MPN GKBA10L7)
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
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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
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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

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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
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