Rockwell A-B 440G-MT47039 Guardmaster 440G-MT Guardlock Switch – Industrial Safety Interlock
The Rockwell Automation Guardmaster 440G-MT Guardlock Switch is designed to provide advanced safety interlocking solutions for machine guarding applications. It ensures that machines are safely shut down before guards can be opened, enhancing operator safety and compliance with international safety standards.
Manufacturer:Rockwell Automation
Model:440G-MT
Series:440G
Type:Guardlock Switch
Power Requirement:10-24 VDC
Operating Temperature:-20°C to +60°C
Protection Rating:IP67
Material:Stainless Steel
Weight:0.8 kg
Dimensions:10.2 x 11.4 x 11.4 cm
The A-B 440G-MT47039 Guardmaster 440G-MT Guardlock Switch is built with durability and reliability in mind, making it suitable for use in harsh industrial settings where safety is paramount.
This switch employs stainless steel actuators for long-lasting performance even in environments prone to corrosion or wear.
With a robust design and high contact rating, the Guardmaster 440G-MT Guardlock Switch can reliably disconnect power to equipment when a guard is opened, preventing accidental start-ups and safeguarding operators.
The switch has been certified to meet global safety standards including UL, CE, TUV, and CSA, ensuring compliance with international safety regulations.
Installation is straightforward, thanks to multiple mounting options and a versatile M12 connector type that allows easy integration into existing machinery.



















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