440G-MT47038

Overview of Allen Bradley 440G-MT47038

The Allen Bradley 440G-MT47038 is a Guardmaster guard locking solenoid switch designed for safety applications in industrial environments. It integrates robust solenoid locking with high-performance safety switching, ensuring machine guards remain securely closed during operation. This model offers precise actuator control and positive break contacts for reliable machine isolation, contributing to personnel protection. The 440G-MT47038 supports multiple power supply options including 24V AC/DC, and is built to withstand harsh conditions with an IP67 ingress protection rating. Its rugged stainless steel actuator and long mechanical life make it an essential component in safety interlock systems to prevent unauthorized or hazardous access to machinery[1][4][6].

Key Features of Allen Bradley 440G-MT47038

• Solenoid locking guard switch with a fully-flex actuator for versatile installation.
• Three Normally Closed (N.C.) safety contacts with direct opening action and one Normally Open (N.O.) auxiliary contact.
• Suitable for 24V AC/DC power supply, ensuring compatibility with standard control systems.
• Stainless steel actuator material designed for durability and corrosion resistance.
• IP67-rated enclosure for dust-tight and water-jet protection, ideal for tough industrial settings.
• High actuation speed range (100 mm/min to 160 mm/s) for responsive guard unlocking.
• Mechanical life rated at up to 1,000,000 operations providing long-term reliability.
• Holding force around 1500N to securely lock guards, complying with safety standards.
• Built-in auxiliary and escape release options to enhance safety and ease of use.
• Compatible with standard conduit connections (M20) for straightforward wiring and integration.

Technical Specs of 440G-MT47038

Specification	Details
Power Supply	24V AC/DC, 110V AC, 230V AC (85–110%)
Safety Contacts	3 N.C. direct opening action
Auxiliary Contacts	1 N.O.
Actuator Holding Force	Approximately 1500N (337 lbs)
Ingress Protection	IP67
Actuator Material	Stainless Steel
Operating Temperature	-25°C to +60°C (-13°F to 140°F)
Mechanical Life	1,000,000 operations
Actuation Speed	Min: 100 mm/min, Max: 160 mm/sec

Applications / Use Case

The Allen Bradley 440G-MT47038 is widely used for guarding applications in automated machinery, manufacturing plants, and robotic systems where safeguarding personnel is critical. It is ideal for interlocking doors, gates, or access points that require locking during machine operation to prevent accidental exposure to hazardous moving parts. The solenoid locking mechanism ensures compliance with safety standards by maintaining guard closure until the machine control safely allows unlocking. Its robust design suits environments involving dust, moisture, or moderate temperature variations, making it well suited for factory automation, packaging lines, material handling, and heavy equipment protection. This switch helps maintain operational safety while minimizing downtime and maintenance effort[1][4][6].

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