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Allen Bradley

Allen Bradley 440F-C251D Guardmaster Safety Switch

● In Stock 12-Mo Warranty Same-Day Dispatch Ships Worldwide 🎖 Veteran-Owned

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ManufacturerAllen Bradley

Part number440F-C251D

Type Guardmaster Safety Switch

Mounting Door Mount

Actuator Type (Add Actuator Type)

Enclosure Rating (Add Rating)

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Response within 1 business hour

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12-month warranty

All units tested

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Same-day dispatch

Order by 2pm CST

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Worldwide delivery

US, EU, Asia, Middle East

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Veteran-owned

CAGE: 9NK75

Door-Mounted Design Positive Break Contacts Safety Integrity Reliable Interlocking Long-Term Reliability

Product description

The Allen Bradley 440F-C251D is a specialized Guardmaster safety switch designed for specific machine guarding applications. It offers a high level of safety integrity with features like a door-mounted design and positive break contacts. This switch is built for long-term reliability.

This safety switch is ideal for applications involving hinged or sliding guards on machinery in sectors such as automotive manufacturing, plastics processing, and machine tool building. It provides a secure interlock to prevent access to hazardous areas during operation.

Stanlo Automation, a veteran-owned business, provides access to surplus industrial automation parts like the 440F-C251D. We ensure our inventory meets quality standards, offering you reliable components at competitive prices to minimize downtime and optimize your operational efficiency.

Technical specifications

Type	Guardmaster Safety Switch
Mounting	Door Mount
Actuator Type	(Add Actuator Type)
Enclosure Rating	(Add Rating)
Voltage	(Add Voltage)
Current	(Add Current)

Common applications

Machine Guarding

Hinged Guards

Sliding Guards

Industrial Safety

Automotive Manufacturing

Plastics Processing

Machine Tools

Compatible systems

Compatible with various Allen Bradley safety systems and control panels.

Also known as

Allen Bradley Guardmaster 440F-C251D 440F-C251D Door Safety Switch

Replaces / compatible with

This safety switch is part of the Allen Bradley Guardmaster series, designed for various safety applications.

Technical note

Expert tip

Ensure the actuator is fully inserted into the switch body when the guard is closed to achieve the positive break action and maintain safety integrity.

What happens next?

Email confirmation

Immediate receipt acknowledgment sent to you

Account manager assigned

Confirms your part's spec and condition

Your quote delivered

Tailored to your specific requirements

Frequently asked questions

What type of guard is the 440F-C251D typically used with?

The 440F-C251D is specifically designed for use with hinged or sliding machine guards. Its door-mounted configuration allows for easy integration into existing guard designs to provide a robust safety interlock.