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Allen Bradley 440E-L22BNSM Guardmaster Safety Relay

Allen Bradley 440E-L22BNSM Guardmaster Safety Relay.

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ManufacturerAllen Bradley

Part number440E-L22BNSM

Type Safety Relay

Safety Functions E-Stop, Guard Monitoring

Input Channels 2

Output Contacts 3 NO, 1 NC

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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

Monitors safety interlock switches Provides E-stop functionality 3 NO and 1 NC output contacts 24VDC operation Compact design Robust safety relay

Product description

The Allen Bradley 440E-L22BNSM is a Guardmaster safety relay designed for monitoring safety interlock switches and other safety input devices. It provides essential safety functions to ensure personnel safety in industrial machinery. This unit features a compact design and is suitable for various safety control circuits.

Safety relays are critical components in modern industrial safety systems, preventing hazardous machine operations. The 440E-L22BNSM is used in applications where guarding is essential, such as on machine guards, access doors, and emergency stops across industries like automotive, packaging, and manufacturing.

Stanlo Automation, a veteran-owned supplier of surplus industrial automation parts, offers the 440E-L22BNSM. We ensure that you receive reliable, tested safety components to maintain compliance with safety standards and protect your workforce.

Technical specifications

Type	Safety Relay
Safety Functions	E-Stop, Guard Monitoring
Input Channels	2
Output Contacts	3 NO, 1 NC
Voltage	24VDC
Reset Type	Manual/Monitored

Common applications

Machine Guarding

E-Stop Circuits

Access Control

Industrial Safety Systems

Manufacturing Automation

Packaging Machinery

Automotive Assembly

Compatible systems

Safety Interlock Switches, E-Stop Buttons, Allen Bradley Safety Systems

Also known as

440EL22BNSM, Allen Bradley Safety Relay, Guardmaster Relay

Replaces / compatible with

The 440E-L22BNSM is a Guardmaster safety relay and can serve as a direct replacement for other safety relays with similar safety function and contact configurations within the Allen Bradley lineup.

Technical note

Expert tip

The 440E-L22BNSM requires a manual reset unless a monitored reset is implemented through its NC output, ensuring safe operation according to safety standards.

What happens next?

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Frequently asked questions

What are the output contact configurations for the Allen Bradley 440E-L22BNSM Guardmaster safety relay?

The Allen Bradley 440E-L22BNSM Guardmaster safety relay is equipped with 3 normally open (NO) output contacts and 1 normally closed (NC) output contact, suitable for a variety of safety circuit designs.