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Allen Bradley

Allen Bradley 440R-EM4R2 Guardmaster Safety Relay Expand Module

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ManufacturerAllen Bradley

Part number440R-EM4R2

Power Supply 24V DC

Safety Outputs 4 NO

Type Expand Module

Mounting Type Rail

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Veteran-owned

CAGE: 9NK75

4 Normally Open safety outputs Expansion module for safety relays 24V DC operation Compact DIN rail mount Simple logic configuration

Product description

The Allen-Bradley 440R-EM4R2 is a Guardmaster Safety Relay Expand Module that enhances safety monitoring capabilities in industrial applications. It operates on a 24V DC power supply and features four Normally Open (NO) safety outputs. This module is designed to be used as an expansion unit for basic safety relay devices, offering additional output contacts.

This expansion module is ideal for increasing the number of safety outputs in a system, allowing for the control of more actuators or safety circuits. It is commonly used in machine safety applications where additional output capacity is required, such as in manufacturing plants, assembly lines, and automated systems. The module offers versatility in logic, reset, and timing configurations.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Allen-Bradley 440R-EM4R2. We provide reliable access to quality industrial automation components, ensuring your safety systems are efficient and cost-effective.

Technical specifications

Power Supply	24V DC
Safety Outputs	4 NO
Type	Expand Module
Mounting Type	Rail
Enclosure	22mm

Common applications

Machine safety systems

Expanding safety output capacity

Control panels

Automated machinery

Industrial automation

Compatible systems

Compatible with Allen-Bradley Guardmaster basic safety relay devices

Also known as

Allen Bradley Guardmaster Expansion Relay, 440R EM4R2 Safety Module

Replaces / compatible with

The 440R-EM4R2 is an expansion module designed to work with compatible Allen-Bradley Guardmaster basic safety relay devices, providing additional safety outputs as needed.

Technical note

Expert tip

This expansion module is designed to connect to a basic safety relay and does not function as a standalone safety device. Ensure correct wiring to the parent relay.

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Frequently asked questions

What is the primary function of the Allen Bradley 440R-EM4R2 safety relay expand module?

The primary function of the Allen Bradley 440R-EM4R2 is to provide additional safety outputs (four Normally Open contacts) for a compatible basic safety relay. It allows users to expand the safety control capabilities of their existing system without replacing the entire safety relay.