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Allen Bradley

Allen Bradley 440R-S35002 CU3 Safety Relay

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ManufacturerAllen Bradley

Part number440R-S35002

Power Supply 110V AC

Safety Outputs 2 NO

Auxiliary Outputs 1 NC

Enclosure 45 mm

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2 NO Safety Outputs 1 NC Auxiliary Output 110V AC Power Automatic/Manual Reset CU3 Back EMF Monitor Guardmaster Series

Product description

The Allen-Bradley 440R-S35002 is a CU3 safety relay, often used as a back EMF monitor, designed for safety-related circuits. It operates on 110V AC and provides 2 normally open (NO) safety outputs and 1 normally closed (NC) auxiliary output. This relay is part of the Guardmaster series.

This safety relay is ideal for applications monitoring emergency stop circuits, safety mats, and interlock switches in industrial environments such as manufacturing and processing plants. It ensures adherence to safety regulations and personnel protection.

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Technical specifications

Power Supply	110V AC
Safety Outputs	2 NO
Auxiliary Outputs	1 NC
Enclosure	45 mm
Reset	Automatic/Manual
Model	CU3

Common applications

Emergency Stop Monitoring

Safety Mat Monitoring

Interlock Switches

Machine Safety

Industrial Control

Compatible systems

Compatible with 110V AC power systems and suitable safety input devices.

Also known as

Allen-Bradley CU3 Back EMF Monitor Guardmaster 440R-S35002

Replaces / compatible with

Designed for safety monitoring and back EMF monitoring applications.

Technical note

Expert tip

This relay is suitable for monitoring safety circuits and can also function as a back EMF monitor in appropriate applications.

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Frequently asked questions

What is the power supply voltage for the Allen Bradley 440R-S35002 safety relay?

The Allen Bradley 440R-S35002 safety relay operates on a 110V AC power supply. This voltage requirement should be considered during system design and installation.