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Allen Bradley 42RLU-4000B Retroreflective Photoelectric Sensor

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ManufacturerAllen Bradley

Part number42RLU-4000B

Sensor Type Retroreflective

Sensing Range 50.8mm to 10.6 meters (35ft)

Input Voltage 102 - 132V AC

Response Time 5 ms

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12-month warranty

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Veteran-owned

CAGE: 9NK75

Retroreflective Sensing Up to 10.6m Sensing Distance Selectable Light/Dark Operation 5 ms Fast Response Time Infrared LED Emitter Screw Terminal Connection

Product description

The Allen-Bradley 42RLU-4000B is a retroreflective photoelectric sensor from the 4000B series, designed for reliable object detection. It features a sensing distance of up to 10.6 meters (35 feet) and operates on a 102-132V AC input voltage with a power consumption of 2VA. The sensor utilizes an Infrared LED light source and offers selectable Light/Dark operate modes with a 5 ms response time.

This sensor is suitable for various industrial automation applications, including material handling, packaging, and general object presence detection. Its retroreflective sensing mode means it requires a reflector to operate, making setup straightforward for many industrial environments. The EM Relay output provides versatile switching capabilities for control integration.

Stanlo Automation, a veteran-owned surplus parts distributor, provides the Allen Bradley 42RLU-4000B. We are your source for dependable industrial automation components. Trust us to supply quality parts backed by exceptional customer service, ensuring your operations are supported efficiently.

Technical specifications

Sensor Type	Retroreflective
Sensing Range	50.8mm to 10.6 meters (35ft)
Input Voltage	102 - 132V AC
Response Time	5 ms
Output Type	EM Relay (DPDT)
Light Source	Infrared LED

Common applications

Material Handling

Packaging Machinery

Assembly Lines

Object Presence Detection

Automated Control Systems

Logistics

Compatible systems

Compatible with industrial control systems that accept EM Relay outputs and operate within 102-132V AC.

Also known as

Allen Bradley 42RLU-4000B Photoswitch 4000B Series Retroreflective Sensor Allen Bradley 10.6m Sensor

Replaces / compatible with

The 42RLU-4000B is part of the Allen-Bradley 4000B series. Rockwell Automation discontinued this Heavy Duty Sensor on February 28, 2023.

Technical note

Expert tip

Requires a reflector for operation; ensure proper alignment for optimal performance within the 10.6m sensing range.

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Frequently asked questions

What is the sensing range and output type of the Allen Bradley 42RLU-4000B?

The Allen Bradley 42RLU-4000B retroreflective photoelectric sensor offers a sensing range of up to 10.6 meters (35 feet) and features a DPDT EM Relay output for flexible integration into control systems.