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Allen Bradley 42RLU-4200B Polarized Retroreflective Sensor

Allen Bradley 42RLU-4200B Polarized Retroreflective Photoelectric Sensor

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ManufacturerAllen Bradley

Part number42SMF-7100

Sensor Type Polarized Retroreflective

Sensing Range Up to 7 meters

Input Voltage 102 - 132 VAC

Response Time 5 ms

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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

Polarized Beam Technology Detects Shiny Objects 7m Sensing Range Selectable Light/Dark Operation 5 ms Response Time Infrared LED Emitter

Product description

The Allen-Bradley 42RLU-4200B is a polarized retroreflective photoelectric sensor, part of the 4000B series, designed for robust object detection. It features a sensing range of up to 7 meters and operates on 102-132VAC. Utilizing an Infrared Emitter LED, it offers selectable light/dark operation and a fast 5 ms response time.

This sensor's polarized beam technology is beneficial for detecting shiny objects that might otherwise cause false positives with standard sensors. It is well-suited for various industrial applications, including automated material handling, packaging systems, and assembly lines where consistent and reliable detection is crucial.

Stanlo Automation, a veteran-owned surplus parts distributor, is your reliable source for the Allen Bradley 42RLU-4200B. We provide quality industrial automation components and dedicated customer service to ensure your operational needs are met efficiently. Partner with us for your surplus parts requirements.

Technical specifications

Sensor Type	Polarized Retroreflective
Sensing Range	Up to 7 meters
Input Voltage	102 - 132 VAC
Response Time	5 ms
Light Source	Infrared Emitter LED
Output	EM Relay

Common applications

Automated Material Handling

Packaging Systems

Assembly Lines

Industrial Automation

Logistics

Machine Vision Support

Compatible systems

Compatible with industrial control systems requiring 102-132V AC and accepting EM Relay outputs.

Also known as

Allen Bradley 42RLU-4200B Photoswitch 4000B Series Polarized Sensor Allen Bradley 7m IR Sensor

Replaces / compatible with

The 42RLU-4200B is part of the Allen-Bradley 4000B series. Its polarized retroreflective capability makes it suitable for applications where standard retroreflective sensors may struggle with reflective surfaces.

Technical note

Expert tip

The polarized filter helps differentiate between the emitted light reflected directly from the target and ambient reflections, crucial for detecting shiny surfaces.

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Frequently asked questions

Can the Allen Bradley 42RLU-4200B detect shiny objects?

Yes, the Allen Bradley 42RLU-4200B features polarized retroreflective technology specifically designed to reliably detect shiny or reflective objects that can cause issues with standard photoelectric sensors.