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Allen Bradley 42RLR-4000B Transmitted Beam Receiver Sensor

Allen Bradley 42RLR-4000B Transmitted Beam Receiver Photoelectric Sensor

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ManufacturerAllen Bradley

Part number42RLR-4000B

Sensor Type Transmitted Beam Receiver

Sensing Range Up to 274 meters (900ft)

Voltage 102-132V AC

Connection Type Screw

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Long Range Detection (up to 274m) Transmitted Beam System (Receiver) 102-132V AC Operation Screw Terminal Connection Robust Industrial Design

Product description

The Allen-Bradley 42RLR-4000B is a transmitted beam photoelectric sensor, specifically a receiver, designed for long-range object detection. It operates within a 102-132V AC voltage range and features a screw terminal connection. This sensor is part of a two-part system, requiring a separate transmitter (source) to function. The Infrared (IR) Emitter LED is used in conjunction with a compatible transmitter.

With an impressive sensing range of up to 274 meters (900 feet), the 42RLR-4000B is ideal for large-scale industrial applications such as perimeter security, long conveyor lines, and outdoor material handling. It's often used in conjunction with a 42RLL-4000B (source) for complete beam-break detection across significant distances.

Stanlo Automation, your trusted veteran-owned surplus parts distributor, offers the Allen Bradley 42RLR-4000B. We ensure you get reliable industrial components. Source your automation needs from us and experience efficient service and quality parts designed to keep your operations running.

Technical specifications

Sensor Type	Transmitted Beam Receiver
Sensing Range	Up to 274 meters (900ft)
Voltage	102-132V AC
Connection Type	Screw
Light Source (System)	Infrared (IR)
Standard	CE, CSA, CUL, KC, UL

Common applications

Large Conveyor Systems

Perimeter Security

Outdoor Material Handling

Long Distance Detection

Automated Warehousing

Compatible systems

Requires a compatible Allen-Bradley 4000B series transmitted beam source (e.g., 42RLL-4000B) for operation.

Also known as

Allen Bradley 42RLR-4000B Photoswitch 4000B Series Beam Receiver Allen Bradley Long Range Receiver

Replaces / compatible with

The 42RLR-4000B is part of the Allen-Bradley 4000B series and is a receiver for a transmitted beam system. It was discontinued by Rockwell Automation on February 28, 2023.

Technical note

Expert tip

This is the receiver component of a transmitted beam system; a separate transmitter (e.g., 42RLL-4000B) is required for operation.

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Frequently asked questions

What is the maximum sensing distance for the Allen Bradley 42RLR-4000B receiver?

The Allen Bradley 42RLR-4000B transmitted beam receiver, when paired with its corresponding transmitter, can detect objects up to a remarkable distance of 274 meters (900 feet). This makes it suitable for very long-range applications.