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Allen Bradley

Allen Bradley 42EF-U2RFB-G4 RightSight Retroreflective Photoelectric Sensor

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ManufacturerAllen Bradley

Part number42EF-U2RFB-G4

Sensing Mode Retroreflective

Light Source Visible Red LED

Max Sensing Distance 4.5m (14.7ft)

Operating Mode AC/DC Light Operate

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Veteran-owned

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RightSight technology Visible Red LED AC/DC operation Light Operate mode 4.5m sensing distance 4-pin AC Micro QD connection

Product description

The Allen-Bradley 42EF-U2RFB-G4 is a RightSight photoelectric sensor operating in retroreflective mode. It utilizes a visible red LED light source and offers a maximum sensing distance of 4.5 meters (14.7 feet). This model is designed for AC/DC operation and features a light operate mode. The connection is established via a 4-pin AC Micro QD on a pigtail.

This sensor is well-suited for automation tasks in manufacturing, material handling, and logistics where precise object detection is critical. Its AC/DC capability and light operate function provide flexibility in different electrical environments.

Stanlo Automation, a veteran-owned surplus parts distributor, ensures you receive reliable industrial automation components. Partner with us for your Allen-Bradley sensor needs and benefit from our commitment to quality and service.

Technical specifications

Sensing Mode	Retroreflective
Light Source	Visible Red LED
Max Sensing Distance	4.5m (14.7ft)
Operating Mode	AC/DC Light Operate
Connection Type	4-pin AC Micro QD

Common applications

Manufacturing

Material Handling

Packaging

Assembly Lines

Conveyor Systems

Logistics

Compatible systems

Allen-Bradley PLCs Various AC/DC control systems Systems requiring light operate functionality

Also known as

Allen-Bradley 42EF Sensor Rockwell Automation Retroreflective Sensor 42EF-U2RFB-G4

Replaces / compatible with

This sensor is designed to replace older or similar Allen-Bradley 42EF series retroreflective sensors. Always confirm electrical and mounting compatibility for your specific application.

Technical note

Expert tip

The 4-pin AC Micro QD connection is designed for industrial environments and mates with standard 889D cordsets.

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Frequently asked questions

What type of output and operating mode does the Allen-Bradley 42EF-U2RFB-G4 sensor have?

The Allen-Bradley 42EF-U2RFB-G4 sensor operates in AC/DC with a light operate mode. The output type is typically a PNP or NPN power MOSFET, providing flexibility for integration into control systems.