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Allen Bradley

Allen Bradley 42EF-U2SFB-G4 RightSight Retroreflective Photoelectric Sensor

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ManufacturerAllen Bradley

Part number42EF-U2SFB-G4

Sensing Mode Retroreflective

Light Source Visible Red LED

Max Sensing Distance 4.5m (14.7ft)

Output Type PNP

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Veteran-owned

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RightSight technology Visible Red LED PNP output AC/DC operation Dark Operate mode 4.5m sensing distance

Product description

The Allen-Bradley 42EF-U2SFB-G4 is a RightSight photoelectric sensor designed for retroreflective applications. It features a visible red LED light source and a maximum sensing distance of 4.5 meters (14.7 feet). This sensor operates on AC/DC voltage and has a PNP output, designed for dark operate mode. Connection is via a 4-pin AC Micro QD on a pigtail.

This sensor is ideal for use in manufacturing, material handling, and packaging industries where precise object detection is required. Its PNP output and AC/DC compatibility allow for flexible integration into various automation systems.

Stanlo Automation, a veteran-owned surplus parts distributor, offers this Allen-Bradley sensor with a focus on quality and value. Source your industrial automation components from a trusted supplier committed to customer satisfaction.

Technical specifications

Sensing Mode	Retroreflective
Light Source	Visible Red LED
Max Sensing Distance	4.5m (14.7ft)
Output Type	PNP
Operating Mode	AC/DC Dark 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 PNP dark operate functionality

Also known as

Allen-Bradley 42EF Sensor Rockwell Automation PNP Sensor 42EF-U2SFB-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 PNP output on this sensor is a power MOSFET type, providing robust switching capabilities and protection against short circuits and reverse polarity.

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Frequently asked questions

What are the key specifications for the Allen-Bradley 42EF-U2SFB-G4?

The Allen-Bradley 42EF-U2SFB-G4 is a retroreflective photoelectric sensor with a 4.5m sensing distance, a visible red LED, PNP output, and AC/DC dark operate functionality. It features a 4-pin AC Micro QD connection.