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Allen-Bradley

Allen-Bradley 42EF-P2MPB-A2 Polarized Retroreflective PNP Photoelectric Sensor

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Allen-Bradley 42EF-P2MPB-A2 Polarized Retroreflective PNP Photoelectric Sensor
PRODUCT DOCUMENTATION

Product Information

Technical specifications, features, applications and purchasing information.

Allen-Bradley 42EF-P2MPB-A2 Polarized Retroreflective PNP Photoelectric Sensor

The Allen-Bradley 42EF-P2MPB-A2 Photoelectric Sensor is a RightSight polarized retroreflective sensing device used for non-contact object detection in machine and factory control systems. It uses a visible red light source and operates with a reflector to identify objects passing through the sensing path. The sensor provides complementary light-operate and dark-operate PNP outputs, supporting integration with compatible DC control equipment. Its 18 mm cylindrical mounting format and fixed 2 m cable connection support installation in compact machine assemblies and OEM equipment.

Product Features

The polarized retroreflective design helps distinguish the intended reflector from reflective objects in the detection area. Complementary output operation provides both light-operate and dark-operate signals for control-system configuration. The fixed cable connection reduces the need for a separate sensor cordset, while the cylindrical mounting design supports straightforward positioning and replacement. These characteristics make the Allen-Bradley 42EF-P2MPB-A2 Photoelectric Sensor suitable for new machine builds, equipment upgrades, sensor replacement, and routine maintenance work.

Technical Specifications

Brand Allen-Bradley
Model 42EF-P2MPB-A2
Product Category Photoelectric Sensor
Product Family RightSight
Product Type Polarized retroreflective sensor
Light Source Visible red
Output Type PNP, complementary light operate and dark operate
Operating Voltage 10.8–30V DC
Maximum Output Current 100 mA
Response Time 1 ms
Sensing Range 25 mm to 3 m
Connection Type 2 m cable
Sensitivity Adjustment Not adjustable
Protection Functions Short-circuit, reverse-polarity, false-pulse, and overload protection

Product Advantages

The Allen-Bradley 42EF-P2MPB-A2 Photoelectric Sensor combines non-contact sensing, complementary PNP outputs, visible alignment light, and a fixed cable connection in a compact mounting format. Its standardized RightSight configuration supports component identification during procurement and maintenance. For OEMs and plant maintenance teams, the documented model configuration helps simplify replacement planning and control-panel compatibility checks.

Applications

The sensor can be used for object presence detection, part positioning, product counting, and material-flow monitoring in factory automation, machine equipment, OEM machinery, conveyor control systems, packaging equipment, and automated handling systems where polarized retroreflective sensing is appropriate.

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