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Allen Bradley

Allen Bradley 871P-B20N40-R3 Inductive Proximity Sensor

Allen Bradley 871P-B20N40-R3 Inductive Proximity Sensor with 20mm sensing range.

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ManufacturerAllen Bradley

Part number871P-B20N40-R3

Sensing Distance 20mm

Output NPN

Connection 4-Pin M12 Connector

Housing Diameter 30mm

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12-month warranty

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Veteran-owned

CAGE: 9NK75

Non-contact detection NPN output 20mm sensing range Durable housing Reliable performance

Product description

The Allen Bradley 871P-B20N40-R3 is an inductive proximity sensor designed for detecting metallic objects without physical contact. It features a 20mm sensing distance and a standard cylindrical housing.

This sensor is ideal for a wide range of industrial applications, including material handling, packaging machinery, and assembly lines. It is commonly used in industries such as automotive, food and beverage, and general manufacturing where reliable object detection is critical.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Allen Bradley 871P-B20N40-R3. We provide reliable automation components to keep your operations running smoothly, backed by expert service and competitive pricing.

Technical specifications

Sensing Distance	20mm
Output	NPN
Connection	4-Pin M12 Connector
Housing Diameter	30mm
Sensing Face	Front

Common applications

Assembly lines

Packaging machinery

Material handling

Robotics

Metal fabrication

Compatible systems

PLCs Industrial control systems Automation controllers

Also known as

Allen Bradley 871P-B20N40-R3 proximity switch 871P Series sensor AB 871P-B20N40-R3

Replaces / compatible with

Replaces older Allen Bradley proximity sensors with similar specifications. Consult manufacturer documentation for exact replacement details.

Technical note

Expert tip

Ensure the target object is sufficiently metallic and within the 20mm sensing range for optimal detection by the 871P-B20N40-R3.

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Frequently asked questions

What is the sensing distance of the Allen Bradley 871P-B20N40-R3?

The Allen Bradley 871P-B20N40-R3 inductive proximity sensor has a sensing distance of 20mm. This allows it to reliably detect metallic objects within this range.