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Allen Bradley 871A-TS4-NU2 Inductive Proximity Sensor

Allen Bradley 871A-TS4-NU2 4mm inductive proximity sensor.

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ManufacturerAllen Bradley

Part number871A-TS4-NU2

Sensing Range 4mm

Output Type DC 3-Wire

Polarity NPN

Function Normally Open (NO)

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12-month warranty

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Veteran-owned

CAGE: 9NK75

4mm Sensing Range NPN Output Normally Open 3-Wire DC Operation Compact Cylindrical Housing Durable Construction

Product description

The Allen Bradley 871A-TS4-NU2 is a compact inductive proximity sensor designed for detecting metallic objects. It features a 4mm sensing range, operates on a DC 3-wire system, and provides a Normally Open (NO) output with NPN polarity. This sensor is built to withstand demanding industrial environments.

Ideal for applications requiring reliable detection in manufacturing, assembly lines, packaging machinery, and material handling systems. It is commonly used in industries such as automotive, food and beverage, and general automation where precise positioning and object detection are critical.

Stanlo Automation, a veteran-owned business, offers a wide range of surplus industrial automation parts, including the Allen Bradley 871A-TS4-NU2. Sourcing from Stanlo ensures you receive quality components at competitive prices, backed by expert knowledge and a commitment to customer satisfaction.

Technical specifications

Sensing Range	4mm
Output Type	DC 3-Wire
Polarity	NPN
Function	Normally Open (NO)
Housing Style	Cylindrical Threaded
Connection	Integral Cable

Common applications

Object Detection

Machine Guarding

Position Sensing

Conveyor Systems

Assembly Lines

Packaging Machinery

Material Handling

Compatible systems

Standard DC 3-wire control systems PLCs with NPN input modules Automation control panels

Also known as

871A-TS4-NU2 sensor Allen Bradley 871A proximity AB 871A-TS4-NU2 Inductive sensor 871A

Replaces / compatible with

This sensor is part of the Allen Bradley 871A series and is designed as a direct replacement for similar models within this line, offering updated or equivalent performance.

Technical note

Expert tip

Ensure proper wiring for the 3-wire DC NPN configuration to avoid sensor damage or incorrect operation.

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Frequently asked questions

What is the sensing range and output type of the Allen Bradley 871A-TS4-NU2?

The Allen Bradley 871A-TS4-NU2 has a sensing range of 4mm. It is a DC 3-wire sensor with an NPN output, providing a Normally Open (NO) contact.