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Allen Bradley 871A-TS3-PM Inductive Proximity Sensor

Allen Bradley 871A-TS3-PM Inductive Proximity Sensor.

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ManufacturerAllen Bradley

Part number871A-TS3-PM

Sensing Range 3mm

Output Type PNP Normally Closed (NC)

Voltage 10-30V DC

Connector M12

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Non-contact detection 3mm sensing range PNP Normally Closed (NC) output 10-30V DC operation M12 connector Fail-safe operation

Product description

The Allen Bradley 871A-TS3-PM is an inductive proximity sensor designed for non-contact detection of metallic objects, featuring a PNP output and a normally closed (NC) configuration. It has a sensing range of 3mm and utilizes an M12 connector for easy integration. This sensor operates within a 10-30V DC voltage range.

This sensor is ideal for safety-related applications or systems where a normally closed output is preferred for fail-safe operation, such as machine guarding or critical positioning. Its PNP output is compatible with many PLC input modules, commonly used in industries like automotive, aerospace, and specialized machine building.

Stanlo Automation, a veteran-owned business specializing in surplus industrial automation parts, offers the 871A-TS3-PM. We ensure reliable sourcing and prompt delivery to keep your critical systems operational.

Technical specifications

Sensing Range	3mm
Output Type	PNP Normally Closed (NC)
Voltage	10-30V DC
Connector	M12
Body Style	Cylindrical

Common applications

Machine guarding

Safety interlocks

Critical positioning

Automotive assembly

Aerospace

Specialized machine controls

Compatible systems

PLCs with PNP DC inputs Safety Relays DC Control Circuits

Also known as

871A-TS3-PM sensor Allen Bradley 871A PNP NC proximity 871A series NC sensor AB 871A-TS3-PM

Replaces / compatible with

This PNP NC sensor can replace other Allen Bradley or equivalent sensors requiring a normally closed output for safety or specific logic functions.

Technical note

Expert tip

The NC configuration ensures that if the sensor experiences a fault, such as a broken wire, it mimics the condition of an object being detected, triggering a safe state.

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Frequently asked questions

What is the benefit of the normally closed (NC) output on the 871A-TS3-PM?

A normally closed output on the 871A-TS3-PM means the sensor output is active (low) when no object is present and deactivates when an object is detected. This is crucial for fail-safe applications where loss of signal indicates an anomaly.