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Allen Bradley 888N-M9AF1-3F M9 PNP Normally Closed Sensor

Allen Bradley 888N-M9AF1-3F M9 PNP NC 3-Wire Sensor

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ManufacturerAllen Bradley

Part number888N-M9AF1-3F

Housing Size M9

Output Type PNP

Function Normally Closed

Connection 3-Wire

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CAGE: 9NK75

M9 Threaded Housing PNP Normally Closed Output 2mm Sensing Range 3-Wire Configuration DC Voltage Industrial Grade

Product description

The Allen Bradley 888N-M9AF1-3F is an industrial proximity sensor housed in an M9 threaded body. It provides a PNP output signal and is configured for normally closed (NC) operation, meaning the output is active when no object is detected. This 3-wire sensor operates on a DC voltage of 20.4-26.4V and has a sensing range of 2mm.

This sensor is utilized in applications requiring detection of metallic objects, particularly where a normally closed output is needed for safety interlocks or specific control logic. Common industries include manufacturing, material handling, and packaging, where precise object detection is critical for process control.

As a veteran-owned surplus parts distributor, Stanlo Automation is your go-to source for Allen Bradley components like the 888N-M9AF1-3F. We offer competitive pricing and reliable parts to support your automation needs.

Technical specifications

Housing Size	M9
Output Type	PNP
Function	Normally Closed
Connection	3-Wire
Sensing Distance	2mm
Voltage	20.4-26.4V DC

Common applications

Safety Interlocks

Presence Detection

Object Sensing

Conveyor Control

Machine Safety

Automation Systems

Compatible systems

PLCs with PNP input modules Control systems Automation panels

Also known as

Allen Bradley M9 NC Sensor 888N Series PNP NC 3-Wire Normally Closed Sensor

Replaces / compatible with

This sensor is suitable for applications requiring a normally closed PNP output from an M9 threaded proximity sensor. Verify compatibility with existing systems.

Technical note

Expert tip

The normally closed output is often used in safety circuits where the interruption of the output signal by an object indicates an unsafe condition.

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Frequently asked questions

What does 'normally closed' mean for the Allen Bradley 888N-M9AF1-3F?

For the Allen Bradley 888N-M9AF1-3F, 'normally closed' (NC) means that the sensor's output is active (conducting voltage) when no object is present. When a metallic object enters the sensing range, the output becomes inactive.