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Allen Bradley

Allen Bradley 871TM-N40NP30-D4 Inductive Proximity Sensor

Allen Bradley 871TM-N40NP30-D4 inductive proximity sensor.

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ManufacturerAllen Bradley

Part number871TM-N40NP30-D4

Sensing Face 40mm

Housing Thread 30mm

Output Type NPN

Function Normally Open (NO)

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Veteran-owned

CAGE: 9NK75

40mm extended sensing range 30mm threaded stainless steel housing NPN, NO output High IP67 environmental protection Durable construction for industrial environments Long-distance metallic object detection

Product description

The Allen Bradley 871TM-N40NP30-D4 is a high-performance inductive proximity sensor featuring a substantial 40mm sensing face and a robust 30mm threaded stainless steel housing. It is designed with an NPN output configuration and a Normally Open (NO) contact. The sensor operates reliably within a 10-30VDC voltage range and boasts an IP67 rating for protection against dust and water ingress.

This sensor is engineered for demanding applications requiring extended detection distances for metallic objects. It is widely implemented in heavy machinery, large-scale material handling systems, and automated manufacturing processes where longer reach and durability are paramount.

Stanlo Automation, a proud veteran-owned business, specializes in providing surplus industrial automation components. We offer the 871TM-N40NP30-D4 at competitive prices, ensuring you receive quality parts quickly to minimize operational disruptions and maintain productivity.

Technical specifications

Sensing Face	40mm
Housing Thread	30mm
Output Type	NPN
Function	Normally Open (NO)
Voltage	10-30VDC
Housing Material	Stainless Steel
IP Rating	IP67

Common applications

Heavy machinery

Large material handling

Automated manufacturing

Automotive assembly lines

Stamping presses

Industrial robotics

Compatible systems

Industrial control systems PLC applications Machine automation

Also known as

871TM-N40NP30-D4 switch Allen Bradley 40mm sensor NPN NO long range sensor 30mm threaded inductive

Replaces / compatible with

This 40mm sensor can replace older or other 871TM series models requiring a similar NPN, NO output and longer sensing range. Always confirm specifications before replacement.

Technical note

Expert tip

Due to its extended sensing range, ensure proper mounting to avoid false triggering from unintended metallic objects in the vicinity.

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Frequently asked questions

What is the maximum sensing distance for the Allen Bradley 871TM-N40NP30-D4 sensor?

The 871TM-N40NP30-D4 is designed for an extended sensing range of up to 40mm for metallic objects. This allows for detection at greater distances compared to standard proximity sensors.