871TM-DH4NP12-A2
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Overview of Allen Bradley 871TM-DH4NP12-A2
The Allen Bradley 871TM-DH4NP12-A2 is a high-quality inductive proximity sensor designed for precise non-contact detection in industrial automation applications. Featuring a 12 mm barrel diameter and a 4 mm sensing range, this sensor excels in detecting metal objects reliably even in harsh environments. It operates on a 3-wire DC system with a PNP (source) output, making it compatible with a wide range of control systems. The sensor is built with a stainless steel tubular housing and a metal face, offering durability and resistance to mechanical stress. Its 2-meter PVC cable provides straightforward connection options for flexible installation. Additionally, the sensor is suitable for temperatures between -25°C and +70°C, enabling it to perform consistently in diverse industrial conditions.
Key Features of Allen Bradley 871TM-DH4NP12-A2
- Inductive proximity sensor with a 4 mm nominal sensing distance for reliable metal object detection
- 12 mm tubular stainless steel housing with metal face for durability
- 3-wire DC connection with PNP output configuration for easy integration
- 2-meter PVC cable with 3 conductors for flexible wiring options
- Operating voltage range of 10 to 30 V DC
- Temperature rating from -25°C to +70°C, suitable for a wide range of environments
- Unshielded sensor design allowing effective detection in various mounting scenarios
- Switching frequency up to 70 Hz for responsive detection
- IP67 rated housing ensures protection against dust and water ingress
Technical Specs of 871TM-DH4NP12-A2
| Specification | Details |
|---|---|
| Sensing Range | 4 mm |
| Barrel Diameter | 12 mm |
| Output Type | PNP (Source), Normally Open |
| Connection | 3-Wire DC PVC Cable (2 m length, 3 conductors) |
| Housing Material | Stainless Steel |
| Face Material | Metal |
| Operating Voltage | 10 - 30 V DC |
| Temperature Range | -25°C to +70°C |
| Switching Frequency | 70 Hz |
| Protection Rating | IP67 |
Applications / Use Case
The Allen Bradley 871TM-DH4NP12-A2 inductive proximity sensor is ideal for use in manufacturing and automation environments where precise object detection is critical. It is commonly applied in assembly lines, conveyor systems, and material handling to sense the presence or absence of metal parts without physical contact. Its robust stainless steel construction and IP67 rating allow installation in harsh industrial settings, including food processing, packaging, and automotive industries. The sensor’s compact size and flexible wiring make it suitable for tight spaces and retrofit projects. Additionally, this sensor integrates seamlessly with Allen Bradley PLCs and other automation controllers, supporting efficient system monitoring and control.
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