Overview
The Allen-Bradley 872C-D5NP18-N4 is a shielded inductive proximity sensor from the 872C product line. This 18mm inductive proximity sensor is designed for detecting metal targets in industrial automation systems, providing a 5mm sensing distance with a 3-wire PNP normally open output and operates on 10–30 VDC. The -N4 designation indicates a specific connector configuration optimized for quick integration into control systems.
Key Features
- Shielded 18mm tubular design for industrial environments
- 3-wire PNP normally open output with 10–30 VDC operation
- Shielded construction and Micro DC quick-disconnect interface for reliable installation in demanding environments
- Operating frequency of 1500 Hz with 200 mA maximum load current
- Non-contact detection ensures extended sensor life and minimizes maintenance
- UL, CE, CUL, and other international safety certifications
Technical Specifications
- Barrel Diameter: 18 mm
- Sensing Distance: 5 mm
- Operating Voltage: 10–30 VDC
- Output Type: Normally Open Sourcing (PNP)
- Maximum Load Current: 200 mA
- Operating Frequency: 1500 Hz
- Connector Type: 4-pin Micro DC quick-disconnect (M12)
- Housing Material: Metal (shielded)
- Detection Type: Inductive (metallic objects)
Typical Applications
- Presence detection on conveyors or machine tools
- Production line position sensing and part counting
- Machine automation and motion control systems
- High-speed object detection in confined spaces
- Proximity switching for industrial machinery
Compatibility & Replacements
Compatible With
- Allen-Bradley PLCs and control systems
- Rockwell Automation CompactLogix and ControlLogix platforms
- EtherNet/IP industrial networks
- Standard 10-30VDC automation power supplies
- Industrial automation controllers with PNP proximity inputs
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The 872C-D5NP18-N4 is part of the 872C proximity sensor family and may replace similar 872C variants depending on your connector and output requirements.
Works With
- Studio 5000 Logix Designer programming software
- RSLogix 5000 legacy platforms
- PLC ladder logic and structured text programming
- Industrial Ethernet communication networks
- Standard automation control schemes (proximity input modules)




