Overview
The Allen-Bradley 871C-P8B18 is a miniature cylindrical inductive proximity sensor designed for solid-state detection of ferrous and nonferrous metal objects without physical contact. Part of the Bulletin 871C family, this sensor is engineered for general-purpose industrial automation applications where reliable, touch-free object sensing is essential. The prewired cable configuration ensures fast integration into existing control systems.
Key Features
- Solid-state inductive sensing technology for non-contact metal detection
- Compact 8mm cylindrical body for space-constrained installations
- Prewired cable harness for simplified installation and integration
- Designed to detect both ferrous and nonferrous metals reliably
- Series A specification ensures compatibility with standard control architectures
Technical Specifications
The 871C-P8B18 operates as a general-purpose inductive proximity sensor for motion control and object detection in industrial environments. Key specifications align with the standard Allen-Bradley 871C Bulletin lineup, which provides consistent performance across multiple voltage and sensing distance configurations.
- Series: Series A
- Sensor Type: Cylindrical inductive proximity switch
- Detection Type: Ferrous and nonferrous metals
- Output Type: Solid-state switching
- Cable Type: Prewired connector cable
- Body Material: Brass/stainless construction
Typical Applications
The 871C-P8B18 is well-suited for:
- Conveyor and material handling systems with metal detection requirements
- Automated assembly line position sensing and limit detection
- Motion control feedback in machinery and industrial equipment
- Parts presence verification in production automation
- General-purpose object detection in confined or tight-fit mounting spaces
Compatibility & Replacements
Compatible With
- Rockwell Automation CompactLogix PLCs (1756/1769 series)
- ControlLogix and SoftLogix controllers
- Standard 24 VDC and 10-30 VDC industrial control systems
- Analog and digital I/O modules from major automation vendors
- EtherNet/IP and standard industrial networks via appropriate I/O blocks
Replaces / Drop-In Replacement For
The 871C-P8B18 is a direct replacement for other 871C miniature cylindrical sensors in the same voltage class and sensing distance range. Verify compatibility with your system integrator before ordering to ensure identical mounting, connector type, and performance specifications match your application requirements.
Works With
- Studio 5000 (Logix Designer) for controller programming
- Allen-Bradley CompactLogix and ControlLogix platforms
- Standard 24 VDC industrial control circuits
- Industrial sensor interface modules and signal conditioning equipment
- Hardwired control panels and DIN-rail mounted I/O terminals
