Overview
The Allen-Bradley 871L-XCB15S40 inductive proximity sensor is a robust, non-contact detection solution designed for demanding industrial environments. Part of the 871L series, this limit-switch-style sensor eliminates mechanical wear inherent in traditional NEMA limit switches while delivering reliable metal object detection in packaging, automotive, food processing, and motion control applications. The shielded design protects against false triggers and ensures consistent performance in high-vibration or electromagnetically noisy settings.
Key Features
- Non-contact metal detection—no physical contact required, eliminating wear and extending service life
- 15mm sensing distance with 500mA load capacity
- Limit switch style with shielded construction and 1NO/1NC contact configuration
- Voltage range 20–250V AC/DC for flexible deployment across legacy and modern control systems
- -13°F to 158°F operating temperature range suitable for indoor industrial environments
- CE and KC certifications for international standards compliance
Technical Specifications
The sensor features a compact, durable polyloy enclosure with quick-disconnect connection (1/2-14 NPT conduit compatible). Its 2-wire AC/DC wiring simplifies integration into existing panels and programmable logic controllers. The limit-switch form factor allows drop-in replacement for traditional mechanical switches in retrofit applications without panel redesign.
Typical Applications
Light-duty packaging, automotive welding equipment, and food processing washdowns all benefit from the 871L-XCB15S40’s non-contact reliability. Motion control systems, door sensors, material flow detection, and machine safety interlocks commonly employ this sensor family. The shielded design is particularly valuable in electrically noisy environments where mechanical switches or unshielded sensors fail prematurely.
Compatibility & Replacements
Compatible With
- Programmable logic controllers (PLCs) accepting 20–250V AC/DC inductive sensor inputs
- Traditional NEMA relay-based control panels
- Industrial motor control and automation systems
- Safety circuits requiring 1NO/1NC dual-contact outputs
- Allen-Bradley CompactLogix, ControlLogix, and SLC platforms
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The 871L series directly replaces mechanical limit switches in the same footprint and mounting configuration.
Works With
- EtherNet/IP and PROFINET industrial networks (via gateway modules)
- Analog and discrete I/O modules from Allen-Bradley and third-party manufacturers
- Standard 24VDC auxiliary control circuits
- Plug-in relay bases and terminal block connectors
