Overview
The Allen-Bradley 871T-L2A12 is a tubular inductive proximity sensor designed for metal detection in industrial automation and control systems. Operating on 10-30VDC at 300mA, this sensor features a durable stainless steel enclosure and delivers reliable performance in demanding manufacturing, food processing, and packaging environments where corrosion resistance is critical.
Key Features
- Stainless steel tubular body for corrosion resistance and wash-down durability
- 12mm barrel diameter for compact mounting in tight spaces
- 3-wire PVC cable connection for standard industrial wiring
- Normally Open (NO) output contact configuration
- 2mm sensing range for precise metal detection
- 2000 Hz operating frequency for rapid response applications
Technical Specifications
- Input Voltage: 10-30 VDC
- Output Current: 300 mA
- Barrel Diameter: 12 mm
- Sensing Range: 2 mm
- Operating Frequency: 2000 Hz
- Output Type: NO (Normally Open)
- Enclosure Material: Stainless Steel
- Cable: 3-conductor PVC
- Connection Type: 3-Wire
Typical Applications
- Bottle and container detection on conveyor lines
- Metal part presence verification in assembly operations
- Packaging machinery position sensing
- Food and beverage processing automation
- Wet environment and wash-down area monitoring
- Pneumatic cylinder position feedback
Compatibility & Replacements
Compatible With
- Allen-Bradley PLC systems and CompactLogix controllers
- Siemens S7 systems via hardwired discrete input modules
- Mitsubishi MELSEC PLCs with 10-30VDC input cards
- Omron industrial control systems
- Standard discrete 24VDC control circuit boards
Replaces / Drop-In Replacement For
- Other 871T series models with same voltage and output configuration
- Verify exact part compatibility with your system integrator before ordering
Works With
- Any 10-30VDC industrial control system with discrete input capacity
- Hardwired logic circuits and relay-based automation
- Studio 5000 (via standard discrete input modules)
- TIA Portal (Siemens systems)
- PROFINET and EtherNet/IP networks (via gateway/bridge modules)
