Overview
The Allen-Bradley 872C-A10N18-R3 is a Bulletin 872C WorldProx™ tubular inductive proximity sensor designed for general-purpose industrial detection applications. This 2-wire AC model operates on 20–250 VAC and delivers a 10 mm non-shielded sensing distance with normally open (N.O.) output. The 18 mm nickel-plated brass barrel construction ensures durability in demanding environments while maintaining compact dimensions for tight mounting spaces.
Key Features
- 2-Wire AC operation simplifies wiring and reduces control panel complexity
- 10 mm sensing distance enables precise object detection and positioning
- 18 mm tubular form factor fits standard mechanical mounts and tight spaces
- Nickel-plated brass construction resists corrosion in wet or harsh conditions
- Normally Open (N.O.) output compatible with standard AC control logic
- Micro QD (Quick Disconnect) connector provides tool-free maintenance and replacement
Technical Specifications
- Part Number: 872C-A10N18-R3
- Supply Voltage: 20–250 VAC (± 10%)
- Rated Current: 500 mA
- Barrel Diameter: 18 mm
- Sensing Distance: 10 mm (non-shielded)
- Output Contact: Normally Open (N.O.)
- Connection Type: Micro QD (AC)
- Operating Frequency: 15 Hz
- Barrel Material: Nickel-plated brass
- Mounting: Concise / threaded
- Wire Configuration: 2-wire AC
Typical Applications
The 872C-A10N18-R3 is ideal for:
- Conveyor and material handling systems requiring non-contact position sensing
- Packaging machinery and assembly automation
- Machine tool and lathe position detection
- Automated door and gate control systems
- Count and sorting applications in manufacturing environments
- General-purpose machine automation where cost-effective, reliable sensing is required
Compatibility & Replacements
Compatible With
- Allen-Bradley CompactLogix and ControlLogix PLC systems with AC input modules
- Siemens S7-1200/1500 with AC-rated input terminals
- Mitsubishi FX and Q-series PLCs (AC input specification)
- Omron CP and CJ-series controllers with AC sensors
- Standard industrial AC control circuits and relay logic systems
- EtherNet/IP networks via appropriate gateway modules
Replaces / Drop-In Replacement For
- Most general-purpose 2-wire AC inductive sensors in the 18 mm tubular form factor
- Earlier Allen-Bradley proximity sensor models in similar mechanical envelope
- OEM equipment using standard 18 mm 2-wire AC proximity sensors
Works With
- RS Logix / Studio 5000 programming platforms (AC input configuration)
- TIA Portal (Siemens) with AC digital input modules
- Mitsubishi GX Works engineering software
- Omron CX-Programmer and Sysmac Studio
- Standard 24 VDC I/O module AC input channels with external 24 VDC load resistor
- Any control system accepting discrete 2-wire AC NO switch inputs
