Overview
The Allen-Bradley 872C-A10N18-R3 is a WorldProxâ„¢ general-purpose inductive proximity sensor designed for reliable object detection without physical contact in industrial automation and motion control applications. This Series B sensor combines proven inductive technology with a compact tubular design, making it suitable for mounting in tight spaces while maintaining solid repeatability and accuracy in high-demand manufacturing environments.
Key Features
- 18mm tubular barrel with nickel-plated brass construction for corrosion resistance
- 10mm sensing distance for accurate, proximity-based object detection
- 2-wire AC design simplifies wiring and reduces panel space requirements
- Normally open (N.O.) output for flexible integration into safety and control circuits
- Micro QD (Quick Disconnect) AC connector for tool-free installation and field serviceability
- Non-shielded configuration suitable for general-purpose applications with minimal ferrous interference
- Operating frequency of 15 Hz ensures stable response in dynamic production environments
Technical Specifications
- Voltage: 20–250 Volt AC
- Operating Frequency: 15 Hz
- Sensing Distance: 10 mm
- Barrel Diameter: 18 mm
- Output Type: Normally Open (N.O.)
- Output Capacity: 500 mA
- Connection: Micro QD (AC)
- Barrel Type: Standard Tubular
- Material: Nickel-Plated Brass
- Mounting: Concise threaded barrel with radial side connector access
- Weight: 0.35 lbs (159 g)
- Shielding: Non-shielded
Typical Applications
The Allen-Bradley 872C-A10N18-R3 excels in light to moderate industrial automation scenarios where cost-effective, reliable detection is required without the complexity of DC-powered sensors. Common uses include:
- Assembly line object presence detection and part counting
- Conveyor system position sensing and jam detection
- Machine tool spindle and turret position monitoring
- Packaging machinery fill-level and product orientation sensing
- Automotive and appliance manufacturing control circuits
- General-purpose machine guarding and interlock circuits
Compatibility & Replacements
Compatible With
- Allen-Bradley ControlLogixâ„¢ and CompactLogixâ„¢ with discrete AC input modules
- Siemens SIMATIC S7 programmable controllers with AC input cards
- Mitsubishi FX and Q-series PLC AC input channels
- Omron CJ-series and CP-series controllers with AC inputs
- Schneider Electric Modicon M340 and M580 with AC sensor interfaces
- Legacy GE Fanuc Series 90 and Series 9000 with AC discrete inputs
- Standard industrial relay logic panels and hardwired control systems
- Micro QD AC connector mating receptacles and distribution systems
Replaces / Drop-In Replacement For
The 872C-A10N18-R3 is an exact part number reference; verify cross-compatibility with legacy Siemens IFM200 series and Banner P400 series sensors in high-frequency applications. For specific cross-model compatibility, consult your system integrator or the manufacturer’s substitution guide.
Works With
- Micro QD AC connectors and distribution harnesses
- Industrial AC power supplies (20–250V, 50/60 Hz)
- Relay coils and solenoid valve spools requiring N.O. discrete inputs
- Programmable controller analog and discrete I/O modules
- EtherNet/IP and PROFIBUS gateway modules (via external logic bridges)
- Standard industrial control wiring (18–14 AWG recommended for 500 mA loads)
