Overview
The Allen-Bradley 873P-D18P1-2200-D4 is a versatile ultrasonic proximity sensor engineered for harsh industrial environments. This 18mm plastic barrel sensor delivers reliable diffuse sensing across a maximum 2200mm range, making it ideal for long-distance object detection in material handling, packaging, food processing, and transportation systems. With its programmable architecture and field-proven durability, the 873P series provides drop-in flexibility for automation engineers and maintenance technicians.
Key Features
- Extended Sensing Range: 200–2200mm detection distance accommodates various mounting and application scenarios.
- PNP Discrete Output: Single (1) NO/NC configurable output compatible with standard industrial controllers and safety systems.
- Micro QD Connector: 4-pin DC quick-disconnect termination simplifies field installation, replacement, and integration.
- Programmable Configuration: Pushbutton adjustment enables on-site tuning of sensing parameters without external tools or software.
- Industrial-Duty Design: Plastic barrel construction and programmable thresholds ensure performance in demanding environments.
Technical Specifications
- Supply Voltage: 0–15 VDC
- Output Current: 100 mA maximum
- Sensing Distance: 200–2200mm (7.87–86.61 inches)
- Barrel Diameter: 18mm
- Operating Frequency: 1 Hz
- Output Type: (1) PNP Discrete (NO/NC configurable)
- Connector Type: Micro QD (DC, 4-Pin)
- Material: Plastic barrel with screw-thread mounting
- Operating Temperature: –20°C minimum
- Housing Type: Cylinder, screw-thread
- Certifications: CCC, C-TICK
Typical Applications
- Material handling conveyor systems and sorting equipment
- Packaging line detection and positioning
- Food processing level and fill detection
- Transportation and logistics automation
- Industrial object presence/absence sensing
- Distance measurement in automated assembly
Compatibility & Replacements
Compatible With
- Allen-Bradley CompactLogix, ControlLogix, and MicroLogix PLCs via standard analog/discrete I/O modules
- Siemens S7-1200, S7-1500, and compatible controllers with PNP input cards
- Mitsubishi, Omron, and other industrial control systems supporting 0–15 VDC PNP sensors
- Standard industrial relay logic and safety circuits
- Motor starters, counters, and proximity-triggered automation devices
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The 873P-D18P1-2200-D4 is a direct replacement for earlier 873P 2200mm configurations requiring identical pinout, voltage, and sensing range specifications.
Works With
- Studio 5000 (Allen-Bradley programming and configuration)
- TIA Portal and STEP 7 (Siemens automation)
- EtherNet/IP and PROFINET networks (via gateway modules)
- Standard industrial sensor integration platforms
- M12 and Micro QD quick-disconnect accessories
















