Overview
The Allen-Bradley 871TM-M10NN18-A2 is a tubular inductive proximity sensor engineered for dependable object detection in industrial automation systems. This sensor features stainless steel construction and is rated for 10mm sensing distance, making it ideal for metallic object detection in machinery, assembly lines, and process automation. The Series B design delivers consistent switching performance with standard electrical protection against noise, overload, and reverse polarity.
Key Features
- Tubular stainless steel barrel for corrosion resistance and durability
- 10mm sensing distance for precise metallic object detection
- 18mm barrel diameter for standard mounting in compact spaces
- Shielded design minimizes electromagnetic interference
- DC-powered inductive detection with NPN output configuration
- Built-in protection against short circuit, overload, and transient noise
Technical Specifications
- Sensing Distance: 10mm (nominal)
- Housing Material: Stainless Steel (tubular)
- Housing Diameter: 18mm
- Output Type: NPN (Sink)
- Power Supply: DC 10–30V
- Load Current: 200mA maximum
- Switching Frequency: 100 Hz typical
- Cable Type: Micro Quick Disconnect (M12 connector compatible)
- Operating Temperature: −25°C to +70°C
- Shielding: Yes
- Protection Rating: Short circuit, overload, reverse polarity, RF interference
- Series: Allen-Bradley 871TM Series A/B
Typical Applications
The Allen-Bradley 871TM-M10NN18-A2 is commonly used in:
- Automated assembly and packaging machinery
- Conveyor system object detection
- Production line position sensing
- Robotic arm collision avoidance
- Material handling equipment
- Press and punch safety interlocks
- Counting and sorting systems
Compatibility & Replacements
Compatible With
- Allen-Bradley CompactLogix and ControlLogix controllers
- Rockwell Automation automation platforms
- Standard 24VDC industrial control systems
- Microprocessor-based safety controllers
- M12 connector interface systems
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The 871TM-M10NN18-A2 is compatible with other 871TM variants sharing the same mounting form factor and electrical specifications. Common replaced models include earlier Allen-Bradley 871TM Series A configurations with identical sensing distance and output type.
Works With
- Allen-Bradley Studio 5000 Logix Designer for system configuration
- Standard 24VDC industrial I/O modules
- Micro Quick Disconnect industrial connectors
- SIL-rated safety systems (when used within rated parameters)
- Analog and discrete input modules across major PLC platforms
