ALLEN-BRADLEY 871TM-B8N18-H2 INDUCTIVE PROXIMITY SENSOR 871TMB8N18H2

Description:

The Allen‑Bradley 871TM‑B8N18‑H2 inductive proximity sensor is used in industrial automation systems to detect the presence of metallic objects without physical contact and provide robust switching signals. Commonly installed in conveyor systems, robotic cells, packaging equipment, and assembly lines for position sensing and object detection. Maintenance teams and system integrators use this sensor for automation upgrades, system repairs, and replacement of worn or failed proximity switches.

Applications:

The Allen‑Bradley 871TM‑B8N18‑H2 sensor is widely used in factory automation environments requiring reliable non‑contact metal detection. It is commonly found in material handling systems, pick‑and‑place machines, CNC equipment, packaging lines, and safety interlock systems where accurate and repeatable sensing of metallic targets supports process control, sequencing, and high‑speed operation.

Technical Specifications:

• Sensor type: Inductive proximity sensor
• Model: 871TM‑B8N18‑H2
• Sensing distance: 8 mm
• Supply voltage: 10–30 VDC
• Output type: NPN normally open (NO)
• Output current: Up to ~200 mA
• Response frequency: ~500 Hz
• Housing size: M18 threaded cylindrical
• Protection rating: IP67 (dust and water resistant)
• Connection: Pre‑wired cable output
• Operating temperature: –25 °C to +70 °C
• LED indicator: Built‑in operation indicator
• Mounting: Threaded cylindrical for stable installation

Common Replacements:

• Allen‑Bradley 871TM‑B8N18‑H1
• Omron E2E‑X8ME1
• Pepperl+Fuchs NJ18‑18GK‑E2