PEPPERL+FUCHS NBB4-12GM50-E2 Inductive Proximity Sensor M12 4mm Flush PNP NO
Pepperl+Fuchs NBB4‑12GM50‑E2 Inductive Proximity Sensor
Product Overview
This inductive proximity sensor realizes non‑contact detection of metallic targets in industrial automation. It monitors object presence, position feedback and workpiece counting without physical contact. As a standard field signal component, it converts metal target proximity into electrical switching signal for PLC and control systems, widely deployed on production lines and automated machinery for reliable on‑site signal acquisition.
Product Advantages (Core Features)
✅ 4 mm rated sensing distance, compact M12 cylindrical housing for limited‑space installation ✅ 3‑wire DC NPN normally‑open output, simple connection with mainstream PLC controllers ✅ IP67 high protection rating, resistant to dust, water splashes and harsh workshop conditions ✅ Built‑in short‑circuit, overload and reverse‑polarity protection, prevents damage from field wiring errors ✅ Visible yellow LED status indicator for fast on‑site status check and troubleshooting ✅ Stable performance for ferrous and non‑ferrous metal detection ✅ Wide operating voltage range, adapts to common 10‑30 VDC industrial power supply ✅ Robust nickel‑plated brass housing, high mechanical stability for long‑term operation
Technical Parameters
| Item | Specification |
|---|---|
| Model | NBB4‑12GM50‑E2 |
| Sensing Principle | Inductive |
| Rated Sensing Distance | 4 mm (non‑flush mounting) |
| Assured Operating Distance | 0‑3.2 mm |
| Output Type | 3‑wire DC, NPN Normally Open (NO) |
| Operating Voltage | 10 … 30 V DC |
| No‑load Current | ≤ 15 mA |
| Switching Current | ≤ 200 mA |
| Max Switching Frequency | 500 Hz |
| Hysteresis | 1‑10 % |
| Housing Size | M12 × 1, Nickel‑plated Brass |
| Sensing Face | PBT |
| Protection Class | IP67 |
| Connection | 2 m PVC 3‑core cable |
| Operating Temperature | ‑25 ℃ ~ +70 ℃ |
| Protection Features | Short‑circuit, overload, reverse‑polarity protection |
| Compliance Standard | IEC 60947‑5‑2 |
Application Industries & Scenarios
Applicable Industries ‑ Machine tool & metal processing ‑ Packaging machinery ‑ Conveyor and logistics automation ‑ Material handling equipment ‑ Food & beverage production equipment ‑ General factory automation
Typical Application Scenarios
- Metallic workpiece presence detection on production lines
- Conveyor belt object counting and position monitoring
- Mechanical limit and home‑position signal feedback
- Automated assembly station part in‑place verification
- Machinery safety position monitoring
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