The Pepperl+Fuchs NBB4-12GM50-E2 is a high-precision inductive proximity sensor designed for accurate non-contact detection of metallic objects in industrial automation. With a rated detection distance of 4 mm and flush mounting capability, it ensures reliable performance even in confined spaces, ideal for applications requiring precise positioning. Operating on a wide DC voltage range (5–36 V), the 3-wire PNP output (normally open) offers seamless integration with PLCs and control systems, while a switching frequency of up to 2500 Hz enables rapid response in high-speed processes. A yellow LED indicates the switching state for easy diagnostics, and its compact cylindrical design (M12 thread) with a nickel-plated brass housing ensures space-efficient installation in tight mechanical setups.
Built to withstand extreme conditions, this sensor features an IP68-rated housing, providing full protection against dust, water immersion, and high-pressure washdowns, making it suitable for harsh environments like automotive manufacturing or food processing. It operates reliably across a wide temperature range of -40°C to 85°C, resisting thermal fluctuations and mechanical vibrations. The rugged construction includes reverse polarity, short-circuit, and overvoltage protection, minimizing downtime and enhancing long-term reliability. The 2 m PVC cable with ferruled ends ensures secure connectivity, while the embeddable design eliminates interference from adjacent metals, guaranteeing consistent detection without false triggers.
The NBB4-12GM50-E2 excels in diverse industrial applications, from conveyor belt monitoring and robotic guidance to material handling and quality control. Its adaptable design supports various metallic targets with defined reduction factors (Al: 0.4, Cu: 0.35, 304 SS: 0.79), ensuring accurate detection across different materials. Compliant with international standards (EN IEC 60947-5-2, UL, CCC) and featuring a lightweight 86 g construction, it simplifies integration into new or retrofitted systems. The sensor’s high repeatability (±2% of rated distance) and low hysteresis (5%) make it a trusted choice for applications demanding precision and consistency, delivering optimal performance in challenging industrial environments.
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Attribute
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Description
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Product Name
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Inductive Proximity Sensor NBB4-12GM50-E2
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Manufacturer
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Pepperl + Fuchs
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Detection Principle
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Inductive
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Rated Detection Distance
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4 mm (flush mounting)
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Supply Voltage
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5–36 V DC
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Output Type
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3-wire PNP, Normally Open (NO)
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Switching Frequency
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0–2550 Hz
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Connection
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2 m PVC cable with ferruled ends (3-core, 0.34 mm²)
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Housing Material
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Nickel-plated brass with PBT sensing face
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Protection Class
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IP68 (dustproof and waterproof up to 1 m immersion)
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Ambient Temperature Range
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-40°C to +85°C
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Response Time
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≤10 ms
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Hysteresis
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≤5% of rated operating distance
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Repeatability
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±2% of rated operating distance
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LED Indication
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Yellow LED for switching state
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Reduction Factor
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Aluminum: 0.4; Copper: 0.35; Stainless Steel 304: 0.79
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Certifications
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UL, CE, cULus, CCC, EAC
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Cable Length
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2 m
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Cable Type
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PVC
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Weight
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86 g
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Compliance Standards
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EN 60947-5-2, IEC 60947-5-2
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Mounting Style
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Flush (embeddable)
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Reverse Polarity Protection
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Yes
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Short-Circuit Protection
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Yes (pulsing)
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Voltage Drop
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≤1 V
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Operating Current
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0–200 mA
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Pepperl+Fuchs NBB4-12GM50-E2 M50 Proximity Sensor | 4-12mm Range, IP67, IO-Link, Industrial Automation Ready Images
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