The Pepperl+Fuchs NBB20-L2-E2-V1 is a robust inductive proximity sensor engineered for reliable non-contact metal detection in industrial automation. With a 20 mm rated operating distance (flush mounting), it ensures precise positioning in compact setups, supported by a bidirectional, rotatable sensor head that enables flexible alignment in confined spaces. The 3-wire DC PNP output (normally open) operates across a 10–30 V DC range, integrating seamlessly with control systems while offering reverse polarity and pulsing short-circuit protection. Four 360° visible LEDs—green for power and yellow for switching state—provide intuitive real-time diagnostics, enhancing troubleshooting efficiency. A 440 Hz switching frequency and 5% hysteresis minimize signal fluctuations, making it ideal for high-speed applications like conveyor systems, robotic arm positioning, and part counting.
Built to withstand extreme industrial conditions, the NBB20-L2-E2-V1 features a durable polyamide (PA) housing with an IP68/IP69K protection rating, offering full resistance to dust, water, and high-pressure jet cleaning. It maintains stable performance across a -25°C to +85°C ambient temperature range (storage: -40°C to +85°C), adapting to both freezing warehouses and high-heat production zones. The sensor’s compact rectangular design (40 mm x 40 mm x 67 mm, 130 g) and M12 x 1 4-pin connector ensure easy installation in space-constrained or vibration-prone machinery, while its flush-mountable structure reduces interference from surrounding metal surfaces. Metal reduction factors (aluminum: 0.33, copper: 0.31, stainless steel 304: 0.74) enable adaptable detection across various metal types, enhancing versatility in diverse industrial environments.
Designed for worldwide industrial use, the NBB20-L2-E2-V1 complies with EN IEC 60947-5-2 safety standards and carries certifications including cULus listing, RoHS compliance, and CCC exemption for ≤36 V DC applications. Its functional safety parameters, such as an MTTFd of 1289 years and a 20-year mission time, ensure long-term reliability in non-safety-integrated systems. The sensor’s low voltage drop (≤2 V) and 200 mA operating current support stable power efficiency, while its 3-wire configuration simplifies wiring in complex automation networks. Ideal for automotive manufacturing, logistics, and process control, this sensor combines precision sensing, rugged construction, and global approvals, making it a trusted choice for critical industrial tasks requiring consistent performance and environmental durability.
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Attribute
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Details
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General Information
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Product Type
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Inductive Proximity Sensor
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Model
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NBB20-L2-E2-V1
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Manufacturer
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Pepperl+Fuchs
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Sensing Characteristics
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Rated Operating Distance
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20 mm (flush mounting)
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Assured Operating Distance
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0–16.2 mm (guaranteed reliable detection range)
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Actual Operating Distance
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18–22 mm (nominal detection range)
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Metal Reduction Factors
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Aluminum (0.33), Copper (0.31), Stainless Steel 304 (0.74), Brass (0.41)
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Switching Function
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Normally Open (NO)
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Electrical Parameters
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Supply Voltage
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10–30 V DC
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Output Type
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3-wire DC PNP (sourcing, single-state switching)
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Nominal Operating Current
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0–200 mA
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Off-State Current
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≤ 0.5 mA
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No-Load Supply Current
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≤ 20 mA
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Voltage Drop
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≤ 2 V
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Switching Frequency
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0–440 Hz (high-speed response for dynamic automation)
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Hysteresis
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Approximately 5% (minimizes signal fluctuations)
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Electrical Protection
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Reverse polarity protection; pulsing short-circuit protection; overload protection
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Indicators
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LEDs
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4 x 360° visible status indicators: Green (power), Yellow (switching state x2, signal direction)
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Mechanical Design
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Housing Material
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Polyamide (PA) with epoxy powder coating (corrosion/impact resistance)
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Sensing Face Material
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Polyamide (PA)
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Dimensions
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40 mm (W) × 40 mm (H) × 67 mm (L) (compact rectangular form for space-efficient mounting)
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Weight
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130 g
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Mounting Style
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Flush-mountable with bidirectional/rotatable sensor head (360° alignment flexibility)
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Connection Type
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M12 x 1 4-pin connector plug (secure, industrial-grade connection; supports 0.25–1.5 mm² conductors)
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Tightening Torque
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1.8 Nm (housing mounting stability)
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Environmental Ratings
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IP Rating
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IP68/IP69K (dust-tight, waterproof, and resistant to high-pressure jet cleaning)
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Operating Temperature Range
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-25°C to +85°C (ambient); -40°C to +85°C (storage)
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Certifications & Approvals
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Standards
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EN IEC 60947-5-2 (industrial switchgear safety), RoHS compliant
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Approvals
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cULus listed (USA/Canada), CCC exempt (≤36 V DC), CE marking (EU compliance), ATEX II 3D Ex tc IIIB T80°C DC (hazardous dust environments)
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Functional Safety
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MTTFd (Mean Time To Failure)
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1,289 years (estimated reliability for non-safety-integrated systems)
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Mission Time (Tm)
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20 years (long-term operational lifespan)
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Diagnostic Coverage (DC)
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0% (standard for non-safety-critical applications)
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Applications
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Industrial automation, conveyor systems, robotic positioning, automotive manufacturing, food processing (washdown environments), logistics, and hazardous dust zones (ATEX-certified)
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Product Tags:
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Pepperl+Fuchs NBB20-L2-E2-V1 Inductive Sensor | 20mm, 10-30V DC, IP68, M30, PNP NO | Extreme Environments Images
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