The Pepperl+Fuchs NBB20-U1-E2-C-V1 is a high-performance inductive proximity sensor designed for accurate non-contact detection of metal objects in industrial automation. With a 20 mm rated operating distance (flush mounting), it ensures precise positioning even in compact setups, supported by a bidirectional, rotatable sensor head for flexible alignment. The 3-wire DC PNP output (normally open) operates across 10–30 V DC, integrating seamlessly with control systems, while four 360° visible LEDs—green for power and yellow for switching state—enable easy diagnostics. Boasting a 440 Hz switching frequency and 5% hysteresis, it minimizes signal fluctuations, delivering stable performance for high-speed applications like conveyor control, robotic positioning, and part counting. Its robust design includes reverse polarity and pulsing short-circuit protection, enhancing durability in demanding workflows.
Engineered to thrive in extreme conditions, the NBB20-U1-E2-C-V1 features a durable PA/metal housing with an epoxy powder coating, resisting corrosion, impact, and vibration. Its IP68/IP69K protection rating ensures full waterproof and dustproof performance, capable of withstanding high-pressure washdowns and dusty environments. The sensor maintains reliable operation across a -25°C to +85°C ambient temperature range and stores safely at -40°C to +85°C, adapting to both freezing and high-heat industrial zones. Mechanical specifications include screw terminal connections (supporting up to 2.5 mm² conductors) and a compact 40 x 40 x 118 mm form factor (225 g), simplifying installation in space-constrained machinery. Its flush-mountable design and rugged build make it ideal for applications in automotive manufacturing, metalworking, and logistics.
Designed for global industrial use, the NBB20-U1-E2-C-V1 complies with EN IEC 60947-5-2 safety standards and carries certifications like UL listing and RoHS compliance, with CCC exemption for ≤36 V DC applications. Metal reduction factors (aluminum: 0.33, copper: 0.31, stainless steel 304: 0.74) allow adaptable detection across different materials, enhancing versatility in complex automation setups. Functional safety parameters include an MTTFd of 1289 years and a 20-year mission time, ensuring long-term reliability in non-safety-integrated systems. Supported by 3D CAD models and EPLAN data, this sensor enables seamless integration into control systems, making it a trusted choice for applications requiring precision, durability, and ease of installation, from conveyor networks to process control machinery.
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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-U1-E2-C-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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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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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 (normally open)
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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 operation)
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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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Mechanical Design
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Housing Material
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PA (polyamide) with epoxy powder coating (corrosion and impact resistance)
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Sensing Face Material
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PA
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Dimensions
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118 mm (length) × 40 mm (width) × 40 mm (height)
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Weight
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225 g
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Mounting
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Flush-mountable with bidirectional/rotatable sensor head
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Connection
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M12 x 1 4-pin connector (supporting up to 2.5 mm² conductors with 1.8 Nm torque)
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Indicators
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LEDs
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Four 360° visible LEDs: Green (power status), Yellow (switching state)
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Environmental Ratings
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IP Rating
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IP68/IP69K (resistant to high-pressure jet cleaning and dust ingress)
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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), RoHS compliant
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Approvals
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cULus listed, CSA approved, CCC exempt (≤36 V DC)
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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 applications)
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Mission Time (Tm)
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20 years
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Diagnostic Coverage (DC)
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0%
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Applications
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Industrial automation, conveyor systems, robotics, automotive manufacturing, and harsh environments requiring high-pressure washdown resistance (e.g., food processing, metalworking, logistics)
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Pepperl+Fuchs NBB20-U1-E2-C-V1 Inductive Sensor | 20mm Range, 10-30V DC, IP69K, M30, PNP NO | Washdown Areas Images
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