The Pepperl+Fuchs NBB20-L2-B3-V1 is a high-performance inductive proximity sensor designed for precise non-contact detection of metal objects in industrial automation. Featuring a 20 mm rated operating distance (flush mounting) and a bidirectional, rotatable sensor head, it enables flexible alignment in tight spaces for accurate positioning. The sensor offers NO/NC programmable switching via its 2-wire AS-Interface output (V2.1), ensuring seamless integration with modern control systems across a voltage range of 26.5–31.9 V DC. Equipped with dual LED indicators—green for power, yellow for switching state, and red for errors—it provides clear diagnostic feedback. With a 150 Hz switching frequency and 5% hysteresis, it delivers stable, high-speed detection, ideal for applications requiring reliable signal transmission, such as conveyor systems, robotic arms, and machinery control.
Engineered to thrive in challenging conditions, the NBB20-L2-B3-V1 boasts a durable PA housing and sensing face, resisting corrosion, impact, and chemical exposure. Its IP69K protection rating ensures full resistance to high-pressure jet cleaning and dust, making it suitable for wet, dirty, or high-contamination environments. The sensor maintains consistent performance across a wide ambient temperature range (-25°C to +70°C) and stores safely at -40°C to +85°C, adapting to extreme industrial climates. The M12 x 1 4-pin connector enables quick, secure wiring, while its lightweight design (130 g) and flush-mountable structure simplify installation in compact or crowded machinery setups.
Designed for advanced automation networks, this sensor complies with AS-Interface V2.1 specifications, ensuring compatibility with modern industrial communication systems. It features reverse polarity protection and low no-load current (≤40 mA), enhancing energy efficiency and fault tolerance. Certified to EN IEC 60947-5-2 and listed by UL/CSA, it meets global safety standards for general-purpose industrial use, with CCC exemption for ≤36 V DC applications. The sensor’s MTTFd of 1330 years and 20-year mission time reflect its long-term reliability, while 0% diagnostic coverage suits non-safety-integrated setups. Ideal for automotive manufacturing, logistics, and process control, the NBB20-L2-B3-V1 combines precision, durability, and ease of integration to optimize industrial automation workflows.
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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-B3-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
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Metal Reduction Factors
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Aluminum (0.33), Copper (0.31), 304 Stainless Steel (0.74), Brass (0.41)
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Electrical Parameters
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Supply Voltage
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26.5–31.9 V DC (via AS-Interface bus system)
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Output Type
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2-wire AS-Interface (V2.1), NO/NC programmable
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Switching Frequency
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0–150 Hz
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Hysteresis
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~5% (typical, minimizes signal oscillations)
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Reverse Polarity Protection
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Yes
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No-Load Supply Current
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≤ 40 mA
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Mechanical Design
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Housing Material
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PA (polyamide)
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Sensing Face Material
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PA
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Dimensions
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Compact design with M12 × 1, 4-pin connector
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Weight
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130 g
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Mounting
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Flush-mountable with bidirectional/rotatable sensor head (flexible alignment in confined spaces)
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Connection
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M12 × 1 connector (4-pin, quick and secure wiring)
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Indicators
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LEDs
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Green (power status), Yellow (switching state), Red (error indication) for 360° visibility and diagnostic feedback
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Environmental Ratings
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IP Rating
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IP69K (resistant to high-pressure jet cleaning and dust ingress)
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Operating Temperature Range
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-25°C to +70°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 60947-5-2:2007, IEC 60947-5-2:2007
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Approvals
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cULus listed (USA/Canada), CSA approved, CCC exempt (≤36 V DC), RoHS compliant
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Functional Safety
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MTTFd (Mean Time To Failure)
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1,330 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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Communication
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AS-Interface Specification
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V2.1 (compatible with gateways ≥ V2.1)
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Node Type
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Standard node
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Additional Features
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Oscillator monitoring; configurable on/off delay (disconnectable); lightweight design for easy integration in compact machinery; compliant with industrial vibration/shock standards
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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, logistics, metalworking)
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Product Tags:
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Pepperl+Fuchs NBB20-L2-B3-V1 Inductive Sensor | 20mm Range, 10-30V DC, IP68, M30, PNP NC | Extreme Environments Images
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