The Pepperl+Fuchs NBB15-U1-Z2 is a high-reliability inductive proximity sensor engineered for accurate non-contact detection of metal objects in industrial automation. With a 15 mm rated operating distance (flush mounting), it ensures precise positioning in compact or space-constrained setups, supported by a bidirectional, rotatable sensor head for flexible alignment. The 2-wire DC configuration offers NO/NC switching functionality, operating across a wide 5–60 V DC voltage range with reverse polarity and short-circuit protection, enhancing durability in fluctuating power environments. A 400 Hz switching frequency and 5% hysteresis minimize signal oscillations, while two 360° visible yellow LEDs indicate power and switching states for easy diagnostics. Ideal for high-speed applications like conveyor systems, robotic arms, and part counting, it balances precision with robust performance.
Built to withstand extreme conditions, the NBB15-U1-Z2 features a durable nylon (PA) housing with a metal base and epoxy powder coating, resisting corrosion, impact, and chemical exposure. Its IP68/IP69K protection rating ensures full waterproof and dustproof performance, capable of enduring high-pressure jet cleaning and prolonged submersion, making it suitable for wet, dusty, or high-contamination zones. The sensor maintains stable operation across a -25°C to +85°C ambient temperature range and stores safely at -40°C to +85°C, adapting to harsh industrial climates. Mechanical design highlights include screw terminal connections (supporting up to 2.5 mm² conductors) and a compact 225 g form factor, simplifying installation in vibration-prone machinery.
Designed for seamless automation networking, the NBB15-U1-Z2 complies with EN IEC 60947-5-2 and carries certifications like cULus, CSA, and CCC (for ≤36 V DC), ensuring global safety and compatibility. Metal reduction factors (aluminum: 0.3, copper: 0.3, stainless steel 304: 0.7) enable adaptable detection across various materials, enhancing versatility in automotive, logistics, and process control applications. Functional safety parameters include an MTTFd of 1133 years and a 20-year mission time, reflecting long-term reliability in non-safety-integrated systems. With its robust construction, flexible wiring, and wide operational range, this sensor is a trusted choice for demanding industrial environments requiring precise, durable metal detection.
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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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NBB15-U1-Z2
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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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15 mm (flush mounting)
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Assured Operating Distance
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0–12.15 mm (guaranteed reliable detection range)
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Metal Reduction Factors
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Aluminum (0.3), Copper (0.3), Stainless Steel 304 (0.7)13
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Electrical Parameters
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Supply Voltage
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5–60 V DC
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Output Type
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2-wire DC (NO/NC selectable)
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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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0–400 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; 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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Screw terminal (supports up to 2.5 mm² conductors with 1.8 Nm torque)7
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Indicators
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LEDs
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Two 360° visible yellow LEDs: Power status and switching state9
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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, CCC exempt (≤36 V DC), EAC compliant (TR CU 020/2011 for electromagnetic compatibility)917
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Functional Safety
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MTTFd (Mean Time To Failure)
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1,133 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 NBB15-U1-Z2 Inductive Sensor | 15mm Range, 10-30V DC, IP67, M30, PNP NC | Harsh Environments Images
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