The Pepperl+Fuchs NBB20-U1-Z2 is a high-performance inductive proximity sensor designed for precise non-contact metal detection in industrial automation. Featuring a bidirectional and rotatable sensor head, it enables flexible alignment in tight or complex setups, optimizing detection accuracy across diverse orientations. Equipped with two 360° visible yellow LEDs, it provides clear real-time feedback on switching status, simplifying diagnostics and maintenance. With a rated operating distance of 20 mm (flush mounting) and a 2-wire DC configuration, it offers reliable performance across a wide voltage range (5–60 V DC), supporting both normally open (NO) and normally closed (NC) switching functions. Its 5% hysteresis and 250 Hz switching frequency ensure stable, high-speed response, making it ideal for precision tasks in machinery, robotics, and conveyor systems.
Engineered to withstand extreme conditions, the NBB20-U1-Z2 features a durable housing made of PA/metal with an epoxy powder coating, resisting corrosion, impact, and vibration. Its IP68/IP69K protection rating ensures full waterproof and dustproof performance, even in 高压清洗 or submerged environments, while the wide operating temperature range (-25°C to +85°C) suits both freezing and high-heat industrial zones. The sensor’s screw terminal connections accommodate up to 2.5 mm² conductors, enabling secure and straightforward installations, and its compact, lightweight design (225 g) simplifies integration into space-constrained machinery. Compliance with global standards like EN IEC 60947-5-2 and UL listing guarantees safety and reliability in international industrial applications.
Designed for adaptability, this inductive sensor offers a 200 mA operating current and low off-state current (0.5 mA), optimizing energy efficiency while delivering consistent detection for various metals (e.g., aluminum: 0.3, copper: 0.3, 304 stainless steel: 0.7 reduction factors). The 2-wire DC setup ensures easy wiring to PLCs and control units, while reverse polarity and short-circuit protection enhance operational safety. Its modular design, supported by 3D CAD models and EPLAN data, streamlines installation and system integration. Ideal for applications ranging from mobile machinery and automotive manufacturing to process automation, the NBB20-U1-Z2 combines precision, durability, and flexibility, ensuring reliable performance in even the most demanding industrial environments.
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Attribute
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Details
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Product Type
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Inductive Proximity Sensor
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Model
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NBB20-U1-Z2
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Detection Range
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- Rated: 20 mm (flush mounting)
- Assured: 0–16.2 mm
- Typical: 18–22 mm
- Metal Reduction Factors: Aluminum (0.3), Copper (0.3), 304 Stainless Steel (0.7)
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Output Type
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2-wire DC, bidirectional switching (NO/NC configurable)
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Voltage Range
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5–60 V DC (wide compatibility for diverse industrial systems)
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Current Ratings
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- Operating: 2–200 mA
- Off-state: ≤0.5 mA
- Voltage Drop: ≤5 V (at 100 mA load)
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Switching Frequency
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250 Hz (suitable for moderate-speed automation tasks)
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Hysteresis
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5% (typical, ensures stable switching without oscillations)
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Electrical Protection
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Reverse polarity tolerance; short-circuit protection (pulsing)
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Indicators
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2x Yellow LEDs for 360° visibility (switching state feedback)
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Mechanical Design
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- Housing: PA/metal with epoxy powder coating
- Sensing Face: PA
- Dimensions: 40 mm (W) × 40 mm (H) × 118 mm (L)
- Weight: 225 g
- Mounting: Flush-mountable with rotatable sensor head (bidirectional alignment)
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Connection
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Screw terminals (max. 2.5 mm² conductor; tightening torque: 1.2 Nm ±10%)
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Environmental Ratings
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- IP Rating: IP68/IP69K (waterproof, dustproof, and resistant to high-pressure cleaning)
- Temperature: -25°C to +85°C (ambient); -40°C to +85°C (storage)
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Certifications
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- Standards: EN IEC 60947-5-2
- Approvals: UL listed (general purpose); CCC certified (China)
- Compliance: RoHS compliant; EAC conformity (TR CU 020/2011)
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Functional Safety
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- MTTF d: 1162 years
- Mission Time (T m): 20 years
- Diagnostic Coverage (DC): 0%
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Installation Features
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Rotatable sensor head for flexible alignment in tight spaces; compatible with M20 cable glands
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Applications
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Machinery control, conveyor systems, automotive manufacturing, process automation, and harsh environments (wet/dusty zones, high-pressure washing areas, extreme temperatures)
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Additional Features
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- Low off-state current for energy efficiency
- Quick startup time (80 ms)
- Modular design with 3D CAD models and EPLAN data available for easy integration
- Vibration and 冲击 resistance (符合工业标准)
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