Product Description

​The Pepperl+Fuchs NBB20-U1-E0 is an inductive proximity sensor designed for non-contact detection of metallic objects. It features a bidirectional and rotatable sensor head with a rated operating distance of 20 mm, suitable for flush mounting. The sensor operates on a 3-wire DC configuration with NPN output, providing a normally open (NO) switching function. It is equipped with four LEDs that offer 360° visibility for clear status indication.

Technical Specifications

• Sensor Type: Inductive​
• RS Components
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• Pepperl+Fuchs
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• Sensing Distance: Rated operating distance (sn): 20 mm​
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• Pepperl+Fuchs
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• DigChip
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• Mounting: Flush​
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• Output Type: NPN, 3-wire DC​
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• Operating Voltage: 10 V DC to 30 V DC​
• Switching Frequency: Up to 440 Hz​
• Pepperl+Fuchs
• Hysteresis: Approximately 5%​
• Reverse Polarity Protection: Yes​
• Short-Circuit Protection: Pulsing​
• Voltage Drop: ≤ 2 V​
• Pepperl+Fuchs
• Operating Current: 0 mA to 200 mA​
• Off-State Current: Up to 0.5 mA (typically 0.1 µA at 25 °C)​
• No-Load Supply Current: ≤ 20 mA​
• Time Delay Before Availability: 80 ms​
• Operating Voltage Indicator: Green LED​
• Switching State Indicator: Yellow LED​
• Ambient Temperature Range: -25 °C to +85 °C​
• Connection Type: Screw terminals​
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• Control Components
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• Housing Material: PA/metal with epoxy powder coating​
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• Degree of Protection: IP68 / IP69K​
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• Dimensions: 40 mm (height) x 40 mm (width) x 118 mm (length)​
• Weight: Approximately 225 g