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Pepperl+Fuchs NBB15-U1-A2 Inductive sensor
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Pepperl+Fuchs NBB15-U1-A2 Inductive sensor

Manufacturer: Pepperl+Fuchs
Model: NBB15-U1-A2
Sensing Range: 15 mm flush
Output: 4-wire DC, PNP NO+NC complementary
Supply Voltage: 10–30 VDC
Housing: Rectangular VariKont block style, terminal compartment with cage-clamp terminals

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Product Description

The Pepperl+Fuchs NBB15-U1-A2 is the legendary universal-mount 15 mm inductive sensor from the VariKont series — the most popular rectangular block-style proximity switch worldwide. With its unique active sensing face that can be positioned on any of the four sides simply by rotating the terminal head, it offers unmatched mounting flexibility. The large terminal compartment with cage-clamp terminals and complementary PNP NO+NC outputs make it the first-choice sensor for conveyor systems, packaging machines, assembly lines and general automation where quick installation and maximum versatility are required.

Standard Features

  • 15 mm flush sensing range: Detects all metals reliably even through non-metallic covers.

  • 4-side active face (VariKont): Rotate terminal head 90° increments — sensor can “look” left, right, up or down without extra brackets.

  • Complementary PNP outputs: Simultaneous NO + NC in one sensor — eliminates need for two separate switches.

  • Large terminal compartment: Cage-clamp terminals accept 0.34–1.5 mm² wires — fast, tool-free wiring.

  • High switching frequency: 0–1000 Hz — perfect for fast-moving targets.

  • Dual LED indicators: Yellow (output) + green (power) visible from all directions.

Technical Specifications

ParameterValue
TypeInductive proximity sensor, rectangular VariKont
Order NumberNBB15-U1-A2
Sensing Range (Sn)15 mm (flush)
Output Type4-wire DC PNP, NO + NC complementary
Operating Voltage10 … 30 VDC
Switching Frequency0 … 1000 Hz
No-load Supply Current≤ 15 mA
Load Current≤ 200 mA per output
Voltage Drop≤ 2.5 V
Housing MaterialPA 6 (polyamide), black
Active FaceRotatable in 90° steps (4-side sensing)
ConnectionTerminal compartment with cage-clamp terminals (0.34–1.5 mm²)
Degree of ProtectionIP67
Operating Temperature–25 °C … +85 °C
LED IndicatorsGreen (power), Yellow (output)
ApprovalsUL, CSA, CE

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