Pepperl + Fuchs Block Inductive Sensor – 20mm Flush, PNP, 4-Wire DC

$195.70 ex GST

The Pepperl + Fuchs NBB20-U1-A2-M is a rugged block-style inductive proximity sensor with a 20 mm flush sensing distance, PNP 4-wire DC output, robust screw-terminal connection and extended temperature operation. Built for heavy industrial automation and machinery, it delivers reliable detection of metallic targets in demanding environments.

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Part Number: NBB20-U1-A2-M
Pepperl + Fuchs Block Inductive Sensor – 20mm Flush, PNP, 4-Wire DC

Benefits

The Pepperl + Fuchs NBB20-U1-A2-M Inductive Sensor is engineered for precise non-contact detection of metal objects with a 20 mm rated sensing distance and flush installation for seamless integration into equipment and production lines. Featuring a PNP 4-wire DC output, it provides stable switching signals compatible with PLCs and industrial control systems. The bidirectional and rotatable head allows flexible positioning for optimal detection geometry, while robust screw-terminal connections support secure installation in rugged environments.

Designed to withstand harsh industrial conditions, this sensor has an extended temperature range of –40 °C to +85 °C and a durable block housing made of polyamide/metal with epoxy powder coating. It includes reverse-polarity protection, pulsing short-circuit protection, green and yellow LEDs for supply and switching status, and E1 type approval for automotive applications. With high ingress protection (IP68/IP69K) and a 360° LED indicator, the NBB20-U1-A2-M delivers robust, highly visible performance for automated manufacturing, machine positioning, material handling and quality control applications.

Features:

  • 20 mm flush sensing distance for robust metal detection
  • PNP 4-wire DC output for reliable switching integration
  • Bidirectional, rotatable head for flexible installation
  • Extended temperature range: –40 °C to +85 °C
  • Reverse-polarity & short-circuit protection for rugged reliability
  • Green & yellow LED indicators for supply and switching state
  • E1 type automotive approval and robust compliance
  • High ingress protection: IP68 / IP69K

Pepperl + Fuchs Block Inductive Sensor 20mm Flush, PNP, 4-Wire DC – Technical Data Sheet

Weight 0.225 kg
Dimensions 11.8 × 4 × 4 cm
Switching function complementary
Output type PNP
Rated operating distance sn 20 mm
Installation flush
Output polarity DC
Assured operating distance sa 0 ... 16.2 mm
Actual operating distance sr 18 ... 22 mm typ. 20 mm
Reduction factor rAl 0.34
Reduction factor rCu 0.32
Reduction factor r304 0.77
Reduction factor rSt37 1
Reduction factor rBrass 0.43
Output type 4-wire

Pepperl+Fuchs is a globally recognised technology leader specialising in industrial sensors, process instrumentation, and hazardous area (explosion protection) solutions. Founded in Germany, the company has built a strong international reputation for delivering high-quality, reliable, and safety-critical technologies used across industries such as oil & gas, mining, chemical processing, pharmaceuticals, manufacturing, and automation.

At its core, Pepperl+Fuchs focuses on enabling safe, efficient, and intelligent industrial operations—particularly in environments where precision and protection are essential.

Pepperl+Fuchs products are engineered for extreme industrial conditions, including:

  • High temperatures and pressure
  • Corrosive chemicals
  • Dust and moisture exposure
  • Mechanical impact and vibration

This focus on durability ensures long service life, reduced maintenance requirements, and consistent performance in the field.

Pepperl+Fuchs solutions are widely used in industries where precision and safety are critical, including:

  • Oil & Gas – hazardous area instrumentation and explosion protection
  • Mining & Resources – rugged sensors and Ex-certified equipment
  • Chemical & Petrochemical – safe process monitoring and control
  • Pharmaceuticals – hygienic and reliable instrumentation
  • Manufacturing & Automation – sensors and interface technology
  • Energy & Utilities – monitoring and protection systems
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Pepperl + Fuchs Block Inductive Sensor – 20mm Flush, PNP, 4-Wire DC
Pepperl + Fuchs Block Inductive Sensor – 20mm Flush, PNP, 4-Wire DC

$195.70 ex GST

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