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













