Pepperl+Fuchs NBB20-U1-Z2 Inductive Proximity Sensor 20mm Detection 10-30V DC M30 IP67 Machinery Safety

Flexible Inductive Sensing with 360° Visibility

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.

Robust Construction for Harsh Industrial Environments

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.

Versatile Performance for Seamless System Integration

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.