Robust Design for Industrial Flexibility

The Pepperl+Fuchs NBN40-U4-E2 is a high-performance inductive proximity sensor engineered for reliable non-contact detection of metallic objects in demanding industrial environments. Housed in a rugged M30 threaded barrel with a 50 mm sensing face, its cylindrical design allows flush or non-flush mounting, adapting seamlessly to dense machinery layouts. The rotatable sensing head (360° adjustment) optimizes detection angles in confined spaces, while the 3-wire DC PNP output (NO/NC complementary) ensures compatibility with standard control systems. A visible yellow LED indicates switching status, enhancing real-time monitoring. Weighing 200 g with included mounting nuts, it offers quick installation, ideal for applications requiring precision and durability, such as conveyor systems or robotic arm positioning.

Precision Sensing with Reliable Performance

Designed for consistent operation, this sensor provides a 40 mm rated sensing distance (flush mounting) with 5% hysteresis to minimize signal fluctuations from vibration or material variance. It operates across a 10–30 V DC voltage range, supporting a 200 mA load current with pulsing short-circuit and reverse polarity protection. The inductive technology detects ferrous and non-ferrous metals, guided by reduction factors (e.g., aluminum: 0.3, stainless steel: 0.7) for target material selection. A switching frequency of 200 Hz suits high-speed automation, while the IP67 rating protects against dust and water immersion, ensuring performance in wet or dusty environments. The polyamide (PA) sensing face and nickel-plated brass housing resist corrosion and mechanical stress, enhancing longevity.

Durability and Compliance for Harsh Environments

The NBN40-U4-E2 meets international standards (EN/IEC 60947-5-2) and carries CE, UL, and CCC certifications, ensuring global usability in industrial automation. Its wide operating temperature range (-25°C to 70°C) makes it suitable for extreme conditions, from cold storage to high-temperature processing lines. The sensor’s flush-mount design reduces interference from adjacent metal surfaces, critical for dense machine setups in manufacturing, logistics, or process control. With an MTTFd exceeding 1500 years and a 20-year mission time, it delivers long-term reliability in critical applications, such as detecting pallets on conveyors or monitoring heavy machinery movements. Trusted for its robust construction and precise sensing, it embodies Pepperl+Fuchs’ expertise in industrial sensing solutions.