BALLUFF M18 Proximity Switch, NPN, 5mm Sensing, 3m Cable

The BALLUFF M18 Proximity Switch is a robust inductive sensor designed for reliable non-contact detection in industrial automation and control systems. Engineered with high-performance materials, it provides accurate sensing of metallic objects, ensuring consistent operation in demanding environments.

This sensor features a flush-mountable design with a shielded mechanical installation condition, allowing it to be installed level with surrounding metal surfaces without loss of sensing range. It offers an assured operating distance of 4mm and a rated operating distance of 5mm, providing a reliable buffer for precise positioning applications. With a high switching frequency of 700Hz, it is capable of detecting fast-moving objects, making it suitable for high-speed counting and sequencing tasks.

Key Features & Operation

• Equipped with a clear function indicator for immediate visual status confirmation.
• Built-in protection against polarity reversal and short circuits enhances durability and prevents damage from incorrect wiring.
• Utilises a Normally Open (NO) switching function with an NPN switching output, a common configuration for interfacing with programmable logic controllers (PLCs) in sink wiring schemes.
• Connection is made via a fixed 3.00m PVC cable, offering flexibility in installation and eliminating the need for separate connectors.

Robust Construction & Specifications

Housed in a cylindrical M18 threaded brass body, the sensor is built for mechanical strength and resistance to vibration. It operates effectively within a wide temperature range from -25°C to +70°C, ensuring performance in both cold storage and warm industrial settings. The sensor is powered by a 12-30V DC supply, compatible with standard industrial control voltages.

Ideal for a multitude of sensing and instrumentation roles, this proximity switch delivers dependable, long‑