Magnetic proximity sensors
MM Namur

Your Benefits

  • NAMUR version ensures safe function in explosion-hazardous areas
  • Non-contact operation eliminates interference from dirt, dust and vibrations, increasing sensor life and reducing maintenance costs
  • Large sensing ranges ensure reliable switching, even with target position tolerances
  • Universal use since detection through other objects, such as plastic walls or non-magnetic stainless steel walls, is also possible


MM NAMUR magnetic proximity sensors provide large operating distances that can reliably detect magnetic objects. Magnetic proximity sensors are resistant to dust, heat and vibration, making them ideal for use in harsh environments – even highly explosive atmospheres. By using magnetic conductors, these sensors are able to reliably detect objects over greater distances. The NAMUR design for hazardous areas is available in MM12 and MM18 designs.

At a glance
  • Types: M12 to M18
  • Sensing range: up to 120 mm
  • Electrical configuration: NAMUR
  • Enclosure rating: IP 67
  • Temperature range: –25 °C to +70 °C
  • Nickel-plated brass housing; plastic sensing face
  • Reliable detection of permanent magnets through non-ferromagnetic materials such as stainless steel, aluminum, plastic or wood
  • NAMUR design for usage in explosion-hazardous areas

Technical overview

  • Technical data overview

    Technical data overview

    HousingCylindrical thread design
    Thread size

    M12 x 1

    M18 x 1

    Sensing range Sn60 mm ... 120 mm
    Magnetic field sensitivity, min.≤ 0.4 mT ... ≤ 1 mT
    Housing materialNickel-plated brass / Stainless steel V4A (1.4404, 316L)
    Enclosure ratingIP67
    ConnectionMale connector M12, 4-pin / Cable, 2-wire / Cable with connector M9, 5-pin, with knurled nuts
All technical data can be found accompanying the individual product