Euchner NM11RBA-MC2069 Safety sw. with roller plunger1NC+1NO


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The plastic-encapsulated safety switches of design NM are used for monitoring the position of safety doors and moving machine components. Every user can thus employ the optimum actuating element for his/her application. The easy adjustability of the actuator heads in 4 approach directions permits maximum flexibility. Two basic housings are available with up to 3 switching contacts. The compact design, as well as the option of any installation orientation, means that these switches can be integrated in all automation and assembly fields. The safety switch NM.RBA comes with a roller arm and a short housing


  • Protective insulation with glass fibre-reinforced plastic, degree of protection IP67
  • Long mechanical life
  • 5 different actuating heads for the same basic housing
  • Minimum dimensions combined with maximum functionality
  • Simple, rapid conversion in 4 approach directions
  • 3 cable entries laterally and from below (type NM11..., NM02...,NM12..., NM03...) in the long housing
  • Large connection space of the individual contact elements
  • Up to 3 switching contacts


Design: Safety switch NM.RB with roller plunger, short housing

Material: Housing Reinforced thermoplastic

Contact material: Silver alloy, gold flashed

Number of door position positively driven contacts: 1

Number of door position NO contacts: 1

Switching principle: Slow-action switching contact

Installation orientation: Any

Approach speed: max.60 m/min

Actuation frequency: max.5000 1/h

Retention force: -

Extraction force: -

Actuating force: 15 N

Insertion depth: -

Mechanical data

Mechanical life: 30 x 106

Connection: 1 x M16 x 1.5

Electrical data

Thermal rated current: 4 A

Switching voltage: Min. at 10mA12 V

Switching current: Min. at 24V 1 mA

Rated insulation voltage: 250 V

Rated impulse withstand voltage: 2,5 kV

Connection cross-section: 0,34 ... 1,5 mm²

Ambient conditions

Ambient temperature: -20 °C to 80 °C

Degree of protection: IP67

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