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Explosion proof mushroom push buttons for hazardous area Zone 1 & Zone 21 & mines

Ex db / Ex tb – IP66

These pushbuttons are mushroom type with several release mechanisms (F normal / FP push-pull / FR rotary release / FY key release).
They can be installed up to 4 electrical contacts or normally close or normally open or both type.
They are suitable to be installed in harzardous area Zone 1 & Zone 21 and they are also certify for mines group I M2 (with metal ring protection).


  • Type of protection: Ex db / Ex tb

  • Degree of protection: IP66

  • Certified for:

    • Gas group IIB+H2 or IIC
    • Dust group IIIC
    • Mines group I M2
  • Max range ambient temperature: -50°C ÷ +80°C

  • Materials used:

    • Nickel plated brass (body and ring nuts)
    • Stainless Steel AISI 316L (drive shafts)
    • Polyamide 6 (mushroom push button)
  • ISO 262 Threads: M20x1.5 or M25x1.5

  • Max rated voltage: 500 Vac/dc

  • Max rated current: 10 A

  • Weight: 66 g up to 205 g

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