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Explosion proof CAM operated with key for hazardous area Zone 1 & Zone 21 & mines

Ex db / Ex tb – IP66

Units series Y/H are used to operate rotary CAM switches with Yale and triangular key respectively. The extraction of the key can be blocked in different position. They are designed to prevent tampering of the devices, allowing the operation only by authorized key holder personnel.

Bush is made of galvanized brass.

They are suitable to be installed in harzardous area Zone 1 & Zone 21 and also certified for mines group I M2 (with metal knob).


  • 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

  • Material used: Galvanized brass (bush)

  • ISO 262 Threads: M20x1.5 or M25x1.5

  • Max rated voltage: 500 Vac/dc

  • Max rated current: 63 A

  • Weight: 180 g up to 320 g

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