Electrical equipment boxes suitable for hazardous area Zone 1 & Zone 21 & mines
Ex db / Ex tb – IP 66

Electrical equipment boxes series ROI are normally used to contain electrical equipment and instrumentation that need to be visible such as ammeter, voltmeter, photocell, etc in classified area Zone 1 and Zone 21. The wide range offered serve to meet the specific requirements indicated by the customer.

The are made in Stainless Steel AISI 316L with minimim thickness of 4mm so they have high resistance against mechanical damage and also high resistance against corrosion. The max ambient temperature range certify is -50°C ÷ +85°C.


  • Type of protection: Ex db / Ex tb

  • Degree of protection: IP66

  • Certified for:

    • Gas group IIC
    • Dust group IIIC
    • Mines group I M2
  • Max ambient temperature: -50°C ÷ +85°C

  • Material used: stainless steel AISI 316L

  • NPT Threads: from 1/2″ NPT up to 2″ NPT

  • ISO 262 Threads: from M20x1.5 up to M63x1.5

  • Max rated voltage: 690Vac / 440Vdc

  • Max rated current: 109A

  • Max rated cross-section: 35mm2
Electrical equipment boxes series ROI - Ex db / Ex tb - IP 66 - Stainless Steel AISI 316L
Certificazione CE - RIBCO S.r.l.

Assembly instructions(Coming Soon)

Safety instructions 

IECEx Conformity

ATEX Certificate 

IECEx Certificate 

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