Technical Specifications : Ex-proof Zone Class: hazardous areas – Zone 1 / 21 (Gases) – Zone 2 / 22 (Dusts) Ex-proof Protection (Gases): II 2G Ex de ia/ib m [ia/ib] IIC T5, T4 Ex-proof Protection (Dusts): II 2D Ex td A21 IP 66/65 T 80°C, T 95°C Protection Degree: IP65 / IP66 Ambient Temperature: -20 °C ÷ +40 °C (-55°C ÷ +55°C) Body Material: Glass-Fiber Reinforced Polyester, Steel Sheet, Stainless Steel ATEX Certificate: DEKRA I3ATEXO2O9 OTHER AVAILABLE CERTIFICATES : IECEx, CU TR