Scope CBDD proof electric flute for 1 and Zone 2 hazardous gas areas; Ⅱ A, Ⅱ B, Ⅱ Class C T1 ~ T4 group flammable gas or vapor; Indoor and outdoor IP54, IP65 Features: Aluminum alloy casing, surface spray; pipe or cable wiring. The main technical parameters: Model CBDD-□ □ voltage DC 24/36V AC 24/36/220V; proof mark ExdIIBT4 ExdIICT4 * (IIC level required to propose when ordering); protection class IP65 Protection category W, WF1 Inlet thread ( G) G1 / 2 cable diameter Φ8-Φ10 (mm) continued energization time ≤ 5min. explosion-proof electric flute primarily in ships, drilling platforms and other working conditions. quality replacement a year, three-year warranty.