1 Ex e II CT6 DIP A21 TA,T6 2 For zone 1, 2,21,22 3 IP66 4 Aluminum-alloy Ambient temperature in service: -40~55oCRated voltage:AC690VTerminals:4×4~6mm2 + 1PE2.52Four entries on four sides(cable diameter:Φ7~9mm/Φ8~12mm/11~17mm)For cable wiring or pipe wiring Aluminum alloy, explosion-proof junction/terminal box,