Ex-mark: Ex eâ ¡T6 DIP A21 TA, T6 Intended use: Can be used in zone 1 and zone 2 Can be used in zone 21 and zone 22 Degree of protection: IP66 Ambient temperature use: -40âÂÂ≤Ta≤55â (40âÂÂ) Rated Voltage: AC 690V Terminal: 8× 4~6 mm2 + 1 PE Cross section of terminal: 4mm2/25A 6mm2/32A Material: Alloy plastic of static resistence