Plame-proof and increased safety controller 1.Ex II 2GD Ex ed IIC T6 Ex tD A21 TA 80 2.Intended use:zone 1 ... ,2 and 21,22 3.IP66 Plame-proof and increased safety controller,1.Ex ... II 2GD Ex ed IIC T6 Ex tD A21 TA 802.Intended ... *M20,cable outer diameter Φ 5.5-13mm Plame-proof and increased safety controller