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 ... can be used in zone 1and 2,zone 21 and 223.Ambient temperature use:-40---554.Degree of ... outer diameter Φ 5.5-13mm Plame-proof and increased safety controller