IECEx Zone 1, 2, 21 & 22 Ex ed IIC T6 or T5, Ex tD A21 IP66 T68 deg C IP66 IK09/10 -40 to +55 deg C Integral linear switching - high quality, safety 3 padlocking position - safety first, convenience, clean Positive polarization 20kA short circuit rating IECEx Zone 1, 2, 21 & 22 Ex ed IIC T6 or T5, Ex tD A21 IP66 T68 deg C IP66 IK09/10 -40 to +55 deg C Integral linear switching - high quality, safety 3 padlocking position - safety first, convenience, clean Positive polarization 20kA short circuit rating