TUV 17 ATEX 8118: Ex db IIC T6 Gb/Ex tb IIIC T80°C Db
IECEx TUR 17.0049: II 2 G Ex db IIC T6 Gb/ II 2 D Ex tb IIIC T80°C Db
For explosive gas atmospheres, the maximum surface temperature is 85°C;
For flammable dust atmospheres, the maximum surface temperature is 80°C;
IIC: for explosive gas atmospheres other than mines susceptible to firedamp;
For explosive gas mixture atmospheres: Zone 1, Zone 2, Zone 21, Zone 22.