Glossary

Temperature class

Equipment is divided into temperature classes according to their maximum surface temperature T6 max. permitted surface temperature <= 85°C T5 max. permitted surface temperature <= 100°C T4 max. permitted surface temperature <= 135°C T3 max. permitted surface temperature <= 200°C T2 max. permitted surface temperature <= 300°C T1 max. permitted surface temperature <= 450°C

Back