Keep in mind that T2 is considered inferior, while T6 represents the optimal temperature classification! Hence, devices with a T6 explosion-proof rating are more than adequate for environments requiring T2 standards.
Temperature group of electrical equipment | Maximum allowable surface temperature of electrical equipment (℃) | Gas/vapor ignition temperature (℃) | Applicable device temperature levels |
---|---|---|---|
T1 | 450 | >450 | T1~T6 |
T2 | 300 | >300 | T2~T6 |
T3 | 200 | >200 | T3~T6 |
T4 | 135 | >135 | T4~T6 |
T5 | 100 | >100 | T5~T6 |
T6 | 85 | >85 | T6 |
T6 devices are designed to operate at temperatures not exceeding 85°C, compared to T2 devices, which can withstand up to 300°C.