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Explosion-Proof T3 Temperature

T3 signifies the maximum surface temperature threshold of 200°C for electrical equipment operating in explosive atmospheres.

Temperature group of electrical equipmentMaximum allowable surface temperature of electrical equipment (℃)Gas/vapor ignition temperature (℃)Applicable device temperature levels
T1450>450T1~T6
T2300>300T2~T6
T3200>200T3~T6
T4135>135T4~T6
T5100>100T5~T6
T685>85T6

The ‘T’ rating represents the ignition temperature within environments hazardous due to explosive gases.

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