Tingkat Tahan Ledakan Mana yang Lebih Tinggi, BT4 atau CT6

The BT4 model is classified under Explosion-proof Class B with a temperature rating of T4, stipulating that the equipment’s surface temperature cannot exceed 135°C.

Kelas dan Tingkat	Suhu dan Kelompok Pengapian
-	T1	T2	T3	T4	T5	T6
-	T＞450	450≥T＞300	300≥T＞200	200≥T＞135	135≥T＞100	100≥T＞85
I	Metana
IIA	Etana, Propana, Aseton, Fenetil, Ene, Aminobenzena, Toluena, Benzena, Amonia, Karbon Monoksida, Etil Asetat, Asam Asetat	Butana, Etanol, Propilena, Butanol, Asam Asetat, Butil Ester, Amil Asetat Asetat Anhidrida	Pentana, Heksana, Heptana, Dekana, Oktana, Oktana, Bensin, Hidrogen Sulfida, Sikloheksana, Bensin, Minyak Tanah, Diesel, Minyak Bumi	Eter, Asetaldehida, Trimetilamina		Etil Nitrit
IIB	Propilena, Asetilena, Siklopropana, Gas Oven Kokas	Epoksi Z-Alkana, Epoksi Propana, Butadiena, Etilena	Dimetil Eter, Isoprena, Hidrogen Sulfida	Dietileter, Dibutil Eter
IIC	Gas Air, Hidrogen	Asetilena			Karbon Disulfida	Etil Nitrat

Conversely, the CT6 model holds a Class C explosion-proof rating, covering the requirements of BT4 and applicable to zones with dangerous gases like hydrogen and acetylene. T6 equipment must maintain a surface temperature no higher than 85°C.

Dalam hal suhu categories, T6 represents the highest safety level, suggesting that a lower equipment surface temperature is preferable.

As a result, CT6 possesses a superior explosion-proof classification.