Regarding the explosion protection rating of motors
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The explosion protection rating of motors is generally determined by the medium. For example, in the current workshops, it is determined based on the medium, with the highest rating being EXDIIAT2. So, should one generally choose IIAT2, or IIAT4, or IIBT4? Is there a difference in price for IIAT2, IIAT4, and IIBT4? By how much?
Choose IIA, IIB, or IIC based on the properties of the gas, and select T1, T2, T3, T4, T5, or T6 according to the ignition point of the relevant gas. . . . . . As for the price, there is definitely a difference, with the IICT6 being more expensive. . . . . .
It is safer to choose IIAT4. . .
Of course, there are price differences; the higher the grade, the higher the price
It is said that IIAT4 is also not easy to obtain; for explosion protection, IIBT4 is generally the choice of choice. Are the prices about the same? Is that so?
IIBT4 meets the usage requirements and is also versatile. . .
Emma, Old Zhang! ;P:lol
Mr. Deng upstairs, are you surprised? Excited? Happy? :lol
Those below BT4 should have been phased out already. The AT4 you mentioned is likely the one with the lowest explosion-proof rating; at present we can achieve CT6, and its price is much higher than that of BT4
IIBT4 is universal and higher than other specifications.