For certified EExd electrical motors is temperature class also an important factor? Or is it that Gas group ( IIA, IIB or IIC) is the deciding parameter and temperature class T3 or T4 does not matter? Can I use a motor certified for EExd IIA/IIB T3 against a specification requirement of EExd IIA/IIB T4?
EExd versus Temperature class
For certified EExd electrical motors is temperature class also an important factor? Or is it that Gas group ( IIA, IIB or IIC) is the deciding parameter and temperature class T3 or T4 does not matter? Can I use a motor certified for EExd IIA/IIB T3 against a specification requirement of EExd IIA/IIB T4?
I'm in a fix !!
fixednfinal ■