Replies
Re: Eexd Versus Temperature Class
Posted on
21. Mar. 2006 - 04:35
T3 means max surface temperature of 200°C
T4 means a maximum surface temperature of 135°C
I would say a T3 motor is not suitable for a T4 specification. ■
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 ■