phebejtsov
Member
Theorectically an intrinsically safe circuit will need all its associated apparatus to “limit the energy” in-order to maintain it’s certification. The reason I asked this is because Allen Bradley’s operators are Ex ‘d’ (explosion proof) and is part of an I.S. loop. I want the operators to be housed in a Ex ‘e’ junction box rather than a Ex ‘d.’ If housed in a Ex ‘d’ box, I won’t have to worry about the I.S. loop losing its integrity, however Ex ‘d’ boxes are not cost effective.
I believe this can be achieve with the Ex ‘e’ boxes, even though I will lose my integrity. Since the AB’s operator contacts are sealed, no process gas can leak into it.
I believe this can be achieve with the Ex ‘e’ boxes, even though I will lose my integrity. Since the AB’s operator contacts are sealed, no process gas can leak into it.