First post here.
Can you please help me clarify the definition of "hermetically sealed" for class 1 div 2 (grp C&D)? If I have a level switch with a non-sealed relay switch in a Nema 4x enclosure, can I consider that the o-ring on the lid and chord grip seal the enclosure against vapors?
If not, my next question is if I get the switch with the EP enclosure, do I need an actual seal off for the cable or can I seal it some other way (quick connect fitting, chord grip, etc)?
They don't offer this particular switch with a nonincendive rating, and I'm trying to avoid conduit.
Thanks - Ty
Can you please help me clarify the definition of "hermetically sealed" for class 1 div 2 (grp C&D)? If I have a level switch with a non-sealed relay switch in a Nema 4x enclosure, can I consider that the o-ring on the lid and chord grip seal the enclosure against vapors?
If not, my next question is if I get the switch with the EP enclosure, do I need an actual seal off for the cable or can I seal it some other way (quick connect fitting, chord grip, etc)?
They don't offer this particular switch with a nonincendive rating, and I'm trying to avoid conduit.
Thanks - Ty