SAE
New member
- Location
- Houston, Texas
I have a Nema 4x enclosure installed in a C1Div2 area. The inside of this enclosure is rated C1Div1. (due to the potential of hydrocarbon leaks from valves located inside which could frequently result in an explosive atmosphere - 500.5B(2)). What are my options for this conduit transition through this boundary to terminate Div1 rated devices located inside this enclosure? 501.15 A (4) limits my options to a grommet type penetration into the enclosure.