Chicago Plenum box

[sharan]

When you use Chicago plenum box for LED driver in the plenum box, does the box have to have a divider to separate high (277V) vs. Low voltage (24V)?

 

[ptonsparky]

When you use Chicago plenum box for LED driver in the plenum box, does the box have to have a divider to separate high (277V) vs. Low voltage (24V)?

What is a Chicago plenum box?

 

[don_resqcapt19]

There are no openings in a Chicago plenum box and as I recall they use a gasketed cover.
https://www.garvinindustries.com/el...quare-junction-boxes/air-tight-chicago-plenum