For use in Class II Division 1 and 2 locations as defined in Article 500 of the National Electrical Code as having the presence of combustible dusts.
- 0.19-in. (5-mm), .25-in. (6-mm) and .38-in. (10-mm) steel plate Ends are .38-in. (10-mm) steel plate to provide a minimum of 3.50 full threads for conduit sizes through 2.00 in. (51 mm). (Class II enclosures must have minimum of 3.50 full threads at al l conduit entrances. NEMA requires conduit entrances to be in top and/or bottom of enclosure. Tapped holes for conduit should have tapered pipe threads.) Covers are .25-in. (6-mm) thick to allow mounting of NEMA 9 pushbuttons and pilot lights, which re quire threaded holes (3/4-14 NPSM thread) Heavy duty cover hinges on enclosures when "A" is 20.00 in. (508 mm) or more Fiber gasket, mechanically attached to cover, assures dust-tight enclosure Weldnuts or collar studs provided for mounting optional pa nel
- ANSI 61 gray polyester powder finish inside and out over pretreated surfaces.
- For use in Class II Division 1 and 2 locations as defined in Article 500 of the National Electrical Code as having the presence of combustible dusts.