| Junction Box Conduit Opening Code Logic |
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| ENCLOSURE | CONDUIT OPENING | HUB SIZE CODE | CONDUIT HUB SIZE (INCHES) |
SHEEL SIZE |
A = TOP |
F | 1 - 11 1/2 NPT |
| G | 1 1/4 - 11 1/2 NPT | ||
| H | 1 1/2 - 11 1/2 NPT | ||
| SHELL SIZE 24 & 28 |
B = BOTTOM FEED, TOP FEED NOT AVAILABLE |
K | 2 1/2 - 8 NPT |
| L | 3 - 8 NPT | ||
| EXAMPLE: SUFFIX "-AH" DENOTES TOP FEED WITH A 1 1/2" HUB. |
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