Clearance for nominal trade size connectors are the same as that for rigid conduit.
For standard oil tight push button use 1-7/32 Knock out punch |
|
CLEARANCE
|
TRADE SIZE |
RIGID CONDUIT |
E.M.T. CONDUIT |
GREENFIELD |
L.T. FLEX |
1/2" |
7/8" |
3/4" |
1" |
1-1/8" |
3/4" |
1-1/8" |
1" |
1-1/8 |
1-1/4" |
1" |
1-3/8" |
1-1/4" |
1-1/2" |
1-1/2" |
1-1/4" |
1-3/4" |
1-5/8" |
1-3/4" |
1-7/8" |
1-1/2" |
2" |
1-7/8" |
2" |
2-1/8" |
2" |
2-1/2" |
2-1/8" |
2-1/2" |
2-3/4" |
2-1/2" |
3" |
2-7/8" |
2-7/8" |
- |
3" |
3-5/8" |
3-1/2" |
3-5/8" |
- |
3-1/2" |
4-1/8" |
4" |
4-1/8" |
- |
4" |
4-5/8 |
4-1/2" |
4-5/8" |
- |
5" |
5-3/4" |
- |
- |
- |
6" |
6-3/4 |
- |
- |
- |
|
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