I have a 2/0 SER aluminum feed cable going to the sub panel in my garage. Is there anything in the electrical code about what size connector it has to go through entering the panels? It will fit through a 1 1/2", I just want to make sure that I don't need a larger size to meet code. Thanks.
Code question on knockout connector size for main feed cable
- Thread starter 1233user
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Speedy Petey
Well-known member
No. Whatever the correct fitting is will determine the KO size.
The knockout in the panel for the main feed is multiple sizes, so I can punch it out as big as needed to fit the correct size connector.
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Charles (in GA)
Well-known member
Halex 1½ NM/SE cable clamp
Indoors Only. Fits NM Cable: Flex cords, multi flex cords; fitting range .834-1.520 inches diameter SE cables 2 conductor 4/0. Type: Twin Screw. In a dry location, use to connect nonmetallic sheathed cable to a steel outlet box or other metal enclosure. Miscellaneous: 1-1/2" knockout.
Indoors Only. Fits NM Cable: Flex cords, multi flex cords; fitting range .834-1.520 inches diameter SE cables 2 conductor 4/0. Type: Twin Screw. In a dry location, use to connect nonmetallic sheathed cable to a steel outlet box or other metal enclosure. Miscellaneous: 1-1/2" knockout.
Thank you!