MHF for feeding subpanel
#1
08-13-20, 09:15 AM
Join Date: Aug 2020
Posts: 1
Received 0 Votes
on
0 Posts
MHF for feeding subpanel
I'm installing a new 100amp sub panel in a finished basement with a drop ceiling.
I have 2-2-2-4 MHF to feed the panel. the run is about 60'. Do I need to enclose the MHF in conduit, or can I just strap it up?
I have 2-2-2-4 MHF to feed the panel. the run is about 60'. Do I need to enclose the MHF in conduit, or can I just strap it up?
#2
08-13-20, 02:46 PM
Do not use MHF to feed a subpanel from a main panel that is in the same structure. MHF is a direct bury cable and must be in conduit when entering a structure. The proper wire to use is either XHHW-2 in conduit from panel to panel or use SER cable. SER is probably your best bet as it is a jacketed cable and follows the same installation requirement as NM-b. Also #2 aluminum is only to be overcurrent protected to a max of 90 amps. So the feeding breaker can be no larger than 90A. To have the full 100A you need to use 1-1-1-3 Al SER. With that said, since you already have the 2-2-2-4 MHF it needs to be in conduit from panel to panel and fed with 90A breaker
CasualJoe voted this post useful.
[i]I dont think I can put breakers on top right[/i]
[i]The power supply.[/i]
