I need to bring a 1/0-1/0-1/0-2 AL SE cable from a 2x4 wall into the back of the main service panel (it is a new subpanel feeder).
The main service panel is surface-mounted on the outsde, on the siding. The wall is 2x4, wood T111 siding, drywall inside (garage) and can be exposed/accessed easly from inside.
It seems the 3.5" of space in the wall is rather tight for the 1/0 AL NM cable to bend.
is it possible (to code) for the cable thickness to fulfill minimum band radius (MBR)?
what fittings to use? (do they need to be liquid tight as the connection to the panel is kinda on the outside (well...panel-on-siding wall but there is no waterproofing there)?
any ideas and advices to solve this problem?
I was thinking about using a conduit right angle fitting to ease the bend (strip the outside sheathing from the SER to ease MBR, after it enters the fitting) but not sure if code/inspector/sanity allows it and how to secure the cable to the fitting?
The new cable is labeled: ALUMAFLEX AA8178 TYPE SE STYLE SER TYPE XHHW-2 CDRS 600V
BTW, There is already an existing, in-service sub panel feeder which enters from the rear via a regular NM clamp connector. The old cable is "thinner" so the bend was easier (though still 100A breaker). This must have been inspected as it was installed when new 200A service was installed so a non liquid-tight was ok?