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For questions about an [electrical-panel] that is fed from another [electrical-panel] instead of being fed directly by a utility service or separately derived service (such as a generator or inverter).
1
vote
Best way to feed my planned 240V subpanel down 150' of stairs?
Run the 240v and subpanel it.
I often see people make the mistake of a 120v run because initially it's cheaper (less wires) and easier (no need for a subpanel). …
1
vote
What size wire and breaker should I use for a small one bedroom cottage?
If I were you, I'd go as follows (assuming US split 240v)
Run 8 gauge THHN from your main panel to your subpanel (in buried conduit) and use a 50A breaker in the main. … and you won't be in the dark if you blow a breaker in the subpanel
Run a 15A breaker to a single dedicated outlet for your AC. It's overkill, but I'm assuming you have a 5k-6k BTU window unit. …
2
votes
Is this double tap for a subpanel a problem?
My bet is your panel is full and someone wanted to add the shed subpanel anyways so they simply fed it into the utility connection to the panel. … Corroded aluminum is a fire hazard
There's no way to cut the subpanel off. …
0
votes
Why does my subpanel have 4 wires feeding into the lugs?
I can't exactly tell from the picture, but it could be that they ran 4x 8 gauge THHN aluminum instead of 2x 6 gauge aluminum. It's also possible you have 6 gauge coming in and 8 gauge going out to som …
25
votes
What type of cable should I bury for a small utility shed?
Now you have 40 amps and 240v, so you should really get a subpanel. This is where 10/3 starts to make more sense. …
2
votes
Can I feed a sub panel off my 200A service box? Or would I need to run wire from the inside ...
I don't think that's a 125 amp wire. My bet is that's an 8 gauge wire feeding that whole panel, so 50 amps per leg. I wouldn't bank on it being more than that.
Whether or not you can add more is anot …
0
votes
What size subpanel and wire do I need for a swimming pool?
It would easily handle the voltage drop, it's direct burial (4/0 is at any rate) and it's far cheaper than copper alternatives at present (I just did a subpanel in 4-4-4-6 and it was 1/3 the cost of 6/ …