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1 vote
1 answer
884 views

Would a 50A breaker for a sub panel be enough for a tiny house?

Would a 50 amp breaker for a sub panel be enough to power up a tiny house with these features? 7 can lights 120v water heater 5 outlets bathroom GFCI exhaust fan Mini-split heat exchanger
Mynor Hernandez's user avatar
0 votes
1 answer
138 views

Do I need to use 60 degree C ampacity rating for feeders to 60 amp subpanel?

I calculated my wire size for feeders to a 60 amp subpanel, for a pump house, based on 75C column of ampacity chart. Terminals out of main and into subpanel are both rated 75C. But then I saw ...
cjc's user avatar
  • 101
0 votes
0 answers
54 views

How to split a 30 amp 120v circuit to allow a sub panel containing two 20 amp 120vbreakers

I have an existing 30A 120v circuit breaker in my main panel which has been used to power a computer server rack and backup battery. A 30 foot long 10 gage 3 wire (black, white and green) extension ...
Kent's user avatar
  • 1
0 votes
2 answers
173 views

200amp (Main) Meter Panel to 200amp (sub) Panel (Siemens)

Long story short: Bought an old house and LADWP asked me to put in a new meter panel at the back of the house and convert the existing old (front) and very small panel to a sub. Both panels will be ...
Thomas Cheng's user avatar
1 vote
2 answers
1k views

Can I split 30 amp breaker with 10 g wire into a sub panel with 2 15 amp breakers and 12 g wire?

I want to run new electric to a new garage. I was hoping to have 2 lines, one for lights and 1 for outlets. What would be the best way to run this from my main panel in the house about 80ft away?
Bob's user avatar
  • 11
0 votes
3 answers
425 views

Connect generator to main panel

I want to connect a generator with a 50 amp power inlet box but as you can see from the picture, there's no space to install the circuit. Am i missing something? This main panel connects to a subpanel ...
Sam's user avatar
  • 1
3 votes
2 answers
312 views

Main breaker to sub panel trips

I ran 2AWG aluminum 140’ to my backyard barn through PVC conduit. I bought a cheap subpanel with seemingly positive reviews. When I switch my 60A breaker on at my main, it immediately trips. I ...
Frank's user avatar
  • 43
1 vote
3 answers
537 views

Help in understanding capacity of split bus breaker panel with sub panel

My home was built in 1978 (USA, Washington State), and has a split bus panel for the main breaker box. It also has a separate subpanel, which I'm not sure if it is original or added later. I am a ...
Matt Johnson-Pint's user avatar
0 votes
3 answers
786 views

Adding a 50 amp sub panel 215 feet away from main panel

I have a Square D 100 amp main panel with plenty of capacity left and I am wanting to add a 50 amp outdoor sub panel that is 215 feet from the main panel. The sub panel would have only two 120 volt 25 ...
Kevin Johnson's user avatar
0 votes
0 answers
56 views

Is a 60A subpanel adequate for my needs?

I have a 200 amp service for main panel in the house. I want to add a subpanel in the barn 125 feet away, buried. I currently have a 10/2 cable going to a 20 amp panel and I keep blowing the breaker ...
jim bo's user avatar
  • 1
1 vote
0 answers
44 views

Is old subpanel wiring configuration to code?

I opened an old subpanel and this is how it is wired. The fuses are all 30 amp, tube-style fuses. What is the purpose of connecting the two left-most lugs? Is that intended to increase amps? Is this ...
cjc's user avatar
  • 101
2 votes
1 answer
124 views

Installing a subpanel with a service entry cable feed-through a Powerwall subpanel

Based on this post on installing an EV charger, I decided to research installing a sub-panel next to an existing surface mounted indoor sub (Square D HOM2040L125PRB), which is used for Powerwall ...
user2558617's user avatar
0 votes
1 answer
87 views

How to install a sub panel? [closed]

How to install subpanel? Wired 888 stranded no ground to a 125a 8 space 16 circuit sub panel ( not purchased yet) in a metal greenhouse (hoophouse). 40amp breaker from main. Total run 120'. The wiring ...
Joethrill's user avatar
3 votes
0 answers
125 views

Trying to right-size a critical loads subpanel

I'm installing solar and would like to set up a critical loads subpanel that is fed by both the solar and my main panel. The microinvters in the kit are Enphase IQ8+. I'd like to run a few circuits ...
RagingRoosevelt's user avatar
0 votes
2 answers
173 views

Ground bus for sub panel?

I am replacing an old fuse box in our (detached) garage with a modern breaker panel. What I've discovered is that the breaker boxes I can get from Home Depot have a neutral bus in them, but no ground ...
nsayer's user avatar
  • 123

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