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for USA, Canada and countries running a 60 Hz power supply service.This is too involved to answer in a few short sentences. Get an electrician to do the work safely or a really good book on the subject.


One thing that most home owners don't understand, although the NEC is quite clear on this, is that if the sub-panel is in a detached building, it gets its own ground. You don't run a ground wire from the main panel to the sub-panel. Rather, you run only the neutral and two hots, and bond the neutral to the ground within the sub-panel, then ground it to an 8 foot long rod pounded into the ground, or other appropriate ground.

This is all quite different from the sub-panel being in the same building as the main panel. In that case, you run a separate ground wire, and don't bond the neutral and the ground at the sub-panel.


As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.

Before you do any work yourself,

on electrical circuits, equipment or appliances,

always use a test meter to ensure the circuit is, in fact, de-energized.




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โˆ™ 2015-07-15 19:08:46
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Q: How do you run a new breaker box in a detached garage from the existing breaker box in the house?
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Related Questions

Do you need to upgrade the 100A service in your house to run power to a detached garage?

All depends on what type of equipment you are going to operate in the garage. I would suggest you call an electrician. You can connect to your existing 100 amp circuit if there is an empty spot for a breaker.

Does change of use of a garage of a link detached house devalue the properties?

Short answer is Yes. If a garage conversion is carried out you no longer own a link detached house but a semi-detached, indeed if the next house did the same thing you would then live in a terriced house not a link detached

What is a link detached house?

A link detached house is a house that is only joined to another by a garage or just ground flor rom :(((((

Can you tap meter and feed panel in detached garage?

No. Any connections to the detached garage have to be after the main disconnect of your house panel. You have two options here. You can replace meter with a meter disconnect combo and have the main feed your house and add a breaker to feed the garage or You could install a 400 ap service and place two disconnects at the meter. one for the house and one for the garage. unless you are going to have a serious electrial load in the garage you sould just feed off the panel in the house for cost effectiveness.

What is the difference between a semi detached house and a detached house?

A semi detached house has one side of the house that will be attached to another house. A detached house has no shared walls. Most semi detached houses have the garage wall as the shared wall so there is less noise heard from either house.

What is a linked semi detached house?

Adjacent detached properties which do not have a party wall, but which are linked by the garage(s) and so forming a single frontage.

Do you need a main disconnect on the feeder wires running to a detached garage running from the box in the house?

You will need a breaker in your house panel to protect the wire feeders that supply the panel in the garage. The terminology for this setup is called a sub panel. At the garage end you will need a disconnect at that panel as the garage is not attached to the house. You might want to consider a 100 amp combination panel at the garage as it has a built in main disconnect and spaces for 12 or 24 breakers depending on the size of panel you select.

What is the difference between a single house and a double house?

A single house is otherwise known as a detached house. A double house is a semi-detached house. Semi detached houses have one shared built wall whereas a detached has space all around it..

Why would your power go out to your garage but not to your house and no fuses be blown?

Does the garage have a separate breaker box or fuse box inside? Is there a separate power feed for the garage? In the 70's and 80's some cities were allowing aluminum wiring INSIDE residences. If the wire from the main fuse/breaker panel is aluminum there is a real possibility that you might have a bad connection between the fuse box or breaker panel and the outlets in the garage.

Does an attached garage count in the square footage of your home?

No. It can be mentioned in the ad as "detached ?? sq ft garage" and you can include "?? sq ft of land" but not mislead the buyers into thinking the actual house has so much square footage when it is not.

How do you figure out percent of square footage of house?

Length x width of the interior edge of the foundation. Also, add the dimension of any attached enclosed garage in the figure. Non-enclosed or detached garage or car port do not apply.

What property goes with the sale of a house?

The home and other structures, such as a barn, shed, pool, detached garage, etc. that is located on the land to be sold, unless it is specified not to be sold.

What is a joined house?

This is called a semi detached house,

What is the definition of semi-detached house?

A semi-detached house shares one wall with the neighboring house. In America, it's called a duplex.

What is the opposite of a detached house?

Attached. In other words, does the house share any walls with another house, like with condos, apartments, duplexes, etc? If not, it is detached.

What is the cost of re-roofing a semi-detached house?

A semi detached house is one that shares an interior wall with the house directly beside it. The cost to reroof a semi detached house will be around 8,000 dollars, assuming no unexpected problems arise.

What do you call a house that stands apart on its own?

A detached house.

How would you connect the wires to a 60A panel installed in a detached garage from a 200A panel in the house?

Assuming garage is detached less than 80 ft away. You need a 60 AMP double pole breaker for the 200 AMP house panel, and need to have two spare slots. Additionally you should have conduit in running in ground, and have #4/3 W/ground Stranded cable running to the sub panel. This setup will allow for 110V's and a 220V circuit. Connect the two hots, Red/Black to the Breaker on your servicing the panel. Connect the neutral (White) to the Neutral bus bar along with the Ground wire. Sub panel on detached Garage. Attach the White neutral wire to the Neutral ground bar. Attach the ground to the ground bar on the Sub panel. Pull the permits and have it inspected! If your house has the wires from the meter going straight into your panel box then you tie the neutral and ground to the same busbar. However; If you havve a disconnect on the outside of your house then you must separate the neutral andground inside the 200 amp panel box. This is usually prevalent on a mobile home or any time the pnel box you are using is fed from another panel or disconnect.

Can you install Electric meter on detached garage?

Question Needs Clarification!! If you are building a houseand you want the meter mounted on your detached garage to feed the house that is a question that your local utility or electrical inspector would hav to answer as it varies . If you want a meter on your garage that to would have to be answered by your utility as they have requirements about running service wires on residential property. they will probanly allow this as they usually charge more for having the service to a "commercial" building. The bse rate in my locality is twice that of a residential service. And even though it is your personal garage they consider it commercial in most places.

In a new house with only the standard outlets in the garage on a 20 amp breaker what is the biggest breaker you can put on the circuit?

Could you clarify the question please. You can't just upgrade the breaker. Its calculated on wire size and other things. You'll have to run different wire if you want to up your amps.

What type of house did edward Jenner live in?

in a semi detached house by Will Wilde

Where is the house in the Phineas and Ferb game?

Yes there is a house and there is a garage but you can't to the garage til' you get to world 4. Then you can go in the garage. You just can't go in the house.

How do you say detached house in German?

Freistehendes Haus

What do they call houses in Germany?

house = Haus detached house = Einfamilienhaus semi-detached house = Zweifamilienhaus Flat = Wohnung apartment = Apartment apartment block = Wohnblock bungalow - Bungalow tenement = Mietskaserne

Where is the circuit breaker in a garage?

If your circuit breakers are in the garage, they would be in a electrical panel (a metal box mounted on a (usually) outside wall, with the electric meter on the outside. The circuit breakers can be either just below the meter on the outside on opposite it inside the garage. It would usually be very close to where the electric connection to the house is. The electrical panel and breakers are not necessarily in the garage.