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Judging by your question I'm going to take a guess and say you should probably not attempt to do this yourself. Nor do I recommend it.
That being said.
You can either have your service upgraded to 200amp, and install a 100amp double pole breaker and branch it off into a 100 amp sub panel. You could most likely re-use your old panel for the 100 amp sub panel.
Or...
You could have your new 200 amp panel installed in a different location and your current panel wired into it for 100 amps.
Wiki User
∙ 14y ago
Wiki User
∙ 13y agoYes this is possible. You are still limited to 200 A overall. You would need a permit and a load calculation to ensure you are not creating a situation where you would be creating excessive load.
Wiki User
∙ 12y agoYou can as long as you don't assume that this gives you another 200 Amps to use. Your overall amperage will still be only 200 Amps. You can supply the sub-panel with a smaller breaker than 200 Amps.
Wiki User
∙ 9y agoYes. The interconnecting conductors have to have the same rating as the main distribution conductors. If the sub panel is detached from the main home, the sub panel has to be treated as a new service. This means that the service has to have its own ground rods or plates and the neutral has to be bonded to the enclosure of the sub panel.
Wiki User
∙ 10y agoYes, if you have the correct size #2 wire going to it.
Wiki User
∙ 15y agoNo
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What is the minimum service size for a 225amp residential service?
A 200 amp service panel with a 60 amp sub-panel.
What size breaker do you use for a 100 amp sub panel?
A 100-A sub-panel would be fed from a 100-A breaker.
Is a 50 amp sub panel enough to do a bathroom and kitchen?
Possibly if the kitchen does not have an electric over and electric cook-top and no eclectic water heater in the bathroom. If they are electric have an electrician evaluate what is being powered in the kitchen and the bathroom to determine if a 50 amp sub-panel is large enough. I would for sure at least go with a 60 amp sub-panel.
Can you put a 60amp breaker and a 50amp breaker on a 60amp subpanel just as long as they are not being used at the same time?
You can. Using these size breakers in a 60 amp sub panel might be pushing the limit for breaking the sub panels feeder breaker. The breaker feeding the sub panel will have to be no bigger than 60 amps because of the main bus bar capacity of the sub panel. It would be better to install a 100 amp sub panel and then there would be a bit of a buffer and you will have the ability to add additional small load circuits.
What is an electrical bonding strap?
How do i install aluminum bonding strap in sub panel of 100 amp service
Can you feed a 60 amp sub panel from another 60 amp sub panel?
Yes
What would happen if a 200 amp breaker is used in a 100 amp sub panel?
There are two things to think about here. First of all a 200 amp breaker will not physically fit into a 100 amp panel. This is so designed because the panel buss is not designed to conduct 200 amps before the current is cut off. A 100 amp rating on the panel is the maximum amount of current that the manufacturer states, that can be handled safely. Second if the 200 amp breaker is in the main panel then everything downstream from that breaker has to be rated for 200 amp conductivity. The wire size will have to be 3/0 from the breaker to the first over current device in the sub panel which will be the sub panel's main breaker. The sub panel can not be a load center but will have to be a combination panel. I doubt that the 100 amp sub panel's main breaker lugs would be large enough to connect the 3/0 cable.
What size wire is needed to feed a 125 amp sub panel from a 200 amp panel less than 200 wire feet away?
A #1 copper wire with an insulation rating of 90 degrees C is rated at 140 amps.
How do you wire a garage sub panel box from a 100 amp breaker in the house main panel?
you propaly can't sub panel from 100 amp panel. Just not enough amperage to be worth while. i had to up grade t a 200 amp main first and then I was able to take a 60 sub panel from that.
What is the minimum service size for a 225amp residential service?
A 200 amp service panel with a 60 amp sub-panel.
What size breaker do you use for a 100 amp sub panel?
A 100-A sub-panel would be fed from a 100-A breaker.
Can 100 amp distribution panel feed a 70 amp sub panel?
Yes they can. As long as the total load of all subs does not exceed the rated capacity of the main breakers, you should be fine, including 80 percent de-rating of any constant loads.
How many grounding rods are needed for 200 amp service?
It depends on where the sub panel is situated. If the panel is under the same roof as the main distribution panel then no ground rods are needed on the sub panel. If the sub panel is in a different building then a ground rod might be needed. There has been an electrical code rule change on this subject. Check with your local electrical inspector before installation so that it is done correctly.
What size aluminum ser cable needed for 100 amp sub panel?
#2 aluminum for 100 amp
Can you had a 20 amp breaker on your 70 amp sub-panel that has already 70 amp total on it that consist of one 50 and two 15 amp breakers and the panel has 4 available spaces out of 8?
SeeIf_a_100A_breaker_panel_has_five_15A_breakers_and_four_20A_breakers_could_this_overload_the_panel
Is a 50 amp sub panel enough to do a bathroom and kitchen?
Possibly if the kitchen does not have an electric over and electric cook-top and no eclectic water heater in the bathroom. If they are electric have an electrician evaluate what is being powered in the kitchen and the bathroom to determine if a 50 amp sub-panel is large enough. I would for sure at least go with a 60 amp sub-panel.
I have a Transformer 480 primary 208 secondary feeding 1 200amp mb 42 space panel I need to feed a subpanel 6 ft away I'm thinkin feed through lug at top of bus or at feed through MB suggestions?
The sub-panel need to be fed from the main panel, by way of a circuit breaker connected to one of the breaker locations. Or if your sub-panel has a main breaker installed you can feed from the main panel with a sub-feed lug kit. This looks like a breaker, but is only a point where you can branch off the sub panel.
