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Any size two pole breaker up to the value of 100 amps. Just make sure that the wire used to connect to the sub panel from the main panel is of a size to correspond to the breaker size. Wire amperages at 90 degrees C are, 30 amp #10, 40 amp #8, 55 amp #6, 95 amps #4,110 amps #3. Also keep in mind to look and see if the sub panel is rated at 100% or 80% load capacity. If it is only 80% load capacity then reduce the amperage rating of the conductors by 80% to obtain their new capacity rating.
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What size wire is best to run for a breaker box piggy back from another breaker box?
The wire is sized to the breaker in the main box that is feeding the subpanel. The calculations for the subpanel is based on what devices will use the subpanel and an estimate of duty factors for the devices. An electrician can provide this information, or you can look on-line in the National Electric Code for estimation methods.
How do you read breaker box amps?
The main breaker will have marking indicating size of electrical service, or if it is a fuse system....the fuses will have current ratings. If it is a subpanel, it might not have a main breaker. In this case you would have to look in the panel that the feed is coming from and find the size of the breaker that is feeding it. In either case you must look for the manufacturer's label that will have the maximum current the panel can handle, make sure the breaker feeding the panel doesn't exceed this rating.
Can you run an additional breaker panel parallel to the existing one?
It is not in parallel. You put a breaker in existing panel and use that to feed the subpanel. The Amperage of this subfeed breaker should match the rating of the new panel. For example a 100A breaker might be typical. Remember that ground and neutral are only "bonded" at the main panel. Usually a subpanel has a means to separate the neutral and ground in a subpanel. Be careful since everything about doing this is dangerous.Another AnswerYes, you can have two breaker panels in parallel. If you had a 100 amp panel on a 200 amp service (or increase the size of the service, check with your power company on the size of your service, you could add a second 100 amp panel in parallel with the first. You can have up to 6 disconnects per service, but they must be located adjacent to each other or in the same enclosure. So either install the second panel beside the first or a 100 amp disconnect beside the first panel and feed out of the disconnect to the new panel located where you need it.
What is breaker size for 240 volt 9 KW?
The formula you are looking for is I = W/E.
What size wire for 28 amps?
Minimum size is 10 gauge with a 30 amp breaker. To be safe I would install an 8 gauge with a 40 amp breaker.
What size wire is best to run for a breaker box piggy back from another breaker box?
The wire is sized to the breaker in the main box that is feeding the subpanel. The calculations for the subpanel is based on what devices will use the subpanel and an estimate of duty factors for the devices. An electrician can provide this information, or you can look on-line in the National Electric Code for estimation methods.
Is the main circuit breaker is a sum of the sub circuit breaker?
Typically yes because that is what makes sense. However, the subpanel could have the same size breaker as long as the panel were rated for that amperage and the wire sizes were appropriate.
How do you read breaker box amps?
The main breaker will have marking indicating size of electrical service, or if it is a fuse system....the fuses will have current ratings. If it is a subpanel, it might not have a main breaker. In this case you would have to look in the panel that the feed is coming from and find the size of the breaker that is feeding it. In either case you must look for the manufacturer's label that will have the maximum current the panel can handle, make sure the breaker feeding the panel doesn't exceed this rating.
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.
Can you run an additional breaker panel parallel to the existing one?
It is not in parallel. You put a breaker in existing panel and use that to feed the subpanel. The Amperage of this subfeed breaker should match the rating of the new panel. For example a 100A breaker might be typical. Remember that ground and neutral are only "bonded" at the main panel. Usually a subpanel has a means to separate the neutral and ground in a subpanel. Be careful since everything about doing this is dangerous.Another AnswerYes, you can have two breaker panels in parallel. If you had a 100 amp panel on a 200 amp service (or increase the size of the service, check with your power company on the size of your service, you could add a second 100 amp panel in parallel with the first. You can have up to 6 disconnects per service, but they must be located adjacent to each other or in the same enclosure. So either install the second panel beside the first or a 100 amp disconnect beside the first panel and feed out of the disconnect to the new panel located where you need it.
What is breaker size for 240 volt 9 KW?
The formula you are looking for is I = W/E.
What size wire should be used from main panel to 50 watt subpanel?
#6 wire is needed. If placing the subpanel in a garage at a good distance, it is recommended to also install a seperate ground rod .
What size wire do you need for a 100amp braker?
Service entrance wire should be AWG #3 copper.
What size wire for 28 amps?
Minimum size is 10 gauge with a 30 amp breaker. To be safe I would install an 8 gauge with a 40 amp breaker.
What size breaker would e needed for 10.8 amps?
In standard construction this would require a 15 amp breaker and 14 gauge copper wire.
What size wire would you use on a 30amp breaker?
AWG # 10 wire.
I have 100 amp breaker box I want to put a 60amp double pole breaker in and run 60 amp wire to me garage. Do the y make a 60 amp breaker box with more then 4 breaker slots. or can you run 60 amp wire?
Rated for exactly 60amps you will find limited breaker spaces due to the rating of the hardware used in it's construction and air circulation restrictions from the equivalent limited enclosure area. When rated at a determined amperage level it is required to construct the device based on the worse case possible scenario which includes a continuous running load. This will determine it's minimum standards according to local and national codes for hardware, room, spacing, and, layout. This does not limit you to only this size panel though. As long as you install the 60amp breaker first in your house panel anything installed down stream {from the load side of the 60amp breaker will be protected up to 60 amps. Therefore you are permitted to exceed those ratings and still remain within code because regardless of what your load is, it can not exceed 60 amps without tripping the breaker. You can install a 12/24 {12-full size or 24-half size [mini's]} 100amp panel for additional breaker spaces and the cost difference is negligible. One code issue to consider is if the sub panel in the garage is not in line of sight of that 60amp breaker then you might want to install another 60amp breaker in the garage panel to interrupt the incoming power giving you the ability to work on/in the garage panel without the possibility of someone re-energizing it mistakenly. I would suggest before this to consult with an electrician for a load calculation to determine if there is 60amps of available power in the 100amp panel in the home. This panel may not have an over-current 100amp main breaker which means it is possible to exceed the panel rating of this unprotected panel. Installing a 100amp over-current device {breaker, fused safety switch, fuse block etc...} like your 60 amp breaker to the garage it will limit the total load to only 100amps. Good Luck and obtain all permits and full understanding of the project and safety protocols in it's regards.
