AWG wire might have 100A ampacity, but it should only be used in circuits that require 80 Amps or less.
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What size wire do I need to run 100 amp Service 100 feet?
In large commercial buildings, this wire is used when the run between the breaker panel and the electrical load is long. If the distance between the breaker panel and the electrical load is short in a home or small business, a #4 AWG wire is required.
Can I use #4 copper wire for 100 amp service?
If you want to go up to the next standard size of 90amps, you have to use the fourth copper, which is good for 85 Amps. If you want to use a 100 Amp OCPD, you’ll need to increase your conductor size by a quarter inch. If you are going to run a 120 amp load then you need a conductor that is at least 3/8 inch in diameter.
This is because the 120 amps will be split between the two wires. You will also need an extra conductor to connect the power supply to your computer. Copper has a higher melting point which makes it easier to work with. Stainless steel is more resistant to corrosion. It is also more expensive than copper.
What size wire do I need for 100 amp service 300 feet away?
For 300 feet for 100 amp rated service I would use Aluminum direct burial 1/0-1/0-1/0-1/0, the forth can be as low as #4 for the ground (but also in conduit, even if in conduit must still be rated underground wire and required by code also) Also note the size wire is not the same as the diameter of the wire, it is the total length of wire.
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What size breaker do I need for a 100 amp subpanel?
If you want to use the full 100 amps, the correct breaker is a 100amp breaker. Many panels come with a main breaker. If you have a panel that has a 120-volt breaker, you can use a 50 amp breaker instead of the 120 amp one. You will need to add a second breaker to the panel to handle the extra 120 volts.
How many 30 amp breakers can I put in a 100 amp panel?
Up to 16 full-sized breakers and four twin breakers can be accommodated by a 20/24 panel. If you add too many breakers, it’s possible to overload the panel. The number of breakers should not exceed 80% of the panel’s maximum capacity according to the U.S. Department of Energy.
If you want to add a breaker to an existing panel, you’ll need to remove the old panel and replace it with the new one. You’ll also need a new breaker box.
