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This is a voltage drop question. A voltage value needs to be stated. Assuming that the 200 amp panel is a single phase 120/240 volt sub panel. A #1 copper conductor will limit the voltage drop to 3% or less when supplying 100 amps for 200 feet on a 240 volt system.

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โˆ™ 2011-09-25 00:57:13
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Q: What size wire for 100 amp panel 200 feet away from a 200 amp service?
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Related questions

What size service cable for 100 amp main panel 100 feet away?


What gauge wire to use for direct burial for a garage that is 400 feet from your house?

Depends on the size of the sub-panel in that garage. If you are installing a 60 amp sub-panel 400 feet away from the main service panel then use AWG # 4.

What size wire do you need to run overhead to a 50 amp service five hundred feet away?

For that distance I would run AWG # 3 copper and install a sub-panel.

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AWG # 4

What is the minimum service size for a 225amp residential service?

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Assuming the voltage is 240 volts, the wire size for a 100 amp panel at the end of 400 feet and holding the voltage drop to 3 %, the wire will be 3/0 in size.

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AWG 2/0 copper.

What size underground wire do you need from a 200 amp panel to a 100 amp panel 150 feet away?

Need to know what the load amperage is on the 100 amp panel. If interested, open discuss question page.

What size wire do you need for 50 amp sub panel about 100 feet away?

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