# 200 Amp Service Wire Gauge

### The hot and neutral wires will be 250kcmil aluminum, while the ground will be a 6awg bare copper wire (this saves on conduit fill).

200 amp service wire gauge. Wow, that savings on wire is huge, and way more than pays for the transformers in all cases. Voltage drop calculation would be [(2 x resistance of one circular mil foot of conductor) x lenth of wire x amps(load)] divided by circular mil of conductor used.

Put in your voltage 85' and expected full load. How many amps can 6mm wire carry?

200 amps will require 3/0 copper or 4/0 aluminum we would need to know how heavily loaded the circuit is expected to provide the correct wire size & for voltage drop.calculator this is easy to use code requires less than 3%. Each wire size, or wire gauge (awg), has a maximum current limit that a wire can handle before damage occurs.

Wire gauge for 125 amp subpanel. It is important to pick the correct size of wire so that the wire doesn't overheat.

Some locations allow the use of aluminum wire, but check with the local codes before proceeding. If you are planning on using aluminum wiring, keep in mind that it has lower conductivity than copper.

Over here in my area., the 200 amp residentails typically use 4/0 alum and some case if have to use copper for 200 amp residentails then use 2/0. All service entrance wires can be shipped to you at home.

Meter is on outside of brick building, panel will be located inside the building, between 2x4 studs. The sub panel will be located one floor below the 200 amp main panel and need about 14 feet of wire for a neat installation.

The awg gauge would be 2/0 copper or 4/0 al as a minimum requirement. The cable must contain one or two hot wires depending on your needs, one neutral wire, and one ground wire.

Too small of a gauge and you run the risk of electrical fire, poor circuit performance, and possible even death. If that 1/0 copper has some other protective device at it’s starting end, rated 175 amps or less, then it’s okay.

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