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1/0 copper thhn covering. 3/0 aluminum again thhn covering

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14y ago
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11y ago

AWG 1/0 gauge will suffice.

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Q: What wire size for 100 amp sub panel 250 ft from main panel?
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What wire size do you need for a 125 amp panel with a 100 amp main breaker?

A #3 copper conductor with an insulation factor of 90 degrees C is rated at 115 amps. Even though the panel is rated at a higher amperage it is the main breaker that governs the wire size.


Can you install a 150 amp meter base and still have a 100 amp main panel?

The wire size in a meter stack is governed by the size of the first over current device.


What size ground wire is needed for a 100 amp service panel?

#8 is the size of wire to use for grounding a 100 Amp panel. Green is color used for grounding #8 is code.


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

20Sqmm


Do you need a main disconnect on the feeder wires running to a detached garage running from the box in the house?

Yes you do. The detached garage will either be fed with a single circuit or a sub panel. The wire feeding the garage will need to be protected and that is the purpose of the breaker (disconnect). The breaker size will be determined by the size of the wire that is used on this circuit.


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.


How do you ground a 100 amp service panel?

In the service distribution panel there are termination points at the top of the panel. Two of the utilities "hot" conductors terminate on the main breaker. The neutral utility termination point is on a terminal block usually off to the side near the main hot terminations. It is in this neutral termination block where the system ground connects from the ground rods to the distribution panel. For a 100 amp panel the wire size will be a #6 bare copper conductor.


How decide Electrical Main Feeder size?

It is based on the amperage of the service panel in a single phase home panel useing copper wire use. 100 amp use AWG # 3 copper 200 amp use AWG # 3/0 copper


What size wire for 100 amp panel in detatched garage?

i just left lowes an they told me to run 100 amp to my building i would need wire size 2-2-2-4 alumninum and run it in conduit the lowes around here does not sell copper wire that size


What is the largest sub panel you can install off from a 60 amp main panel fed by 100 amp service?

If what you state in this question is accurate this is an illegal installation. A 100 amp service can not have any equipment connected to it less that that of the service size. The 60 amp main panel must be a 100 amp panel to be a legal installation.


Can a 100 amp main have 2 50 amp breakers?

Yes.Additional InformationBreakers and fuses protect the wires to prevent fire. The 100 Amp breaker in the meter base (main) protects the wire from the meter base to the breaker panel. The 50 Amp breaker in the breaker panel protects the wire from the breaker panel to the outlet. Sometimes the 100 amp main breaker is located in the panel.If you are asking "Can you use two 50 amp breakers for the main breakers with a 100 amp service, then yes you can. The National Electrical Code allows you to use up to 6 breakers as the main overcurrent protection.


What size of ground wire for a bank of 3 one 100 amp panels?

#8 would be fine if you ground each panel separately to the ground rod