The minimum size is determined based on the circular mil area of the service or system conductors and/or equivalent area of parallel conductors. In parallel installations both ungrounded (hot) and grounded (neutral) conductors must be at least size 1/0 AWG.Click to see full answer. Thereof, does neutral wire need to be same size?The “neutral” wire should ALWAYS be the same size as the “hot” wire. That said, that isn’t alway true either, as there is the case of a 220/120 vac appliance, such as an electric stove/oven. The cord on those will have a smaller neutral.Secondly, how do you size a neutral conductor? Sizing the neutral: Sec. 220-22. You must size the neutral conductor to carry the maximum unbalanced current in the circuit (i.e. the largest load between the neutral and any one ungrounded phase conductor). You calculate the first 200A of neutral current at 100%. Simply so, what size neutral is required for a 200 amp service? It really depends on the electrical codes in your area. 200 A services are usually #3/0 copper. Sometime you can use a reduced neutral, sometime codes prohibit it.What size wire do I need for a 200 amp underground service?You need a minimum of #6 ground or #4 aluminum for 200 amps. I would recommend just getting 4/0-4/0-2/0-4 quadplex as it is all rated for direct burial. A conductor is a wire that is used to carry electrical power.
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