It’s still reasonably inexpensive when compared to copper wire. Here’s a chart of some examples of aluminum wires and their sizes based on their ampacities:Ī copper-clad aluminum wire is more durable than its standard counterpart. However, this lightweight and fairly less conductive construction also means sizing differs when choosing the correct aluminum wire size. It’s also lighter than its copper sibling, making it ideal for budget-conscious property owners. Take note of the benefits and drawbacks of using either option to ensure the circuit runs smoothly and safely.Īlthough aluminum isn’t as sturdy as copper, it’s a relatively inexpensive option. These wires can either be aluminum or copper-clad aluminum. Oftentimes, you would need two wires for underground electrical service. Here are some examples based on certain voltage and circuit distance requirements: This element generally coincides with the distance needed for the circuit. Voltage is another factor that plays a role in choosing the correct cable size. It should provide adequate current without being heavy. You may also use a 4/0 aluminum conductor to save costs. On the other hand, a 3/0 copper wire can be a better option than a 2/0 variant to provide adequate surge protection, particularly during thunder and lightning storms. Generally, a 2/0 copper wire is ideal for a 200-amp service that’s below the ground. Aside from the distance, you should also consider the amperage and voltage of the electrical service. What is the Correct Wire Size for 200 Amp Service Underground?Īs mentioned previously, the appropriate gauge wire to use for a 200-amp underground service often depends on multiple factors. The Length Your Service Wire Runs Matters.What is the Correct Wire Size for 200 Amp Service Underground?.Please note Wire And Cable Your Way does recommend consulting with a local electrician who can advise you on all local codes and other variables that may effect the wire size needed such as the length of your run.įeel free give us a call at 85 or email us here with any questions. Single Conductor #1 gauge Aluminum WireĬlick here for pricing on #1 gauge Aluminum wire 3.) 2-2-2 Ramapo Triplex Underground Secondary Distribution Cable for 100 Amp Sub-PanelĬlick here for pricing on 2-2-2 (URD) Triplex Aluminum Underground CableĪll of the cables above are in stock, available by the exact foot you need, and shipped the same day ordered.Single Conductor #2 gauge Aluminum WireĬlick here for pricing on #2 gauge Aluminum wire 2.) #1 XHHW-2 Wire for 100 Amp Sub-Panel.Rated for direct burial - no need for conduitĬlick here for pricing on #2/3C with ground Tray Cable (THHN-PVC) Aluminum Wire 1.) #2 XHHW-2 Wire for 100 Amp Sub-Panel.
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