# What gauge wire do I need for 220 volts?

Category:
automotive
auto parts

If you're

**wiring**a 220v, 20-amp outlet to run power tools, you**can**use the same 12-**gauge wire**you**would**use for a 110-**volt**, 20-amp circuit. Remember that the cable must**have**an extra hot**wire**. If the appliance draws 30 amps, you**need**a different type of receptacle, and the cable**needs**to be 10-**gauge**.

Likewise, people ask, what size wire do I need for 240 volts?

Use 12-**gauge wire** for a 20-amp circuit, 10-**gauge** for 30 amps, 8-**gauge** for 40 amps, and 6-**gauge** for 50 amps.

**220**outlets and each one is 20 amps. You'll need to use #8 wire for the whole circuit including a 40

**amp breaker**.

Beside above, what size wire do I need for a 30 amp 220v circuit?

Any **circuit** fused for **30 amps** must use a minimum of 10 ga copper or 8 ga alu. Longer runs may require an upgrade of **wire size**. In your case, use at least 10 copper for your welder regardless how far it is from the **breaker** panel.

Usually, the small outlets can handle 7 **Amps**. So, for a 220V conventional outlet, the most power that **should** be connected to it is 1540 Watts! Is **you need** more Watts of power for something like tumble Dryer with heater element, **you need** a large power outlet that can handle 10 or 20 **Amps** (2200 W to 4400W).