5 Things to Know About Generator Extension Cord Gauge

Use a 10-gauge cord for most portable generators Thinner wire heats up fast, drops voltage, and can melt or start a fire. A 10-gauge cord handles the current safely for typical portable generator loads.

Household extension cords won’t work Generator cords must handle serious current. Standard household cords are too thin and pose a fire risk.

Shorter cords can use slightly thinner wire For runs under 50 feet, a 12-gauge cord may work for smaller loads. But 10-gauge is still safer and more versatile.

Longer runs need thicker wire Over 100 feet, step up to 8-gauge or even 6-gauge to prevent voltage drop. Thinner wire over distance starves your equipment of power.

Match gauge to your generator’s output Check your generator’s wattage and the cord’s amp rating. A 10-gauge cord handles up to 30 amps, which covers most portable generators.