The short answer
Match the cord's amp rating and plug type to the generator outlet and the load, use the heaviest gauge and shortest length that reaches, and never use a cord that is frayed, wet or modified. A male-to-male cord used to power a house is dangerous and illegal in many places.
The rules
- Choose a cord rated for outdoor use and at least as many amps as the load draws.
- A lower AWG number means thicker wire: heavier loads and longer runs need a lower number.
- Longer cords lose more voltage; do not coil a cord that is carrying a heavy load.
- Do not run cords through doors or windows that pinch them, under rugs or through standing water.
- Replace any cord with exposed wire, cracked insulation or warm connectors.
Wattstanding calculationWatts = volts × amps. A 120 V, 20 A cord is good for about 2,400 W; a 240 V, 30 A circuit for about 7,200 W. Plan for about 80% of the rating for continuous loads.
Cords and adapters in the catalog
See the generator cord table and the adapters and parallel kits, filterable by amps, length and connector. Check the compatibility matrix before choosing a connector.
SafetyNever use a cord with a plug on both ends to feed power into a house. Use a transfer switch or interlock installed by a licensed electrician.
Figures marked as Wattstanding calculations show their working; product figures come from the sources on each product page. How we work