220V Extension Cords in the US: Everything You Need to Know

When dealing with high-voltage electrical needs, such as 220V outlets, it's essential to understand the types of extension cords available and how to use them safely. This guide will explore the availability and specifics of 220V extension cords in the United States, including different NEMA plug types and important safety considerations.

Availability of 220V Extension Cords

Yes, you can buy 220V extension cords in the United States, although they might be more difficult to find compared to standard 120V cords. Online shopping can be a more reliable method for finding these specialized extension cords, especially from larger home improvement stores like Home Depot. Box and hardware stores generally stock a wider variety of 120V products, so online sources offer a broader selection.

Click here for an example of a 220V extension cord. Simply searching for "220v extension cord" online can lead you to a variety of options that fit your needs.

NEMA Plug Types for 220V Outlets

One of the most common types of 220V connectors in the US is the NEMA 6–20 receptacle. This type of receptacle is often found in garages, workshops, and utility sheds. It is connected to the electrical panel with a 20A dual-pole breaker, ensuring a safe and reliable connection for high-current devices.

The NEMA 6–20 plug is used for devices such as electric vehicle chargers, such as the charging cord for the author's Chevrolet Volt. If the charging station is in a convenient location, it might be advisable to install the charger directly. However, if the location is not ideal, an extension cord can be used as a solution. It's crucial that the extension cord you use is rated for 20A to avoid risks of fire or electrical damage.

Other 220V Plugs and Extension Cords

There are several other NEMA plug types designed for 220V outlets, each with different amperage ratings:

NEMA 6–15: Typically used for 240V air conditioners. While extensions can be made, it's generally recommended to keep the cord as short as possible to minimize electrical risks. This plug type is less common due to low demand and low supply, making them expensive. NEMA 10–30 and 10–50: These plugs were previously used for dryers and ranges. They have been replaced by more modern NEMA 14–30 and 14–50 plugs for 30A and 50A ratings, respectively. While extensions might technically be possible, they are not commonly recommended due to the high current demands of these devices.

Conclusion

Whether you're setting up a workshop, preparing for an electric vehicle, or dealing with high-voltage electrical needs, finding and using 220V extension cords safely requires knowledge of the appropriate NEMA plug types and current ratings. Always prioritize safety when working with high voltage and consult local regulations to ensure compliance.

References

For a detailed look at NEMA plug types, you can explore the following resources:

Example of a 220V extension cord NEMA Standards Home Depot for product examples