NEMA 5-20 Extension Cords
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NEMA 5-20P
General Information:
The NEMA 5-20P is a 3 Wire grounded plug featuring two blades and one ground pin rated up to 125V AC and 20 Amps. The NEMA 5-20P is used in applications that require higher power draw such as large refrigerators, space heaters, large kitchen mixers, etc. The 5-20R T-Slot receptacle allows you to plug in either a 5-20P or a 5-15P plug, allowing greater flexibility. In modern home installations, 5-20R T-Slot receptacles are often used when 20A circuits are installed due to flexibility of being downward compatible with the 5-15P.
What does a NEMA 5-20P Connect to?
 |  | The NEMA 5-20 Plug connects to both the NEMA 5-20R Connector and the NEMA 5-15/5-20R Wall Outlet. The connector is commonly found on Extension cords, and the NEMA 5-15/5-20R Wall Outlet is the standard power supply outlet in all residential and commercial construction in North America. |
NEMA 5-20R (T-Slot)
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General Information:
The NEMA 5-20R (T-Slot) is a 3 wire grounded connector rated up to 125VAC and 20A. The 5-20R T-Slot receptacles are often used when 20A circuits are installed due to flexibility of being downward compatible with the 5-15P. The Receptacles are the defacto power supply for all of North America. This connector is found on our 5-20 Extension cord Series, used commonly for extending power from a standard NEMA 5-20R wall receptacle to a given location for convenience. It is commonly used with 12awg or 15awg depending on the application and the required amperage.
What does the NEMA 5-20R Connect to?
 |  | The NEMA 5-20R Connector is designed to connect to both the NEMA 5-15P and the NEMA 5-20P. The T-Slot allows both variations to be plugged in, making this connector more versatile and therefore more widely used across all industries. |
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