NEMA 5-20 Extension Cords
Reference guide:NEMA connector guide →
7
configurations
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In stock (162)Color — Black
Length — 1 Foot
About NEMA 5-20 Extension Cords
We stock several STANDARD lengths of NEMA 5-20 Extension Cords. Standard color is BLACK and standard gauge is 12awg. The NEMA 5-15P will fit into the 5-20R (T-Slot).
The plugs and connectors in this collection
What each end is, what it mates with, and where to find every cord built on it.
Plug · NEMA
NEMA 5-20P
- 20 Amps
- 125 volts
On 7 of the cords here
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 compatable with the 5-15P.
Mates with NEMA 5-20R Outlet
Connector
NEMA 5-20R
- 20 Amps
- 125 volts
On 7 of the cords here
The NEMA 5-20R connector is used to mate
Mates with NEMA 5-20P Inlet
About NEMA 5-20 Extension Cords
World Cord Sets supplies nema 5-20 extension cords from our East Windsor, Connecticut headquarters, with manufacturing across US and overseas facilities. Cords are tested and certified to spec before shipment. We stock 7+ configurations and build custom cords to order — hand-terminated builds from in-stock components typically ship in 3–4 business days. In-stock orders placed by 2:30 PM ET ship the same day from our Connecticut warehouse.
Current rating
20 Amps
Voltage rating
125 volts
Plug (male end)
NEMA 5-20P
Connector (female end)
NEMA 5-20R
Certifications & compliance
- RoHS
- UL
- cUL
- Every cord we build is hi-pot tested
- Same-day shipping by 2:30 PM ET
- NET 30/60/90 for approved accounts
- In-house engineering and compliance support
Frequently asked questions
- What certifications do these power cords carry?
- UL and cUL-listed cord sets across the catalog, with 30+ international approval marks (VDE, ENEC, PSE, SAA, CCC, KC and more) on country-specific cords. The approvals each part carries are listed on its product page; documentation is available from sales.
- Do you require a minimum order quantity?
- No. We sell from 1 cord to 100,000. Volume discounts apply automatically at quantity breaks — you'll see pricing tiers on every product page.
- Can I get a custom length or color?
- Yes. Custom lengths and non-standard colors are hand-terminated in our Connecticut shop — typically 3–4 business days from in-stock components. Call (860) 763-2100 or submit a quote request with your specs.
- How fast does this ship?
- In-stock orders placed by 2:30 PM ET ship the same day via FedEx or UPS. All standard configurations are stocked in East Windsor, CT.