Black NEMA 5-20P to NEMA L5-30R Straight to Locking Adapter Cords
Reference guide:Locking power cords guide →
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configurations
About Black NEMA 5-20P to NEMA L5-30R Straight to Locking Adapter Cords
Black NEMA 5-20P to Locking L5-30R Straight to Locking Adapter Cords is designed to adapt a standard straight blade connector to a twist locking version. Be cautious of adapting locking to straight blade plugs, as the manufacturer likely used the locking plug to prevent against un intentional unplugging. If your plug is used in a high traffic area the unplugging of an operating machine can damage the equipment or operators.
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 1 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 L5-30R
- 30 Amps
- 125 volts
On 1 of the cords here
The NEMA L5-30R is a twist-locking NEMA connector that is rated for 125VAC and 30 Amps of power in North America. It is designed to mate with the matching NEMA L5-30P Plug type. The Twist Lock configuration can lock into place by twisting the plug and connector after mating. This is an effective solution for high-traffic areas and powering equipment like electrical motors that should not be unplugged under load.
Mates with NEMA L5-30P Inlet
About Black NEMA 5-20P to NEMA L5-30R Straight to Locking Adapter Cords
World Cord Sets supplies black nema 5-20p to nema l5-30r straight to locking adapter 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 1+ 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 L5-30R
Certifications & compliance
- UL
- cUL
- RoHS
- 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.