Black Adapter NEMA L6-30P to NEMA L6-20R 30A 250V
Reference guide:Locking power cords guide →
1
configurations
About Black Adapter NEMA L6-30P to NEMA L6-20R 30A 250V
Black NEMA L6-30P to L6-20R Locking Adapter Cords are used to convert a 30A power supply to a 20A connector to be used on a plug that requires less power than the supply source.
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 L6-30P
- 30 Amps
- 250 volts
On 1 of the cords here
The NEMA L6-30P is a 3 Wire 3 Blade grounded device with hot-hot-ground wiring and is rated up to 250V AC and 30 Amps. The NEMA Locking Plugs are designed for high traffic areas in industrial and commercial settings where unplugging is a possibility. This plug connects to NEMA L6-30R Receptacle/Connector.
Mates with NEMA L6-30R Outlet

Connector
NEMA L6-20R
- 20 Amps
- 250 volts
On 1 of the cords here
The NEMA L6-20 Connector is rated for 250V and 20A. It is wired as HOT-HOT-GROUND, meaning this connector does not have a neutral conductor. L6-20 and L6-30 connectors are commonly found on in-rack power distribution units in applications where the main supply voltage is greater than 120 V. The locking capability and high power output also makes these connectors common in industrial settings for powering large equipment.
Mates with NEMA L6-20P Inlet
About Black Adapter NEMA L6-30P to NEMA L6-20R 30A 250V
World Cord Sets supplies black adapter nema l6-30p to nema l6-20r 30a 250v 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
250 volts
Plug (male end)
NEMA L6-30P
Connector (female end)
NEMA L6-20R
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.
