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30A 250V NEMA L6-30P Power Cords

15–30 Amps250 voltsNEMA L6-30PRoHSULcULREACH

Reference guide:NEMA connector guide →

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About 30A 250V NEMA L6-30P Power Cords

Extending a L6-30R receptacle with a L6-30 extension cord.

The L6-30R Locking Receptacle is commonly found in industrial environments and due to the 30 Ampere rating, it requires large cabling that is expensive to install so it will most likely be in a place with intent. If the electrician installs the outlet, and the equipment has to be adjusted after it is possible you will need an extension cord to extend the power source. Luckily, we stock many lengths, and we ship on the same day on stock items.

NEMA L630P power connector options.

We stock many combinations of the L6 30 with various connectors. For example, the Nema L6-30p to c13 we offer in 14awg and is our lowest rated cable of the series. We also have several lengths available with the other common IEC 60320 connectors such as C15, C19, and C21. If you are looking for extending power, we have an indoor-rated indoor 250v twist lock extension cord that utilizes a 10awg wire. If you're providing power to more than one piece of equipment from a single L6-30R Receptacle, you should consider one of our L6 30p splitter cords. For this product line series, we only stock cables in black, and generally will utilize a wire gauge that is most prevalent to the connector amperage rating.

The plugs and connectors in this collection

What each end is, what it mates with, and where to find every cord built on it.

  • NEMA L6-30P plug

    Plug · NEMA

    NEMA L6-30P

    • 30 Amps
    • 250 volts

    On 33 of the cords here (67%)

    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

    You are on the NEMA L6-30P family page.

  • NEMA L6-30R connector

    Connector

    NEMA L6-30R

    • 30 Amps
    • 250 volts

    On 22 of the cords here (45%)

    The NEMA L6-30R (female) is a 3 Wire 3 Blade grounded device with hot-hot-ground wiring and is rated up to 250V AC and 30 Amps. This is a twist-lock device, insert the plug into the connector and turn. Locking cords are typically used in industrial applications to ensure that accidental power loss does not occur due to a loose connection.

    Mates with NEMA L6-30P Inlet

  • IEC 60320 C19 connector

    Connector · IEC 60320

    IEC 60320 C19

    • 20 Amps
    • 125/250V

    On 6 of the cords here (12%)

    The IEC 60320 C19 is a grounded 3 Wire connector rated up to 250V and 20 Amps. The C19 mates with a C20 inlet, and is commonly used in a jumper cable scenario in IT Installations providing power from a PDU to a server, router, switch or other computing device. The C19 is typically used in high powered blade server chassis, large network routers, and other IT equipment that draws more power than a standard C13 can accommodate.

    Mates with IEC 60320 C20 Inlet

  • IEC 60320 C13 connector

    Connector · IEC 60320

    IEC 60320 C13

    • 15 Amps
    • 125/250V

    On 3 of the cords here (6%)

    The IEC 60320 C13 is a grounded 3 Wire connector rated up to 250V and 15 Amps. The C13 mates with a C14 inlet, and is commonly used in a jumper cable scenario in IT Installations providing power from a PDU to a server, router, switch or other computing device. Most people know the C13 as 'the thing that plugs into my computer' because it is the standard connector used to power most desktop computers. In a desktop computer application, the most common cable is the NEMA 5-15P to C13, which connects your standard North American wall outlet to a desktop computer.

    Mates with IEC 60320 C14 Inlet

About 30A 250V NEMA L6-30P Power Cords

These power cables are among the highest power supplies before getting into industrial grade power (IEC 60309). The NEMA L6-30P generally supplies power to large devices and equipment in machine shops or data centers from an L6-30R Receptacle. In data centers this can be situated above the data rack and be twist-locked into place. In industrial environments the locking power source is generally located on a support beam or side wall, unless the ceilings are low enough to supply power outlets on the ceiling.

General Information

The L6-30P Series is generally used for in-rack power distribution units (PDUs) where the main supply voltage is greater than 120V, in order to provide more power through high amperage rating. Due to this high power draw, this NEMA 250V and 30A combination is only offered as a locking connection. It is important that the power draw of a splitter does not exceed what it is rated for, when considering the total power of all legs of the splitter. 

Related

Choosing the Right NEMA L6-30P Cord for Your Application

Extension Cords vs. Whips vs. Splitters

Three cord types ship from this family, and picking the wrong one is the most common ordering mistake:

  • L6-30P → L6-30R extension cord — adds distance between an L6-30R wall receptacle and equipment with an L6-30P inlet. Available in 10 AWG SJT for the full 30 A rating.
  • L6-30P → IEC C13 / C15 / C19 / C21 whip — connects an L6-30R PDU outlet directly to a server, switch, or high-temp device. Wire gauge follows the connector's amperage: 14 AWG for C13/C15 (15 A), 12 AWG for C19/C21 (20 A).
  • L6-30P splitter cord — feeds two receptacles (2× C19 or 2× L6-20R) from one L6-30R source. Never exceed the source circuit's 30 A rating across all legs combined.

Wire Gauge and Ampacity

The L6-30P plug is rated 30 A / 250 V, but the cord's ampacity is set by its wire gauge and the downstream connector:

  • 10 AWG — required for 30 A runs (extension cords, pigtail whips).
  • 12 AWG — used on 20 A connectors (C19, C21, L6-20R).
  • 14 AWG — used on 15 A connectors (C13, C15).

All cords are hi-pot tested before shipment. UL and cUL listings are noted on each product page.

Current rating

15–30 Amps

Voltage rating

250 volts

Plug (male end)

NEMA L6-30P

Certifications & compliance

  • RoHS
  • UL
  • cUL
  • REACH
  • 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 is the difference between an L6-30P extension cord and an L6-30P whip?
An L6-30P extension cord has an L6-30P plug on one end and an L6-30R locking connector on the other, letting you extend the reach of an existing L6-30R receptacle. A whip (or jumper) has an L6-30P plug on one end and a different connector — such as a C19 or C13 — on the other, used to connect a PDU outlet directly to equipment. Both types are stocked here in multiple lengths.
Can I use an L6-30P cord to power multiple devices at once?
Yes — L6-30P splitter cords let you feed two devices from a single L6-30R receptacle. Options include L6-30P to 2× C19 and L6-30P to 2× L6-20R configurations. When using a splitter, the combined current draw of all connected devices must not exceed the 30 A rating of the source circuit.
What wire gauge do NEMA L6-30P power cords use?
Wire gauge depends on the downstream connector's amperage rating:10 AWG — 30 A runs, such as L6-30P to L6-30R extension cords.12 AWG — 20 A connectors, such as C19, C21, or L6-20R.14 AWG — 15 A connectors, such as C13 or C15.All gauges are listed on each individual product page.
Are NEMA L6-30P cords available in custom lengths?
Yes. In addition to the stocked lengths shown on this page, custom lengths are hand-terminated at the World Cord Sets facility in Connecticut. Lead time for custom builds from in-stock components is typically 3–4 business days. Contact the sales team or use the online configurator to request a quote.