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NEMA Twist Lock Power Cords| Dependable Power Supply North America

15–30 Amps125–250 voltsULcULRoHSREACH

Reference guide:Locking power cords guide →

251

configurations

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About NEMA Twist Lock Power Cords

NEMA twist lock versatile and secure use.

The NEMA Twist Lock is found in nearly all industries and is used for more of the critical circumstances where a power disconnection is not an acceptable nuisance. Each type of twist lock will have a predominant role in each industry, for example the NEMA L5-15p is more prevalent in commercial shops but the NEMA L6-30P will only be found in industrial environments powering large equipment. These cables are incredible versatile, as they are a standard plug-connector and can be securely installed by an untrained employee easily while still maintaining a strong and secure connection.

North America locking plug adapter options.

There are many NEMA Twist Locking Plugs available. To provide the most variety of the common configurations our customers use, our stock options are limited to the lower end of the NEMA Twist Lock cords. We stock 15, 20 and 30-Amp configurations of NEMA 5 (125 Volts) and NEMA 6 (250 Volts). We stock many molded connectors and length variations of these products to provide a solution for many specific requirements.

In-House made to order twist-lock cable production.

To service our customers' unique requests, we have a dedicated manufacturing team to facilitate made to order requests. If your project requires a specific length, or configuration power cord but you cannot wait for extended lead times we can build the configuration at our facility. Our team utilizes our extensive stock of molded power cables, and hand-terminates the plug or connectors at the required length. Our state-of-the-art testing and production processes ensure a guaranteed quality product to satisfy your custom requirements.

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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 L5-20P plug

    Plug · NEMA

    NEMA L5-20P

    • 20 Amps
    • 125 volts

    On 42 of the cords here (17%)

    The NEMA L5-20P is a 3 Wire 3 Blade grounded plug featuring three blades arranged in a circular pattern, rated up to 125V AC and 20 Amps. The NEMA L5-20P's blades are further separated than the NEMA L5-15P and is used in applications that require high amperage such as industrial/professional appliances. The locking feature prevents the plug from accidental disconnecting from the outlet, preventing power loss.

    Mates with NEMA L5-20R Outlet

    Shop all 20A 125V NEMA L5-20P Twist-Lock Power Cords →
  • NEMA L6-20P plug

    Plug · NEMA

    NEMA L6-20P

    • 20 Amps
    • 250 volts

    On 35 of the cords here (14%)

    THE NEMA L6-20P is a 3 Wire 3 Blade grounded device with hot-hot-ground wiring and is rated up to 250V AC and 20 Amps.

    Mates with NEMA L6-20R Outlet

    Shop all 20A 250V NEMA L6-20P Twist-Lock Power Cords →
  • NEMA L6-30P plug

    Plug · NEMA

    NEMA L6-30P

    • 30 Amps
    • 250 volts

    On 33 of the cords here (13%)

    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

    Shop all 30A 250V NEMA L6-30P Power Cords →
  • IEC 60320 C13 connector

    Connector · IEC 60320

    IEC 60320 C13

    • 15 Amps
    • 125/250V

    On 29 of the cords here (12%)

    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

    Shop all IEC 60320 C14 C13 Power Cords →
  • IEC 60320 C19 connector

    Connector · IEC 60320

    IEC 60320 C19

    • 20 Amps
    • 125/250V

    On 29 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

    Shop all IEC 60320 C20 C19 Power Cords →

About NEMA Twist Lock Power Cords| Dependable Power Supply North America

NEMA twist lock versatile and secure use.

The NEMA Twist Lock is found in nearly all industries and is used for more of the critical circumstances where a power disconnection is not an acceptable nuisance. Each type of twist lock will have a predominant role in each industry, for example the NEMA L5-15p is more prevalent in commercial shops but the NEMA L6-30P will only be found in industrial environments powering large equipment. These cables are incredible versatile, as they are a standard plug-connector and can be securely installed by an untrained employee easily while still maintaining a strong and secure connection.

North America locking plug adapter options.

There are many NEMA Twist Locking Plugs available. To provide the most variety of the common configurations our customers use, our stock options are limited to the lower end of the NEMA Twist Lock cords. We stock 15, 20 and 30-Amp configurations of NEMA 5 (125 Volts) and NEMA 6 (250 Volts). We stock many molded connectors and length variations of these products to provide a solution for many specific requirements.

In-House made to order twist-lock cable production.

To service our customers' unique requests, we have a dedicated manufacturing team to facilitate made to order requests. If your project requires a specific length, or configuration power cord but you cannot wait for extended lead times we can build the configuration at our facility. Our team utilizes our extensive stock of molded power cables, and hand-terminates the plug or connectors at the required length. Our state-of-the-art testing and production processes ensure a guaranteed quality product to satisfy your custom requirements.

Choosing the Right NEMA Twist-Lock Cord for Your Application

With 252 configurations in this collection, narrowing your selection comes down to four parameters:

  • Voltage: 125V circuits use L5-series plugs; 250V circuits use L6-series plugs.
  • Amperage: Match the cord's amperage rating to your circuit breaker — 15A (L_-15), 20A (L_-20), or 30A (L_-30). Never exceed the circuit rating.
  • Connector type: The load end may terminate in another locking connector (e.g., L5-20R, L6-30R) or an IEC 60320 connector (C13, C15, C19, C21) for direct connection to servers, PDUs, and rack equipment.
  • Wire gauge: 14 AWG SJT for 15A circuits, 12 AWG SJT for 20A, and 10 AWG SJT for 30A — all available in this collection.

Use the filters on the left to narrow by plug type, connector type, current rating, wire gauge, voltage, length, and certifications (UL, cUL, RoHS, REACH). Not sure which configuration fits your rack or PDU? The Power Cord Selection Calculator and Locking Power Cord Comparison guide can help you decide quickly.

All cords in this collection are manufactured and stocked in the US. In-stock orders placed by 2:30 PM ET ship the same day.

Related

Current rating

15–30 Amps

Voltage rating

125–250 volts

Certifications & compliance

  • UL
  • cUL
  • RoHS
  • 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 a NEMA Twist Lock Power Cord?
A NEMA Twist Lock Cable is a Power cord designed to mate with a Twist Lock Receptacle in North America, that has been designed to the standards produced by the National Electrical Manufacturers Association. These Twist Lock plugs and receptacles will have metal “flanged” pins that will functionally lock into place. To activate the locking mechanism of these power connectors, you must twist the flanges into place, which is why they have come to be called the “Twist Lock”.
What is the Difference between a NEMA 5-15P and a NEMA L5-15P Plug?
Locking Functionality. These plugs are rated for the same voltage and amperage and are both found in North America. They are both designed by NEMA for similar purposes. The only difference which is visibly obvious is the orientation/design of the electrical pins. The L5-15P can be “twist-locked” into place, which is commonly used for high traffic areas or when powering equipment that would have adverse effects if dis-connected from a power source unexpectedly.
What do the numbers mean for the designation of NEMA Plugs?
Voltage and Amperage Classification. Under the NEMA classification, the first number (extends into double digits) will designate the voltage and conductor count. The second number (commonly distinguished from the first with a “-”) is the amperage rating. For example the NEMA 1-15P is rated for 125 Volts, without a ground under “NEMA 1” and is rated for up to 15 Amperes of power. To learn more about these classifications, refer to our comprehensive guide on NEMA Locking Configurations.
What is a twist-lock extension cord and how does it differ from a standard cord?
A twist-lock extension cord uses a NEMA locking plug and connector that rotate roughly 30° after insertion to mechanically lock into the receptacle, preventing accidental disconnection. A standard straight-blade cord relies only on friction. Twist-lock cords are preferred in data centers, industrial facilities, and anywhere vibration, cable weight, or high-availability requirements make an unintentional disconnect unacceptable.
What are twist-lock cord ends, and can I order them separately?
Twist-lock cord ends (also called cord-cap connectors or receptacle ends) are the female locking connectors fitted to the load end of a twist-lock cord set — for example, an L5-20R or L6-30R body. World Cord Sets offers cord sets with a wide range of locking plug and connector combinations. For a custom length or connector pairing not shown in the collection, use the Power Cord Configurator or request an instant quote.
What is the difference between a twist-lock plug and a standard NEMA plug?
A twist-lock plug (designated with an 'L' prefix, e.g., NEMA L5-20P) has curved blades that rotate into a locked position inside a matching receptacle. A standard NEMA plug (e.g., NEMA 5-20P) has straight blades held only by contact friction. Twist-lock designs are required by many data center and industrial standards where a secure, vibration-resistant connection is critical.
What does the NEMA twist-lock designation tell me about a cord?
The NEMA locking designation encodes three key facts:L — locking (twist-lock) designFirst digit(s) — configuration group (e.g., L5 = 2-pole 3-wire 125V; L6 = 2-pole 3-wire 250V)Last two digits — amperage rating (e.g., 15 = 15A, 20 = 20A, 30 = 30A)So an NEMA L6-20P is a locking, 250V, 20A plug. Matching the plug family and amperage to your receptacle and circuit rating is essential for safe operation.