20 Amp Power Cord

Power matters when your equipment relies on a steady, stable connection. A 20 Amp power cord is specifically designed for applications that require more power than a typical household cord can provide. Whether it’s commercial appliances and industrial equipment or specialized machinery and tools, these cords are engineered to perform reliably in rugged settings.

At Americord, quality and durability are at the center of every cord design, giving businesses and equipment manufacturers dependable solutions they can trust.

This collection brings together a range of heavy-duty power cords designed for 20 Amp applications. Each option features durable construction, strong insulation, and the performance needed for repeated use in commercial and industrial settings.

Why Choose a 20 Amp Power Cord?

A 20 Amp power cord is built to handle higher electrical loads than standard cords. This increased capacity makes it the right choice for equipment that draws more power, such as appliances, machinery, and commercial devices.

For example, unlike a 15 Amp cord, a 20 Amp power cable steps up to 12-gauge wire, which has a larger conductor cross-section that allows it to carry more current with less resistance. That matters when you are running a load continuously for hours.

Using the proper cord ensures safe operation while reducing the risk of overheating, voltage drops, and premature wear.

Americord produces the highest quality cord, which is also extremely durable. Each cord in this family is constructed with 12-gauge conductors, making it an ideal 12/3 appliance cord for high usage embodiments and job sites needing a strong, sturdy power connection.

NEMA 5-20P to ROJ Configuration

Every Americord power cord in this collection uses the NEMA 5-20P plug on the supply side. This is a T-blade plug, identifiable by its horizontal prong, which distinguishes it from the standard NEMA 5-15 household plug. It is designed exclusively for 20-Amp-rated outlets and circuits, so you know the connection is properly matched to the load.

On the equipment side, each cord terminates in an ROJ. The outer jacket is stripped back, leaving the individual conductors exposed and ready for direct connection to a terminal block, junction box, or custom wiring harness.

This type of termination is common in commercial appliances, OEM equipment builds, and professional installations where a standard plug-and-socket connection is not appropriate.

Browse the Full Product Lineup

Americord offers 20 different Amp power cables in this category, each built for a specific reach requirement. Every option below is rated for 125V and 20A, uses 12/3 gauge conductors, and ships with a NEMA 5-20P plug on the power source end and a stripped ROJ termination.

Here is a closer look at each one.

3FT NEMA 5-20P to ROJ Heavy Duty Power Cord 12/3 SJTW NA

The 3FT NEMA 5-20P to ROJ Heavy Duty Power Cord 12/3 SJTW NA is the most compact option in the Americord heavy-duty lineup. At three feet, it is purpose-built for close-quarter installations where the power source and equipment sit within arm's reach of each other.

Think panel-mounted equipment, built-in commercial appliances, or any setup where you want minimal cord length to keep the installation clean and organized.

The SJTW jacket gives this cord solid resistance to moisture and mild abrasion, making it a reliable choice for indoor commercial environments. The 12/3 construction handles continuous 20-Amp draw without thermal stress.

The ROJ end comes pre-stripped, so your installers can land the conductors directly on terminal blocks or wiring harnesses without spending extra time on prep. If your installation calls for a short, reliable 12/3 replacement power cord, this three-foot version handles the job cleanly.

6FT NEMA 5-20P to ROJ 6IN Strip 5/8IN Heavy Duty Power Cord 12/3 SJTOW NA

The 6FT NEMA 5-20P to ROJ 6IN Strip 5/8IN Heavy Duty Power Cord 12/3 SJTOW NA covers the most common installation reach for countertop and floor-standing commercial equipment. Six feet gives you room to position gear away from the outlet without creating excess cord that bunches up behind the equipment or under a rack.

The SJTOW jacket on this cord adds an important layer of protection that the standard SJTW doesn’t offer: oil resistance. In automotive shops or other environments where lubricants or petroleum-based substances are present, the SJTOW rating helps keep the jacket intact over time.

The 6IN stripped section with a 5/8IN conductor strip-back gives installers enough exposed conductor to make clean, secure connections on larger terminal blocks. This is a workhorse 20 Amp power cord for demanding day-to-day environments.

7FT NEMA 5-20P to ROJ 6IN Strip 1/2IN Heavy Duty Power Cord 12/3 SJTW NA

The 7FT NEMA 5-20P to ROJ 6IN Strip 1/2IN Heavy Duty Power Cord 12/3 SJTW NA makes a great middle-of-the-road choice. Seven feet is often the ideal length when equipment doesn't sit flush against the wall, and the outlet is slightly offset to either side. It's long enough to avoid unnecessary pulling, yet short enough not to become unwieldy in tight spaces.

Standard commercial indoor environments are well handled by the SJTW jacket of this power cord, including most temperature variations and moisture exposure. The first part of this cable, the ROJ section, is stripped to 1/2IN on each conductor, a perfect gauge for mid-sized terminal connectors and most OEM hard-wire terminations.

This is the go-to choice for equipment techs looking for a reliable 20-Amp power cord that handles any service scenario without the extra length you don't need.

8FT NEMA 5-20P to ROJ 6IN Strip 5/8IN Heavy Duty Power Cord 12/3 SJTW NA

The 8FT NEMA 5-20P to ROJ 6IN Strip 5/8IN Heavy Duty Power Cord 12/3 SJTW NA is the right call when you need extra reach without stepping up to a 10-foot cord. Eight feet handles situations where the outlet is not directly behind the equipment, and the installation path runs along a baseboard, through a cabinet, or around a corner.

The SJTW jacket keeps this cord flexible across temperature ranges while withstanding the wear of a commercial installation environment. The 5/8IN conductor strip-back on the 6IN ROJ end suits larger terminal block connections, screw lugs, and commercial wiring harnesses where a longer exposed conductor seats more securely.

This is a solid choice for OEM builds and field service replacements where you need a dependable 12/3 appliance cord with enough length to work cleanly in a real installation.

9FT NEMA 5-20P to ROJ 6IN Strip 1/4IN Heavy Duty Power Cord 12/3 SJTOW CEE

The 9FT NEMA 5-20P to ROJ 6IN Strip 1/4IN Heavy Duty Power Cord 12/3 SJTOW CEE stands out from the rest of this lineup because of its CEE certification. While the other cords in this collection carry North American ratings, this cord meets both NA and European compliance standards, making it the right choice for OEM manufacturers building equipment that will be sold or operated internationally.

At 9 feet, it provides a generous reach for larger equipment footprints or installations where the circuit panel is farther from the load. The SJTOW jacket provides oil resistance in addition to standard weather protection, and the 1/4IN conductor strip-back works well for smaller terminal openings common in precision equipment wiring.

If your project requires a 20 Amp extension cord or cord> assembly that holds up in both domestic and international commercial settings, this is the cord that covers that need.

10FT NEMA 5-20P to ROJ 2IN Strip 1/4IN Heavy Duty Power Cord 12/3 SJTOW NA

The 10FT NEMA 5-20P to ROJ 2IN Strip 1/4IN Heavy Duty Power Cord 12/3 SJTOW NA is the longest cord in the Americord 20-Amp ROJ lineup. It covers large equipment bays, industrial machinery with deep frames, and any installation where the circuit panel is not close to the load.

If you have been searching for a 20 Amp extension cord nearby but have come up short on the right length and configuration, this cord fills that gap.

The SJTOW jacket makes it oil- and weather-resistant, two qualities that matter on factory floors and in heavy commercial spaces. Its ROJ end features a longer 2IN stripped section, providing greater conductor exposure for wiring through conduit fittings or bulkhead connectors.

The 1/4IN strip-back on each conductor suits compact terminals and precision equipment wiring. For any installation that needs maximum reach, this 10-foot, properly rated 12/3 replacement power cord delivers.

SJTW vs. SJTOW: Which Jacket Do You Need?

You may have noticed that some of the cords in this lineup feature an SJTW jacket, while others use an SJTOW jacket. Here's what you need to know about each, and how it can help you determine which cord is right for your environment.

SJTW stands for Service Junior Thermoplastic Weather-resistant. It is a moisture-resistant, durable cord jacket that stays flexible in cold weather. SJTOW puts an O in the protective coating description. The O represents the word Oil-resistant.

If your installation site involves cooking oils, lubricants, cutting fluids, or any petroleum-based substance, the SJTOW jacket offers an extra layer of protection against jacket degradation.

For an indoor application, such as a retail display cabinet, an SJTW jacketed cord should be fine. However, if you’re running power cords in a commercial kitchen, an automotive shop, or on an industrial floor, the smarter choice is probably SJTOW-coated cords.

Who Uses These Cords and Why

You'll find the NEMA 5-20P to ROJ format pop up in a variety of different industries. Commercial foodservice techs use it to connect and replace power cords for blenders, griddles, and ice machines. Medical equipment installers rely on it for diagnostic devices and lab instruments that require hard-wired 20-Amp connections.

AV and broadcast crews also use these cord assemblies to easily create professional, robust power runs for their staging rigs or production equipment. OEM manufacturers include them in equipment builds that ship with the cord pre-installed and ready for field connection.

Within each of those environments, the absolute requirement is a cord that will consistently carry a full 20 Amp load. It should also cleanly terminate at the equipment end and hold up over the life of the install. That’s what this collection by Americord is designed to do.

Ratings, Certifications, and Safety

All cords in this Americord collection are rated for 125V and 20A service, so they’re compatible with standard North American 20-Amp branch circuits. The 12/3 construction includes the ground conductor required by code for safe use in commercial applications.

SJTW and SJTOW jacket designations come with specific UL ratings indicating that the cord has been tested for resistance to heat, moisture, and flexibility. The 9FT CEE-rated option ensures compliance with European safety requirements, which is important for OEM builds shipped internationally.

For reference, in commercial installation products, cord ratings and installation methods are governed by electrical safety standards set by the National Fire Protection Association (NFPA) 70, the National Electrical Code, in the US, and Americord adheres to these requirements.

The National Electrical Manufacturers Association (NEMA) also publishes the plug and receptacle configuration standards that govern how the NEMA 5-20P connector is built and rated.

Choosing the Right Length

Selecting the right cord length is about more than just reaching the outlet. A cord that's too long creates excess slack that can become a tripping hazard. A cord that is too short will put strain on the terminations and may cause the plug to be angled awkwardly in the wall.

When choosing the right cord;

• Measure the actual route the cable will travel—around corners or through conduit, not just in a straight line.
• Add 6 to 12 inches of extra length when possible to create a clean service loop at the end of the equipment.
• When in doubt, choose the longer length. Too much cord is easy to manage; too little cord is often useless.

Americord offers cord lengths from 3 to 10 feet. The standard installation separation in most commercial applications is within that range.