Best Welding Extension Cords – Reviews & Buying Guide in 2022

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Extension cords, being one of the primary requirements for welders, need to be chosen thoughtfully. 

Many of us are mindful that having the power source near a welding machine could be hazardous. 

A good extension cord gives you the right maneuverability and also gives you protection from possible accidents. 

Best Welding Extension Cords

So, to help you with your search for the right welder extension cord, the list below exists! In the search for the best welding extension cord, we spent resources on testing the highly-rated extension cords available in the market.

After inspecting them in terms of the quality of cord material, safety measurements, and other essential factors, we have created the ultimate list of the best welding extension cords available right now. So, let’s have a look! 

Best Welding Extension Cords - Reviews

1. MaxWorks 80703 Heavy Duty Welding Cord


  • Weight: 10 pounds
  • Dimensions: 480 x 1 x 1 inches
  • Voltage: 250 Volts
  • Wattage: 10000 watts
  • Delivers 40 amps at 250 volts
MaxWorks 80703 Heavy Duty

The MaxWorks flexible but solid welding cords are just plain perfect. They are superbly designed to accouche 40 amps at 250V for heavy-duty execution. Nonetheless, the thick welding cable with the greatest insulation will make your work more comfortable.

The cords’ right-angle extension 6-50 NEMA plug and connector are composed to fit on any transportable welders. The aggravated welding cords are around 8 American Wire Gauge and conveys a pleasurable 40 ampere at 250 volts.

Also, the cords can undoubtedly endure industrial applications with their contractor-grade STW jacket. Moreover, the package arrives, including 3-prong plugs with 3-prong sockets and a right-angle cord plug.

Understanding the matter of safety, the manufacturers featured a neon light at the end of the cord. This lamp symbolizes when the cable is live. For insulation, the contractor-grade STW jacket implements excellent fulfillment and continued security.

The MaxWorks welding cords are every welders’ soundest comrade and are necessities for every kind of welding workshop and metal fabrication.

The flexible yet stable MaxWorks welding cords are a steal for welders. This invention enables you to relocate your welder throughout the store and settles in front of your welding material for computed leisure.

Considering its performance and safety precautions, these cords will make all of your dollars worth it.


  • Features a 6-50 NEMA plug and connector that can fit all American welders.
  • Has a molded 50 amp plug that ensures safety.
  • Has contractor-grade STW jacket that makes it suitable for industrial jobs and provides great insulation.
  • Can provide 40amps output at 250 volts.


  • Can becomes very stiff during winter in northern areas.

2. Parkworld Welder 50A Extension Cord


  • Weight: 11.33 pounds
  • Dimensions: 13.3 x 13.2 x 4.2 inches
  • Size: 25 Feet
  • 100% PVC on Jacket
  • 100% copper in conductor 
Parkworld Welder 50A Extension Cord

The long extension Parkworld Welder Cord can perform all types of heavy-duty actions and will last longer than you can even imagine. The imported piece comes in unbelievably five different sizes for the comfort of diverse welders. They perform magically.

They being enlisted and approved by the UL and CUL, guarantee their jacket consisting of 100 percent PVC. Not only that, for heavy-duty performances, it was also ensured that the welding cords include 100 percent copper conductors internally.

The stranded extension wire proved to be 8 American Wire Gauge and holds the power of outputting a current of a maximum of 40 amperes with a power of 10000 Watt.

The Parkworld Welder Cords are fashioned with an electroplated copper terminal to evade exterior oxidation effectively and efficiently.

The various lengths of the cord made it even more suitable for different welders to adapt them. The power cord is updated mostly using the NEMA plugs and repositories fabricated with PVC cable.

The manufacturers successfully built this cord to withstand universally along with any welding equipment. The excellent performance of the cords in any field makes it the appropriate item for welders.

If you need one that provides heavy-duty performances and topmost security, then don’t be late to adopt the Parkworld Welder Cords.


  • Can take up to 40 amps of load.
  • The wire extension is according to the STW 8AWG/3C standards, meaning it is suitable for rough usage and bad weather.
  • 25' long; great for taking your welding outdoors.
  • 220V 50 amp extension for professional welding tasks.


  • Doesn't have UV protection.

3. VEVOR Welder Extension Cord


  • Weight: 13.92 pounds
  • Dimensions: 14.09 x 13.62 x 4.49"
  • Size: 50 Feet
  • Wide Working Temperate Range
  • High compatibility
VEVOR Welder Extension Cord

Vevor Welder Cords are a blessing for every welder to work more comfortably with proper safety. People looking for heavy-duty workings can also adopt these because their performances are mind-blowing.

The intensified welder extension cord is identical to a known welder extension cord and tends to be around 10 American Wire Gauge presenting an applaudable 50 amperes at 250 volts.

The welding machine remains resilient in temperatures considerably within -40 degrees Celsius to 90 degrees Celsius. The cord is architectured by the manufacturers who made the cord harmonious with almost all the welders on the market.

The material is durable and is superior for indoor applications. It is resistant to splash water and also has an STW jacket for providing a more lasting service and higher performance.

The Vevor Welder Cord sanctions you to drive your welder around the workshop and adjacent to your welding material for convenient work. The cord is said to be 50 feet long and is ETL recommended. These prolongation cord has been planned sturdy and composed of the most eminent quality stuff.

The scheme is straightforward to work with and concedes for accessible portability, roll-up, and accommodation. After all, Vevor Welder Cord proves to be a necessity for every welder.


  • Suitable for taking power a long way due to its 50' length.
  • Has splash protection.
  • Can remain flexible even under freezing temperature up to -68 degrees.
  • Made with a 300V SJT cord, it is very flexible even though it misses the quality of the STW cords.


  • Doesn't have STW jacket.

4. RVGUARD Heavy Duty 8 AWG NEMA 6-50 STW Welding Cord


  • Weight: 18.06 pounds
  • Dimensions: 14.4 x 14.3 x 5.2
  • Voltage: 250 Volts
  • Size: 40 Feet
  • 8 AWG x 3C all-copper wires
RVGUARD Heavy Duty 8 AWG NEMA 6-50 STW Welding Cord

The professional extension cord stars exceptional moisture protection, flaccidity, and abrasion. They are recommended not to be used with household plugs and sockets. Usually, the RVGUARD extension cord comes with three different sizes that please diverse welders.

The lofty position of the cord supports comprehensive heavy-duty productions. Installed with an STW jacket, the cords tend to have an 8 American Wire Gauge with a 6-50 NEMA plug.

The transparent glowing terminal repositories of the RVGUARD welder cord visually familiarizes the welder when the cord is switched with the energy origin. The delightful kit and the plastic leash secure the cord elegantly when it is not in performance. It is also quite simple to be stocked in your parking slot. 

The welding cord is designed to be congenial, with the greatest number of welders present in the market. That is why welders do not have to worry about the cord not suitable for their tasks.

The 100 percent copper wired cord is magnificent because of its power indicator function and high-quality materials. Also, the range of lengths made it easier for people to choose the right one for them. 

If you desire to carry out heavy welding's in your workshop, make your working experience more comfortable by installing the RVGUARD Welder Extension Cord.


  • Moisture and abrasion-resistant.
  • Features an STW jacket, making it suitable for rough tasks in the professional welding fields.
  • The power indicator comes in handy since many cords miss this feature.
  • Comes with a plastic strap and a bag for organizing the cord.


  • Can be a few inches off from the original size.

5. Conntek 15 Amp 10 Gauge Outdoor Extension Cords


  • Weight: 6.75 pounds
  • Dimensions: 16 x 5 x 3 inches
  • Plug and Connector: NEMA 5-15
  • Heavy Duty 600 Volt
  • Gauge: 10 AWG, 15 Amps, 125 Volts
Conntek 15 Amp 10 Gauge Outdoor Extension Cords

For safety and lifelong maintenance cables for your welding, the Conntek brand has manufactured a new set of cable wires; the Conntek 15 amp extension wires. 

The Extension Cords come in diverse lengths allowing more welders to adapt these. Conntek cords come with molded plugs to rewire appliances and machines because a molded plug looks more elegant.

It has a 600-volt outdoor jacket STW 10/3 to allow it to perform heavy-duty tasks more effectively. The product has been approved by UL and has been enlisted by CUL as one of the top cord.

The ten gauge cord works fine while working with heaters or AC. There is absolutely no heat coming out from the cord or the outlets of the cord. Whereas, other 14 or 16 gauge cords from other brands will heat up and melt.

The cord is extremely thick, which gives liability to its safety. It is a great extension cord and a pretty flexible one considering the thickness of the cord. 

People looking for welders of the highest ratings should adopt the Conntek Extension Cords. They are popular and most wanted in the market for their high-quality results, flexibility, durability, and insulation.


  • NEMA 5-15 plug is suitable for United States outlets up to 125 Volts.
  • 10 AWG gauge wire, is very thick and durable.
  • Features STW jacket for long-lasting usage and weather resistance feature.
  • Made of 100% copper for excellent flow.


  • Only rated for 15 amps.

 6. US Wire and Cable Extension Cords


  • Weight: 13.2 pounds
  • Dimensions: 1200 x 0.5 x 0.5
  • Size: 100 Feet
  • Oil-Resistant Extension Cords
  • 15 amp, medium flexibility
US Wire and Cable Extension Cords

For so many years now, the US wire and cable have been manufacturing us with such efficient products. The oil-resistant extension cords have stood out for its reliability, quality, and the safety of their customers. These cords are designed to be used in rough conditions providing excellent service.

The cables are surrounded by individually insulated coated outside jack. The solid molded plug ensures its safety for being overheated. It has 15 amp, with medium flexibility.

The extension cords are resistant to abrasion and deterioration. It is used for hard work services with up to 300 volts. It has the thermoplastic coating to use in any weather.

It can be used for charging cars without even getting warm. On a 120 volt circuit, it draws a maximum of 12amps. The cord has exceptional weather build-up conditions; even under 12 degrees, the cord does not get stiff. The connectors are very well made and are quite sturdy. 

It is an overall good cable extension cord. It has higher durability and strong resistance to harsh weather. The cable has been recommended by lots of its users and will also make your life more effortless.


  • Has medium flexibility; isn't stiff like most STW cords.
  • Suitable for using outside.
  • 12/3 gauge makes it a bit thin but gives it flexibility.
  • Double insulation for the conductors.


  • 15 amps capacity only.

Buyers Guide Of Welding Extension Cord

Having the right equipment is crucial when it comes to welding. The welder extension cords play a significant role in welding. That is why you should always be on the lookout for the right kind of welder extension cords.

As you may know, the current market is filled with different types of extension cords, and every manufacturer claims that theirs are the best. If you don’t know how to recognize a good extension cord, you might get disappointed in what you buy. But not to worry because we have listed a few things you need to look into when purchasing welder extension cords.

Voltage Capability

Welding cords are often used in heavy-duty constructions and projects. The equipment needs to be powered by a certain level of electricity, and so the cable must be able to handle that.

That is why the voltage capacity of the welder extension cords matter a lot. If the welder gun doesn’t get the proper input, you won’t be able to weld anything. Also, you have to make sure the cords capacity and welders capacity match properly. If they don’t, then the equipment won’t work properly.

Cords’ Length

The cord’s length depends mainly on your application. If your projects need high energy carrying cords, then go for shorter ones. The longer cords cannot carry a large quantity of current, so they are better for low maintenance projects.

Cords’ Thickness

Cables with a wider diameter can carry more current than cables with a narrow diameter. That is why this factor also depends on your application. Thinner cords can heat up very easily, but they offer better flexibility.  

Additional Factors 

There are some miscellaneous parameters that you should consider. The welder extension cords have certain industry standards they have to meet. They have to be insulated so that they can withstand chemical exposures and stay protected from abrasions. In a workplace like this, accidents can occur unpredictably.

So the cords need to be coated properly with high-grade materials. You should try out UL-listed extension cords. They are top of the line and have less chance of malfunctions.

The cord must provide consistent power transfer. That is why the welder extension cords should be composed of 6 gauge copper cables and conductors. The cord has to be of comfortable length. Otherwise, you will not be able to work effectively, and that is bound to cause accidents.

This combination will ensure peak efficiency in energy transfers. The cords plug and receptacle also have to meet the industry standards. Polarize plugs or 3-pong plugs are suggested for most professionals.

Safety Features

Safety should not be neglected at all at construction sites. The heavy machinery has enough potential to cause serious harm to someone. You should look for cords with maximum durability and reliability.

The cords need to be resistant to most kinds of blunt trauma and have to function even in high and low temperatures. The current bearing capability needs to be high as well. You need to set a proper budget to buy reliable welder extension cords. Ones that you can keep using efficiently for a long time.

Final Words

When it comes to extreme safety and high voltage capacity, all of the cords listed above are suitable for your work. However, if you want us to pick the best one for you, you should go for the MaxWorks welding cord.

The cords’ right-angle extension 6-50 NEMA plug and connector are better than most of the cords you will find today. The contractor-grade STW jacket ensures safety like no other!

If you want more diverse options, Parkworld offers different choices that you can get from!

No matter which cord you choose to buy, make sure you have the essential safety gear needed for all welders—for example, welding pants, welding blankets, etc. Remember to keep yourself and the people near you safe when you are working!

Last Updated on 1 year by Richard Boyer

  • June 28, 2022
Richard Boyer

Richard Boyer has been a professional welder for over 27 years of his life, and now he is a trainer and blogger providing critical information to anyone interested in welding. He is helping out both hobbyists, novice and professional welders to learn newer and better techniques. Read more about me

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