WesBell Electronics
Wire and Cable Blog



Posts tagged: welding electrical wire

Welding Cable Pricing and Specifications

We’ve been buying and selling welding cable for over 20 years and learning a lot about it along the way. There are two main types of welding cable and many similar types of flexible single conductor power cables.

Welding cable is manufactured as a single conductor wire only and usually comes in black or red. If you need a different color then most manufacturers will make it with a minimum run quantity. The second type of welding cable is much stronger, more flexible and only comes in the color orange.

It’s most commonly used on welders and power supply applications needing a 600 volt single conductor cable. It’s made with flexible 30 awg copper strands making it much more flexible than THHN electrical wire. It also has a rubber EPDM insulation which is more flexible and durable than THHN as well.

This basic welding cable comes in black or red and has a high temperature rating of 105°C. It’s rated for 600 volts and the amps for each gauge size are listed on our website to help you understand which size you need for your particular application. The sizes range from 6 awg to 500 mcm with each larger size carrying more power than the last.

The 6 awg is the smallest carrying about 75 AMPS and weighing 140 pounds per 1000 feet. THHN wire is a single conductor electrical wire and only weighs 98 pounds per 1000 feet which means the PVC insulation is much lighter than the rubber insulation because they both have the same amount of copper in them. The 500 mcm welding cable carries 695 AMPS and weighs 1960 pounds per 1000 feet. The rest of the awg sizes range in between those giving a wide range of power options.

Welding cable costs more than electrical wire because it has the rubber jacket that can withstand higher impact and a higher temperature rating. It also has more flexible copper strands that are more difficult to manufacture. THHN 6 awg has 19 strands which makes it a stiff conductor in order to push it through conduit much easier. Welding cable 6 awg has 259 strands making it more flexible to move around with the welder and coil up easily when you’re finished.

We cut each size of THHN and welding cable by the foot so that you can buy whatever you need for the job you’re doing. We also offer free shipping on orders over $250 and ship from the tax free state of New Hampshire which should each help you save money on each job.

WesBell Electronics Inc
(800) 334-8400