What size cable?

[bigtow30t]

If in doubt get the next size bigger

[USMCPOP]

Here is a good blurb about welding cables, sizes, etc.

http://www.lincolnelectric.com/en-us...ng-cables.aspx

Somewhere between a 4 ga. and a 2 ga. should do.

[gwandless]

It all depends on how long the leads are, and what amperage you are welding at.

They will be 15ft long and the max amperage would 200 amps.
Greg

[walker]

It all depends on how long the leads are, and what amperage you are welding at.

[gwandless]

I have a 200 amp inverter welder and would like to make some longer cables, what size wire should I use?

Thanks,
Greg