I just bought a new 350 P Aluminum welder, All of the plugs in the shop are 50 amp single phase plugs except for my tig welder that has a big Russel Stoll plug that weighs 20 lbs and is rated for 60 amp 3 phase.

So my question is: If its rated 60 amps 3 phase that means each prong is rated to carry 20 amps each, however I'm only using 2 prongs because I only have single phase so each prong is now carrying 30 amps at maximum capacity.

So that has me thinking that the 50 amp single phase plugs are actually rated higher than the 60 amp 3 phase plug I'm using on the tig welder.

However, if you look at 20 lb Russel stoll aluminum housing plug you would think differently.

So I'm in a situation where I need a 60 amp single phase plug for the new welder, because I use the welder in different areas of the shop I would rather not have it directly wired into a disconnect.

So my question is: If its rated 60 amps 3 phase that means each prong is rated to carry 20 amps each, however I'm only using 2 prongs because I only have single phase so each prong is now carrying 30 amps at maximum capacity.

So that has me thinking that the 50 amp single phase plugs are actually rated higher than the 60 amp 3 phase plug I'm using on the tig welder.

However, if you look at 20 lb Russel stoll aluminum housing plug you would think differently.

So I'm in a situation where I need a 60 amp single phase plug for the new welder, because I use the welder in different areas of the shop I would rather not have it directly wired into a disconnect.

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