I assure you those welder ratings are always way off. A 30A double with
10ga wiring will be just fine. We ran our whole garage, (including a 250A
Hobart MIG) with a 10ga underground feeder. Never any light dimming or
voltage drop. I don't see where you got the 10ga/100A thing.

--
Steve Barker



"dlgeis" wrote in message
...

I just bought a Lincoln Square Wave Tig 175 Pro welder.

The wiring/fuse recomendations are 10 ga/100 amp.

I have a 200 amp home service and a 200 amp panel with two empty
breaker slots and two unused 220 v circuits. The unused circuits each
have double 30 amp breakers. My home electrical needs are modest so I
don't see a max capacity problem.

1. Does a 220v circuit with a double 50 amp breaker = 100 amp circuit
or do I need to find a double 100 amp breaker?

2. Do I have to give a modern welder its own box wired directly to a
meter lug to prevent problems with sensitive electrical equipment in my
home or can I get by with just adding it to my existing box.

3. If I need to separate it can I do so by connecting the feed wires to
the same lugs used on the incoming side of my home panel. ie two wires
connected to each lug above the main breaker and then feed to another
small 100 amp panel with its own switch and breaker? Or are the lugs
designed to secure only one wire.

Thanks

Doug




--
dlgeis