How do I add a 240V receptacle for a Lincoln Electric MIG-PAK15 welder a)in the garage or b)an outside wall?

Question

The ops book specifies a 50A 250V NEMA 6-50P power cord plug and a 40A input fuse at rated 20A output (What does this mean?) using cu 75C 8AWG wire supply conductors in conduit and 10AWG cu wire in conduit to ground.

Does 40A fuse mean 40A breaker - aren't fuses obsolete?

Is the house supply enough to add a 230V circuit? The meter is a Sangamo K2S 2-200A 240V 1 ph 60Hz

A garage sub-panel is fed from 2 stablok tied 60A breakers in the house FPE panel but the supply is 10AWG. The garage sub-panel is about 20m from the house panel. Will10AWG in the garage support a new 8AWG circuit to a receptacle in the garage for occasional welder use?

Or, does Canada Code allow a new 8 AWG circuit from the house panel to a covered exterior receptacle which can be screwed/locked closed after welder use and further isolated by switching off its breaker indoors?

Which exterior receptacle box, s***w/lock cover and receptacle and what amp breaker do I use if in

a) garage panel or

b) house panel?

Thx

Answer 1

when it comes to electrical, HVAC and plumbing, hire a certified pro to install it...

Answer 2

Man, this question made me dizzy just reading it. I didn't catch the Canada part until the third go-round.

If the welder hand book specs a NEMA 6-50P, that’s what you use.

I would not down-size the equipment grounding conductor, although #10 works for forty Amps. I would also use THHN insulation on the wiring (giving it 90° C rating).

If the book says use fuses (you'll need 2, along with a fused disconnect box - rated 3R if you install it outdoors), then use fuses. It will also tell you if they need to be time-delay fuses, or standard. If it says you may use circuit breakers or fuses, I'd still use the fuses - they are anything BUT obsolete, and they are fail-safe, as they don't have mechanical defects.

Don't use a breaker for switching unless it is marked "for use as a switch" or the equivalent.

Nothing but the enclosure should change whether inside or out.

All of these answers are based on US Codes and Standards; check the Canadian Code to be certain. Also, any listing Mark on the welder, or any other equipment, device, fitting, conduit, or wiring should state that it is listed or approved for use in Canada (I don't know if CSA lists, certifies, or approves). Any Mark other than CSA should have the word "Canada" or the letter "C" with it.

Keep an eye on the FPE Panel, also.

Answer 3

wow! how many questions did you get in there?

it's just a welder, you are not hooking up a nuclear reactor.

you need a 50a double pole breaker, and 10g wire.

if you run it to an outside outlet, it needs to be GFCI and water tight.