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It depends on the welder. If it doesn't need 120V you can just put a wire nut on the neutral and wire a 240V plug. If it needs 120/240V you need the 4 prong plug. IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS.If you do this work yourself, always turn off the powerat the breaker box/fuse panel BEFORE you attempt to do any work ANDalways use an electrician's test meter having metal-tipped probes(not a simple proximity voltage indicator)to insure the circuit is, in fact, de-energized.
No, unless you can set it low and can be assured that it wont use more than say 4000watts, the welder might momentarily use more power than what you set it to, it should not wreck the welder i would imagine unless it is a fancy mig welder or something, set the welder low you should be fine but for high end use she should be firing out 8 or 9kw so keep it low if you must.
No. You will no longer be getting the correct voltage to the appliance. It should be replaced before using again.
NO - it is not safe to do that. A GFCI breaker is only a secondary safety device and your primary safety still depends on the earth wire in a 3-pin supply.
yes ofcourse they both are the same
I don't know about an extension cord, but they do sell plug adabters. You can pick them up at any hardware store or even Wal-Mart. They are ussaully grey or orange , and look like the plug end of the extension cord. One end will have the 2 prong, the other side will have the slots to plug in the three prong.
Answer for UK, Europe and countries running a 50 Hz supply service.A four-prong socket on the generator implies that it's a 3-phase generator.The welder appears to be single-phase load working at 240 v 50 A but provided the generator is rated at 415 v 36 kVA that means it can supply 240 v 50 A on each phase, between line and neutral.Given the voltage and power of the generator an electrician should be employed to identify the socket correctly, do the wiring and ensure earthing is correctly completed. Without this the system is dangerous, someone could get electrocuted.
220 volt electricity 3 prong plug.
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It could be a loudspeaker polarised plug.
Yes, provided the outlet has a three element receptacle. The third prong is ground. If you use an adapter that connects three prongs to a two slot outlet there is a shock danger.
Answer for USA, Canada and countries running a 60 Hz supply service.(LIFE SAFETY WARNING! [disclaimer]Electricity is dangerous!You can be injured or killed!Improper installations can cause fire, injury and death!Should you be doing this yourself?)The information given in this question is insufficient to determine how, if at all possible, to connect the generator and welder.It is essential to know the voltage, phase and current ratings of both devices.The requisite information will be noted on nameplates, if not removed or damaged, or in manuals, if available.As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.Before you do any work yourself,on electrical circuits, equipment or appliances,always use a test meter to ensure the circuit is, in fact, de-energized.IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS.