I've googled this and now I'm just confused by conflicting answers so...
If a 300amp inverter mig runs off a 16amp 240v supply what KVA generator do I need to run it with out having nuisance breaker trips every minute?
I’ve not known of a 300 amp mig to run off a 230/16 unless your using it at the lower end. I’m not surprised it’s tripping.
Big gen set required to run that in its prime settings.
MIGMAKER 330-1 - 230V ideal for so many jobs from the thinnest car panel up to heavy plate, perfect for steel fabrication, general maintenance & medium to heavy duty agricultural welding. Our most popular large single phase machine! From March 2017 now with 20A min setting!
RRP £1050+VAT
Supply Voltage 230V
Welding Range (amps) 20-330
Duty cycle -35% @ 330 amps
Duty cycle -60% @ 250 amps
Voltage Steps 16
Mig wire range 0.6-1.2mm
Size app (ex rear wheels) 350Wx720Lx605H
Weight approx 80kg
Input fuse (slow) 32A*
Min generator size* 6.8KVA
* Note the input fuse size on single phase models is a result of our calculations & tests, it is possible to use any of these models on a lower fuse size at lower welding power. We recomend always using a 'D' type circuit breaker to avoid intermittant tripping & in some instances you may experience intermittant tripping if using close to maximum settings. *The min KVA rating quoted is for up to 3/4 power output, to achieve max output we suggest increase KVA by 40%.
So you are looking at a generator about 6.8kVA + 40% = 9.5 - 10 kVA