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#1
 
02-07-2010, 09:22 PM
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All, I'm building a CNC router and all of the controller components will be in the same box. The components will be: 220A/22.5A VFD(1), 38V/15A stepper power supply, 110/5A PC power supply, and 110/2A monitor power. I got plenty help on how to wire it from the Zone (thanks guys), but now I'm facing a dilemma; circuit breaker sizing. The VFD manual recommends a 30A breaker and I plan to use one of the 110V phases to power the all of the 110V devices. My question is what size should the breaker be? Do I just add the max Amps together and multiply by 0.66? If so, does ((15+2+5) +30) * 0.66 = 44.52A Breaker. I only have a 50A sub panel in my shop........ Thanks  |
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