The VFD will only draw what it needs to drive the motor. The Leeson 192070 2HP D90 is rated at (220V 3ph) 6.0A full load and 6.8A Service Factor. Even if you double that to 12.0A to account for the 1ph conversion + inefficiencies, you will still be at the safe limit for continuous current draw of 20A breaker + 12AWG. I thought about this when I decided on the 3HP VFD + 2HP motor. It was very tempting to go 5HP VFD + 3HP motor, but I just had to realistic about my cutting rate requirements.
I haven't set up my ZAY7045 yet. I did briefly hook up the VFD and motor soon after I received them to test for DOA. I did this off of my garage's 20A 220V circuit for the air compressor with no problem. At next to no load, of course. Because I have a Sieg X3 ready to use, I will take my time to set up the 45. Buidling the shop will come first. The GE Workshop load center I bought for it has 12 positions and can easily handle 3 (or more) 2-pole 220V breakers, so I can always plan ahead for upgrades. |