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10-01-2014 #19
Last Activity: 05-04-2020
2.5mm^2 for the VFD input is excessive. 1mm^2 is adequate...so if you want peace of mind go for 1.5mm^2!
It's a 1.5kW spindle, so anything above that and the VFD will cut out within a few seconds - i.e. too fast for the cable to heat up, so you only need to rate the cable for 1.5kW. 1500/230=6.5 amps, hence 1mm^2 (rated for 10 amps) is plenty for a 1.5kW spindle and just enough for 2.2kW as 2200/230=9.6A.Last edited by Jonathan; 10-01-2014 at 06:20 PM.
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