Can somebody point me in the right direction or maybe show me a video or even just explain what are the proper steps for sizing a three phase panel. I am trying to determine how many 32 AMP EV chargers I can put on a panel.
Ugh, that's a stupid section--it imposes a minimum load to use of 7200 VA, which the accompanying panel statement says is based on 30A @ 240V. But many EVSEs are on 208Y/120V systems, like in the OP. So the use of a minimum based on 240V make no sense to me.I think 220.57 of the 2023 NEC might change some of the figures.
The 125% factor from 625.41 does not, as that specifies that it applies to feeders and branch circuits. If the EVSE load is continuous, then it would apply as a continuous use factor to service entrance conductors, but not necessarily other service conductors. If there is just one service OCPD, then it would apply to the service OCPD and thus to the service conductors. But with multiple service OCPD, it is possible to have service conductors not subject to the 125% continuous use factor.I’m kind of confused on whether or not the 125% factor is applied to service conductors?
Out of curiosity, if the name plate on the EV charger said 32A @ 240V, are all EVSE's chargers considered a resistive load? So the amperage would go down to 27.7 amps right?