Chint inverter specs

[ggunn]

In the specs for a Chint CPS SCA60KTL-DO/US-480 it says "Max. apparent power (selectable) 60 / 66kVA" and "Max. output current @ 480 Vac 72.2 / 79.4A". I understand that this is because of adjustable power factor, but which current number should I use for OCPD and conductor sizing? My first take is that I should use the higher number to err on the conservative side. What say you?

 

[jaggedben]

Code simply calls for nameple max continuous output current, which I think is the higher number. Unless the lower current is part of a listed power control system, there's no code provision for using it.

 

[ryangittens]

@ggunn I would argue that the nameplate would be based on the selction since it lists both options unless the inverter can change or override the selection automatically based on the loads.

 

[jaggedben]

Unless the selection is part of PCS then the higher one is still the max.

 

[ggunn]

@ggunn I would argue that the nameplate would be based on the selction since it lists both options unless the inverter can change or override the selection automatically based on the loads.

I am not sure I agree with that. I will be using the higher number.