[JoanTheSpark]

So you've got 480v line to line? Never heard of that in single phase. (480V 3 phase is common in the US)

In the US, the standard is 120/240V split phase (is what it's typically called. 180 deg.) Service current ratings are quite a bit higher though. My house is fairly typical with a recent service install and it's 200A (48kVA.)

Electricity (Voltage Limits) Amendment Regulation 2017 - Queensland

The standard voltage for the supply, before 27
October 2018, of electricity at low voltage from a
single phase system is ..
(a) between a phase conductor and a neutral
conductor ... 240V;
and
(b) between the phase conductors ... 480V.