With that amount of power required...i would say a 3 phase supply would be a better option.
Yes you can split it into 3...1 phase per unit.
Yes you will need to get an electrical contractor...who will need to work out what supply is required...looking at what you have listed above...you gona need to find a person who knows what they are doing...to do the calculation and balance the load.
It would be advisable to fit a 3 phase Eskom meter and 3 private single prepaid meters (from what i am reading on your post)
38000 btu unit is a big A/C unit...the 2 x 12000 inverter should work on a standard 20 amp circuit each.
A word of warning i have just finished doing some work at a holiday home north of Durban...everything had to be replaced due to corrosion...every single socket outlet was faulty...every light fitting had to be replaced...every wire had to be cut back and re terminated...you get the idea.
even if the lights are in sheltered areas...like in under cover parking lots...they have to be corrosion proof.
The A/c units literally rusted off the brackets.
So just a heads up...pay the extra and do it right...otherwise you gona be in for huge maintenance bills.
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