Hi,
This is Abdul. Need to understand the load calculation for 1.5 T on a/c. We are about to install 12 A/C's of 1.5 T how to calculate the total Load, ampere and cable size.

Please let me know

Regards,
Abdul
[email protected]

 

Look at the manufacturer's data for the units. They will list not only full load amps (FLA) but also minimum circuit ampacity (MCA). If using breakers for your short-circuit protection, you may need to use ones rated "HACR" (Heating Air Conditioning, Refrigeration).

 

Abdul... As a start I suggest you refer to the examples given in USA's NEC (National Electric Code) Handbook; also known as NFPA 70.

Regards, Phil Corso