If you have installed a 1.5 ton AC, the average stabilizer capacity is 4 Kva. An Inverter Stabilizer with this much capacity is enough to power a 1.5 ton AC. It is recommended to buy the finest copper stabilizer for a 1.5 and 2 ton AC. It works as the efficient booster stabilizer for an Inverter AC with a capacity of up to 1.5 tons. The output from this stabilizer which is then transformed to the AC’s would be more precise.