I have bought a 1.5 ton window AC from Blue Star recently and used 2.5 sq mm cable to power it through a 16A DP MCB.Can the load be supported in this scenario?
1790 watts at 230 volts is about 8 amps. I would use a power cable rated for at least 10 amps or more. You would need a wire of about 8.3 sq mm, 1.63 mm diameter, or 14 awg to run this load. 2.5 sq mm is the equivalent of 24 awg wire, 0.5 mm diameter, or rated for at 3.5 amps. The unit couldn't draw enough current to run properly with this wire.
I asked this same question 3 times, and didn't get a good answer
You don't mention Kw rating or voltage. You need both these to deermine current. 2.5 sq mm cable will carry 28 amps.
Current of a 1.5 Ton Ac unit is @ 12 Amps. Hence a full size 2.5 sq mm Cu cable should suffice as it is rated for 19 Amps.
