I have 10 amp MCB for my air conditioner of 1.5 ton capacity. When I connect the ac direct it is started running but when connected through stabliser the Mcb Get trip and air conditioner couldn't start.please confirm whether Mcb is required to be upgraded to 20 amp. There is no fault in ac and the stabliser. Please advice the reason of tripping the mcb when connected through the stabliser.
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Answer Posted / k.prakashchandra
The initial in-rush current is about 3-4 times the normal current when there is stabilizer as it consists of a transformer . If you keep the switch of the MCB pressed with your finger for a short time while switching on the AC ,the MCB may not trip. You can go in for a 30A MCB
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