During the installation of my AC last week, I asked the technician which MCB is used for AC? He said, Type C MCB is advised for an AC. It should have a rating of 16A or 20A for a 1.5-ton unit. As ACs draw more current when they first start up, typically 1.5 times their regular operating current, the Type C MCB is perfect. He also shared the tips on choosing a proper MCB.
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Which MCB to Use for Air Conditioners?
The AC technician informed me that understanding the air conditioner’s load capability is crucial before selecting an MCB or Miniature Circuit Breaker. A large MCB might not offer the required protection, whereas a small MCB might trip frequently from overload.
He said Type C MCBs are utilised in household air conditioners for the following reasons.
They can manage the higher starting currents of the compressors and motors present in these machines.
Also, it won’t trip during regular operation.
In circuits that manage inductive loads, such as transformers and motors, Type C MCB protects against overcurrent scenarios.
For effective and secure operation, it is essential to ensure the MCB is appropriately rated to manage both the initial surge and the ongoing running load.
I hope you found this helpful.
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Choosing the right MCB is important to ensure safety and prevent any sort of electrical hazards. I also wasn’t aware of which MCB is used for AC. I asked this once to the technician who came to repair our old AC. There were some electrical issues which caused our AC to trip frequently. The expert told me the importance of using the right MCB.
Which MCB to Use for Air Conditioners?
I learned that the best MCB for AC is usually the Type C MCB with a rating of 16 amps. The technician told me this type of MCB is ideal because ACs usually draw higher current during startup, sometimes around 1.5 times their normal operating current.
Here are some reasons Type C MCB is perfect for ACs.
They will protect ACs against overloads and short circuits.
It also largely depends on the load capacity of your AC unit. If you have a 1.5 ton AC like us, you will need a circuit that can handle between 16A to 20A, depending on the voltage and current.
Type C MCB also prevents unnecessary tripping.
He told me these types of MCBs are designed specifically for higher starting currents, such as motors and compressors.
So, it is why Type C MCB is recommended for air conditioners. The technician also told me a wrong MCB can lead to frequent power interruptions. The lack of protection might also put your AC unit at risk of damage because of overload.
I hope this gives you some idea.
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Which MCB is Used for AC?
Akshay
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4 months
2025-02-11T08:38:17+00:00 2025-02-11T08:38:18+00:00Comment
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