How much ampere MCB required for 1.5 ton AC?

During the installation of my 1.5 ton AC, I came to know how much ampere MCB required for 1.5 ton AC. Usually I learned it requires 16 Amp MCB, but the technician said a 20 Amp MCB is best to handle the electrical load. To determine the exact current in amps, you can calculate it by dividing the power in watts by the voltage in volts. I have shared the complete details the AC technician informed me.

How much Ampere MCB Required for 1.5 Ton Inverter AC?

For a 1.5-ton air conditioner, as I mentioned, a 20-Amp circuit breaker is enough to handle its electrical load. The technician mentioned it's better to go with it to handle the initial surge of electricity when the AC is turned on, as it requires more power at the start.

• If you want extra safety or more protection, you can choose a 32-amp circuit breaker. 

• It’s a smart idea to talk to the professional to make sure the circuit breaker is the right size for your AC and home wiring, ensuring everything works safely.

• For a 1.5-ton AC, a 20A or 25A circuit breaker is recommended. 

I hope this helps you.

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An MCB, or Miniature Circuit Breaker, is an electrical device designed to protect electrical circuits from overloads and short circuits by automatically interrupting the flow of electricity when a fault is detected. It is hard to say which MCB is best for 1.5 ton AC without consulting with an expert electrician. We had installed an AC of 1.5 ton last year and that is when we learned about these aspects. 

How much ampere switch required for 1.5 ton ac?

To determine the amperage rating for a 1.5-ton air conditioner, calculate the current draw using the formula: Current (Amps) = Power (Watts) / Voltage (Volts). A typical 1.5-ton AC unit has a cooling capacity of around 4,500 watts and operates at 240 volts. 

So, 4,500W / 240V equals 18.75 Amps. To ensure safety and accommodate startup surges, a 20-ampere switch or circuit breaker is recommended for a 1.5-ton AC unit.

I hope this clarifies what AMP MCB required for 1.5 ton AC. You can also refer to this chart to decide your capacity, current in AMP and breaker size:

If you feel confused, ask an expert electrician to help you out.

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Hi there,

I want to share the definition of MCB before telling you about how much ampere MCB required for 1.5 ton AC. Do you wonder what will happen to circuit breakers if they are not installed properly? The devices will start burning. To avoid this miniature circuit breaker is used. Miniature circuit breaker helps to prevent these type damages. MCB is an automatic switch that provides excessive current flow through the circuit. This circuit breaker can be closed without manual replacement. If MCB is in a fuse, and it has been operated it should be replaced or rewired depending on the type of MCB. Therefore, this fuse is also known as a sacrificial fuse. This is the main reason why MCBs are used as an alternative to fuse.

Normally, MCBs for domestic installations  are usually rated at 6000 amps which allows them to over load the current. So, it is very important for us to learn how much ampere MCB required for 1.5 ton inverter AC. I will share a chart with you which will help you clear the doubts.

I hope you understand how much ampere MCB required for 1.5 ton AC.

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