Circuit breakers have become a very common and efficient protection tool for electrical circuits and appliances. It limits the flowing current by safely tripping the circuit when the current exceeds a certain level. Now you may ask how many watts can a 15 Amps circuit handle?

For a 120 Volts system a 15 Amps circuit can handle up to 1800 Watts (120 Volts x 15 Amps= 1800 Watts) without tripping the circuit. Here you can see that it is easy to carry out the value by simply multiplying the voltage and the current rating.

As you can see that there is a limit to a circuit. So, there are various reasons behind this. I am going to give you some basic ideas about circuit protection and their characteristics in this article.

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What Is The Basic Principle Of A Circuit Breaker?

A circuit breaker senses the amount of current passing through it and when there is a current flow that exceeds the tripping point, the breaker trips the circuit which results in a stop to the current flow.

The purpose of the circuit breaker is to prevent the overflow of current through a circuit. Thus, it protects the devices from getting burnt due to the excessive current.

There are various types of circuit breaker according to the voltage rating of the circuit. You need to choose a low voltage circuit breaker for your 120 volts home supply.

How Many Watts Can A 15 Amp Circuit Handle?

A 15 Amps circuit can handle up to 1800 Watts for a 120 Volts supply. If the voltage supply is 220 volts, then the circuit can handle up to 3300 Watts.

It is simple to find the power handling capacity. Just multiply the rated voltage with the rated current to determine the rated power of the circuit.

There are some safety issues that is maintained while designing a circuit. That is, a circuit breaker can handle up to 80 percent of its amperage.

So, a 15 Amps breaker can handle about 12 Amps current. This is the practical side of a breaker. In this way, the watt it can handle is 1440 Watts for a 120 Volts supply.

How Many Outlets Can Be Connected In A 15 Amp Circuit?

15 amp circuit breaker

There is a rule- you can connect an outlet for every 1.5 Ampere. And with the 80 percent usage system of a breaker, you can connect 8 outlets to a 15-ampere circuit.

It is always important to measure the extent of your capacity and use wires that can handle the load. Using thinner wires will result in fire and can get melted.

Ultimately, the thing is, no matter how many outlets you connect, you cannot exceed the watt or ampere limit of the circuit. Doing so, the circuit will be tripped.

For example, you cannot connect a micro-oven rated over 2000 watt in a 15 Amp circuit which can only supply an amount of 1800-watt maximum. And when you ask, how many watts can a power strip handle, the fact remains same a above.

And when you’re thinking of setting 30 Amp breaker in a house, you must remember it is the capacity of the wires and the devices you are using that matters.

If the wires are thick enough to handle the current and if you are using devices that consumes current less than 30 Amp, it is okay to use a 30 Amp breaker for your house.

Frequently Asked Questions (FAQs):

1. How Many 100 Watts Bulb Can Be on A 15 Amps Circuit?

You can connect about 14 bulbs of 100 watts rating on a 15 amps circuit. Though the maximum power that a 15 amps circuit should hold is 1800 watt, but as you know you always should take 80 percent of the max amperage for use.

2. Is 15 Amps A Lot of Power?

It is enough for a power strip to connect computer, TV or stereos. But it may not be a lot of power to connect your microwave or other heavy consuming appliances but enough for average usage.

3. Can You Replace A 15 Amps Circuit with A 30 Amps Breaker?

You should never replace a 15 amps circuit with a 30 amps circuit breaker. In a 15 amps circuit the wires used are designed for loads that resembles the circuit. If you use a 30 amps breaker instead, the current flow will increase in the circuit which may exceed the capacity of the wire. Thus, the wire may get melted and catch fire.

4. Can You Run a Refrigerator on A 15 Amps Circuit?

Yes, you can run a refrigerator on a 15 amps circuit. But it is recommended to use it individually for the refrigerator as it draws in a lot of current. So, while using such appliances always use a direct connection instead of connecting through a strip of outlets.

5. Can You Connect a Power Strip to A Surge Protector?

Yes, you can connect a power strip to a surge protector. The amperage of both of these devices should match otherwise it will be meaningless to add a surge protector. Choosing the right surge protector for the power strip is vital.

6. How Many 100 Watts Bulb Can Be on A 15 Amps Circuit?

You can connect about 14 bulbs of 100 watts rating on a 15 amps circuit. Though the maximum power that a 15 amps circuit should hold is 1800 watt, but as you know you always should take 80 percent of the max amperage for use.

Conclusion

If you are going to connect a circuit breaker to your home power supply you have to know the basics. This article is a perfect guide for that.

If you are going to use a 15 ampere circuit breaker for your outlets then always remember, in practical you should connect a maximum of 1440 watts to the circuit.

I have already discussed all the things you need to know about the topic. Finally, I would like to add- always use safety measures, especially in case of the wires you are using which should match the amperage of your circuit.

I hope you found this article helpful, leave your comments for any more enquiries. Good luck.

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