How many Watts can a 30 Amps Breaker Handle? (With Formula to Convert Amps to Watts)

You should have proper knowledge about the wattage that a particular amps breaker can handle. There will be a lot of problems if you can’t handle the circuit load so this article will guide you about how many watts can a 30 amps breaker handle and how to convert amps to watts.

How many watts can a 30 amps breaker handle? 

  • On average a 30 amps breaker with a 120-volt circuit is able to handle 3600 watts of load. 
  • A 30 amps breaker with a 240-volt circuit can handle a 7200-watt rating. 
30 amps breaker
30 amps breaker

The wattage that a 30 amps breaker circuit can handle depends on voltage. You can get to know yourself by a formula that you will read next

How to calculate 30 amps to volts? 

To calculate what volts a circuit need with 30 amps breaker follow the step

you have to divide the wattage by the amperage. For example, 

If it has 30 amps and 3600 watts and to calculate the voltage, divide the wattage by amperage:

Voltage = wattage ÷ amperage

Volt= 3600 ÷ 30 = 120 volt

Similarly, if it has 30 amps and 7200 watts then the voltage is:

Volt = 7200 ÷ 30 = 240 volts. 

Note:

Every electronic device uses ampere, volts, and watts, in its specifications sheet whether it is an air conditioner or a Washing machine these three are considered the basic unit of electricity.

Next, I have explained how to convert amps to watts using a formula. 

Formula to convert amps to watts:

To calculate the wattage of a circuit we need to have the amount of amperage and voltage. 

Watts = amps × volts

To learn the conversion you should know a few calculations. 

How many amps are there in a watt? 

To calculate the watts we need to know the voltage let’s assume the basic voltage of 120V now using the formula:

P = 1 A × 120 V = 120 watts. So here it is clear that at 120V, 1 amp has 120 watts. 

If we considered the voltage of 220V then. 

P = 1 A × 220 V = 220 watts. Here we find that 1 amp has 220 watts at 220 volts. 

30 amps breaker
30 amps breaker

The following table shows full amps to watts conversion:

AmpsWatts (at 120V):Watts (at 220V):
How many watts in 1 amp?120 watts220 watts
How many watts in 2 amps?240 watts440 watts
How many watts in 3 amps?360 watts660 watts
How many watts in 4 amps?480 watts880 watts
How many watts in 5 amps?600 watts1100 wats
How many watts in 6 amps?720 watts1320 watts
How many watts in 7 amps?840 watts1540 watts
How many watts in 8 amps?960 watts1760 watts
How many watts in 9 amps?1080 watts1980 watts
How many watts in 10 amps?1200 watts2200 watts
How many watts in 11 amps?1320 watts2420 watts
How many watts in 12 amps?1440 watts2640 watts
How many watts in 13 amps?1560 watts2860 watts
How many watts in 14 amps?1680 watts3080 watts
How many watts in 15 amps?1800 watts3300 watts
How many watts in 16 amps?1920 watts3520 watts
How many watts in 17 amps?2040 watts3740 watts
How many watts in 18 amps?2160 watts3960 watts
How many watts in 19 amps?2280 watts4180 watts
How many watts in 20 amps?2400 watts4400 watts
How many watts in 25 amps?3000 watts5500 watts
How many watts in 30 amps?3600 watts6600 watts
How many watts in 40 amps?4800 watts8800 watts
How many watts in 50 amps?6000 watts11000 watts
How many watts in 60 amps?7200 watts13200 watts
How many watts in 70 amps?8400 watts15400 watts
How many watts in 80 amps?9600 watts17600 watts
How many watts in 90 amps?10800 watts19800 watts
How many watts in 100 amps?12000 watts22000 watts
How many watts in 150 amps?18000 watts33000 watts
How many watts in 200 amps?24000 watts44000 watts

Let’s understand it by example:

  1. To convert 3 amps to watts that are connected to 120 Volts we can find the answer easily by looking at the chart above and also calculate it by using the formula:

Watts = amps × volts

Watts = 120 × 3 = 360 watts. 

  1. To convert 15 amps to watts which are connected to 120 volts. 

By using the formula, Watts = amps × volts

 Watts = 120 × 15 = 1800 watts. 

  1. To convert 150 amps to watts which are connected to 120 volts. 

By using the formula, Watts = amps × volts

Watts = 150 × 120 = 18000 watts. 

30 amps breaker
30 amps breaker

Conclusion:

In the end, we can say that to convert the amps to the wattage you need to know the voltage, and using the formula you can easily convert it. Also to know how many watts can a 30 amp breaker handle depending upon the voltage, use the formula that it mentioned above. 

FAQ’s

How many things can you connect to a 15 amps breaker? 

Consider 15 amps to 12 amps then use the appliances as many as you want until they pull more than 12 amps. 

What is the cause of overload? 

Overloading of the circuit happens when the total appliance load exceeds.

Rick Costa

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