# Calculate How Many Amps On A Circuit Breaker Handle

By | January 8, 2023

Calculating how many amps a circuit breaker can handle is an important step in keeping your home, business, or other environment safe from electrical shocks and fires. Knowing how many amps a circuit breaker can handle helps you know when it’s time to upgrade the circuit breaker and/or add additional circuits to prevent overload.

When calculating how many amps a circuit breaker can handle, the first thing to consider is the type of circuit breaker. Standard residential circuit breakers typically have a maximum amperage rating of 15 or 20 amps. For higher amperage ratings, residential circuit breakers are available in up to 60 amp ratings.

To calculate the maximum amperage a circuit breaker can handle, start by multiplying the number of watts used by the number of volts available, then divide the total by 1000. For example, if you have a 120-volt circuit with 600 watts of power, the calculation is 600x120/1000= 72 amps.

Another factor to consider when calculating the maximum amperage a circuit breaker can handle is the type of appliance or device the circuit breaker will be supplying. Some appliances, such as large refrigerators and air conditioners, may require more amperage than the standard circuits provide. If you're unsure how much amperage an appliance needs, consult its user manual or contact the manufacturer for guidance.

Finally, when calculating how many amps a circuit breaker can handle, make sure to factor in any other devices connected to the same line. As a rule of thumb, never exceed 80% of the rated capacity of the circuit breaker. This is especially important when connecting multiple devices or appliances to a single circuit.

Calculating the maximum amperage a circuit breaker can handle is an important safety measure that can help prevent electrical shocks, fires, and other hazards. By following the steps above, you can determine the amount of amperage your circuit breaker can safely handle. And don’t forget to check the user manual of any appliance or device you plan to connect to the circuit, ensuring that the circuit’s capacity is up to the task.

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