The amp breaker required for a dishwasher typically depends on its electrical power consumption or wattage rating. Most standard residential dishwashers in the United States will require a 15 or 20 amp circuit breaker. Here's how to determine the appropriate amp breaker for your dishwasher:
Check the Dishwasher's Nameplate: The nameplate or rating plate of the dishwasher, usually located on the edge of the dishwasher door or inside the door frame, provides important information about the electrical requirements. Look for the wattage rating or electrical current (amps) specification.
Calculate Electrical Current (Amps): If the nameplate specifies the electrical current in amps, you can use that value directly. For example, if the dishwasher requires 10 amps, you should use at least a 10 amp circuit breaker.
Calculate Wattage: If the nameplate only provides the wattage rating and not the amperage, you can calculate the current (amps) by dividing the wattage by the voltage. In the United States, household appliances typically operate at 120 volts. So, for example, if the dishwasher's wattage rating is 1200 watts, you would divide 1200 watts by 120 volts to get 10 amps. In this case, a 15 amp circuit breaker would be sufficient.
It's essential to use the appropriate circuit breaker to ensure the dishwasher's electrical safety and prevent circuit overloading. If you are unsure about the electrical requirements or are uncomfortable working with electrical systems, it's best to consult a licensed electrician to determine the correct circuit breaker and handle the installation safely.