An output of 30 amps offers 3,600 watts (30 amps multiplied by 120 volts). Therefore, the circuit breaker in which the output can satisfy the code and still circulates between a total load of 2880 watts (80% of 3,600 watts) and 4,320 watts (12% of 3,600 watts).

A typical refrigerator pulls 725 watts, depending on the U.S. Department of Energy. Divide this number with 120 volts, which is the power supply, to get the current that the refrigerator pulls in the ampera. A refrigerator 725 watts pulls 725120 6 ampera.

The integrated and portable dishwashers have an operating charge of 13,5 amps, which means that the range of the switch should be greater than the amps required by the unit.

A 3,000-watt generator can use a wide range of household appliances, including heavy appliances such as a refrigerator, electric oven, microwave and television.

One thumb rule is to assign a maximum trace of 1.5 amps to each container, allowing 10 containers in a circuit of 20 amps.