What is the purpose of the circuit breaker on the Kasa Smart Wi-Fi Power Strip?

The Kasa Smart Wi-Fi Power Strip’s built-in, resettable circuit breaks stops the flow of electricity when the circuit becomes overloaded. In other words, when the amount of electricity required to power electronics plugged into the power strip is more than the unit can handle, a circuit breaker prevents the power strip from overheating and causing a potential fire. If the circuit breaker trips, just turn off and unplug all connected devices. Take a look at the electrical rating of all the connected devices. 15 Amps is the maximum load or else the circuit breaker will continue to trip.