No, you cannot install one mini-breaker for two household appliances. Each appliance should have its own dedicated circuit breaker to ensure safe operation and prevent overloading the circuit.
A circuit breaker is designed to protect the electrical wiring and prevent overheating by automatically shutting off the power when the current exceeds a safe level. If you were to connect two appliances to a single circuit breaker, the combined current draw of both appliances could exceed the breaker's capacity, leading to the breaker tripping frequently or potentially causing an electrical fire.
To ensure proper electrical safety, it is recommended to have individual circuit breakers for each appliance or group of appliances based on their power requirements. This way, if one appliance experiences a fault or overloads the circuit, it will only affect that specific circuit and not impact other appliances or circuits in your home.