For appliances rated over how many wattage can the branch-circuit overcurrent device still serve as the disconnect?

The branch-circuit overcurrent device can serve as the disconnect for appliances rated over 300 watts according to the National Electrical Code (NEC). This requirement ensures that the device can handle appropriate loads while providing overcurrent protection and a means of disconnection for safety and maintenance purposes.

When appliances exceed 300 watts, their potential risks and operational demands increase, necessitating that the overcurrent protection not only safeguards against overloads but also allows for safe disconnection of the power supply. This is crucial for preventing hazards like electrical fires or equipment damage when maintenance is required or during malfunction situations.

Understanding this threshold helps electricians and technicians ensure they adhere to safety regulations and industry standards when installing or servicing electrical appliances.