This is a device designed to safely connect a portable generator to a home’s electrical system through an existing circuit breaker panel, specifically one manufactured by Cutler-Hammer (now Eaton). It prevents backfeeding of electricity into the utility grid during a power outage. For example, during a blackout, this device allows homeowners to power essential appliances by safely diverting power from a generator to pre-selected circuits within the house.
The implementation of such a system is critical for preventing electrical hazards. It ensures that the generator’s power is isolated from the utility lines, thereby protecting utility workers from potentially lethal voltage. Furthermore, these devices offer a convenient and code-compliant alternative to extension cords, providing a more permanent and reliable solution for emergency power needs. Historically, the risk of backfeeding during power outages led to the development and increasing adoption of these safety mechanisms.