This 6-circuit, 30 Amp Nature's Generator Natures Elite Power Transfer Kit is designed for fast installation (indoors) in a home, office or small business. It is completely pre-wired and enables the electrical system of the building to accept the power of a portable generator to run up to six single-pole circuits and any pair of single-pole circuits can be used as a double-pole circuit. The power transfer kit allows you to power electrical appliances, devices and lighting during a power outage. This transfer switch is completely code compliant and keeps the generator power isolated from the utility power at all times. Circuit breakers are 1 in interchangeable and can be changed to different sizes and brands that are compatible and within the maximum circuit size ratings.