The Reliance Controls 30 Amp 125/250-Volt 7,500-Watt 6-Circuit Transfer Switch Kit includes the necessities to make a professional transfer switch installation in a home, office or small business. The transfer switch enables the electrical system of the building to accept the power of a portable generator to run up to 6 single-pole circuits or 4 single-pole circuits and one 20 Amp 2-pole circuit. It allows you to power electrical appliances, devices and lighting during a power outage. - Pre-wired design to install quickly - 30 Amp inlet box mounts outdoors - 20 ft. 30 Amp cord goes from the generator to the inlet box - Transfer switch uses interchangeable circuit breakers. One 2-pole 20 amp and four single pole 15 amp circuit breakers are provided - Runs up to 6 single-pole circuits or 3 double-pole circuits during a power outage - Keeps the generator power isolated from the utility power at all times - cULus listed - Instructional installation video available online - No additional expensive feeder breakers required