The Square D by Schneider Electric Homeline Single-Pole Tandem Circuit Breaker consists of (2) single-pole, 20 Amp breakers in 1 pole space. It is used for overload and short-circuit protection of your electrical system. This breaker is compatible with Homeline load centers and CSED devices. The ANSI-certified and UL-listed unit is rated for 120/240 VAC and 10,000 AIR.Homeline circuit breakers are built with the same Square D brand quality you have come to expect at a price that makes them the best value in their class.Designed exclusively for the residential market, Homeline products offer everything you need to distribute electricity throughout your home.