This 4-pack includes Homeline breakers with multiple amp capacities and different load center space requirements. It includes 1 HOM115CP - 15 Amp 1-pole Circuit Breaker,1 HOM120CP - 20 Amp 1-pole Circuit Breaker, 1 HOM230CP - 30 Amp 2-Pole Circuit Breaker, and 1 HOM240CP - 40 Amp 2-Pole Circuit Breaker. These circuit breakers are used for overload and short-circuit protection of your electrical system. This breaker 4-pack is compatible with Square D Homeline load centers and CSED devices with available spaces for two 1-pole breakers and two 2-pole breakers. A total of 6 spaces required for entire offering. Each ANSI-certified and UL-listed unit is rated for 120-Volt/240-Volt ACand 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. Homeline circuit breakers are the best in class. Designed exclusively for the residential and commercial market, Homeline products offer everything you need to distribute electricity throughout your home.