Eaton BRP20B100 Load Center, Indoor, Combination Cover, 20 Space/20 Pole, 100-Amp Main Breaker - Quantity 1 Specially designed for easy installation, Eaton's BR 1-inch load centers house the branch circuit breakers and the wiring required to distribute power to individual circuits. They serve as main breaker for service entrances or as main lug when adding circuits to existing service. The main breaker protects the entire panel and can be used as a service disconnect. The branch breakers protect the wires leading to individual electrical loads such as fixtures and outlets. Amp: 100 Volt: 120/240V 40 circuit 20 spaces 20-phase Indoor NEMA 1 Aluminum bus Interrupt Rating 25 kAIC Plug-on neutral design provides time and labor-savings by eliminating the pigtail Twin neutral design located in wireway, away from circuit breakers, means easier wiring and balancing of the load UL listed. Features Amp: 100 Volt: 120/240V 40 circuit 20 spaces 20-phase USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.