Eaton BR Main Breaker Loadcenter, No Feed-Thru Lugs, Main Circuit Breaker, 100 A, C1R, Aluminum, Cover Included, Nema 3R, Metallic, 10 Kaic, BR, 24 Circuits, 12 Spaces, Four-Wire, Three-Phase, #4-1/0 Awg Cu/Al, Type BR 1-Inch Breakers, 208 Y/120, 240 V