Attributes . Eaton Eaton BR main lug loadcenter, 225 A, L1R, Aluminum, NEMA 3R, Metallic, 25 kAIC, BWH, NEMA 3R, 42 Circuits, Twenty-four pole, 42 Spaces, Three-wire, Single-phase, Type BR 1-inch breakers, 120/240V, #1 AWG-300 kcmil Cu/Al . Names