Plug-On Neutral Main Circuit Breaker Loadcenter, 150A, X4, Aluminum, Cover Included, Nema 1, Metallic, 25KAIC, CSR2150, 40 Circuits, Single Pole, 20 Spaces, Two Hots, A Neutral, and A Ground, Single-Phase, Gray, Combination, Nema 1, Type BR 1-Inch Breakers,