The 4DSC‑A/D series is a 4″ AC/DC high‑power dual‑use brushless solar pump with stainless steel impellers, NSK bearings, and a stainless steel oil cylinder for excellent corrosion resistance. It supports AC380V / DC520V input, compatible with high‑voltage PV systems or grid power. Power ratings range from 3000W to 7500W, delivering flows of 6–18 m³/h with maximum heads up to 420 m. Outlet sizes are 1.25″ or 2″. Open‑circuit voltage requirement is <900V, and solar panel power must be ≥1.3× pump power. An AC/DC auto‑switching controller is included. Ideally suited for ultra‑deep well lifting, long‑distance water transfer, and large‑scale agricultural irrigation.