General Electric - Vertical Hollow Shaft AC Motor WPI 250Hp 1800RPM (5KS445DAJ6089)

This Vertical Hollow Shaft AC Motor is a Weather Protection Type I (WPI) design engineered for demanding vertical pump applications. Delivering 250 horsepower at 1800 RPM, it operates at 460 or 575 volts and 60 Hz. The motor features a cast iron frame, end shields, and conduit box for durability and corrosion resistance. It is equipped with Class H insulation, high-thrust bearings, and a robust bearing protection system. The design meets or exceeds NEMA Premium efficiency standards and is inverter duty rated for variable frequency drive operation. Additional features include a stainless steel nameplate, relubrication fittings, and a service factor of 1.15, ensuring reliable, long-term performance in industrial environments.