The Nidec HD5P4E (model GB84) is a premium efficient 5 HP, 3-phase TEFC electric motor designed for hostile duty applications, delivering 885-900 RPM performance on a NEMA 254T frame with a keyed shaft measuring 1-5/8" diameter x 3-3/4" to 4" length. It operates at 208-230/460V, drawing 15.0/7.5 amps at 60 Hz, with Class F insulation, 1.15 service factor, reversible rotation, rigid base mount, and ball bearings for continuous duty up to 40°C ambient. Key features include cast iron construction, corrosion-resistant paint, stainless steel nameplate, steel fan cover, and inverter compatibility for 20:1 variable torque or 5:1 constant torque, backed by a 1-year warranty.