Classification - The generator shall be a 3-phase brushless, self-ventilated, air-cooled synchronous AC-type machine suitable for installation in a building or enclosure, and rated for its continuous duty at load and temperature rises in accordance with NEMA MG 1, Section IV, Part 32 Synchronous Generators. When utilized as standby power, rating shall not exceed conditions per NEMA MG 1, Section IV, Part 32.35. The generator shall be classified as open drip proof (ODP); “drip proof” is obtained when generator is installed in Solar package enclosure. Insulation shall be Class F or better with Class B temperature rise.