This document provides specifications for a diesel generating set model SP825 powered by a Perkins engine. It can generate 750 kVA of prime power or 825 kVA of standby power. The set includes a 6-cylinder Perkins 4006-23TAG2A diesel engine that produces 638 kW of prime power. It also includes a Leroy Somer LSA49.1M6 or Stamford HCI544F alternator, radiator, filters, electric start motor, control panel and other features. Optional features include soundproofing, an automatic transfer switch and trailer mounting.