Key Specifications (Revised) Manufacturer: AIRMAN (Hokuetsu Industries Co., Ltd.) Model: SDG400S Rated Output: 400 kVA (≈330 kW standby) Voltage Package: 600 V (high-voltage output package) Frequency: 60 Hz Phase: 3-Phase Power Factor: 0.8 Engine Type: Diesel Cooling: Liquid-cooled Enclosure: Sound-attenuated Mounting: Heavy-duty trailer-mounted unit