
Firstall QYM-354 320-500kW Three Phase Brushless Marine Alternator. Marine Grade Alternator: Designed for marine use with IP23 protection and wind cooling for emergency, standby, and common units. Wide Power Range: Available in 30-500kW range with 4 poles, 1500rpm speed, and 50Hz frequency. Premium Components: Equipped with C&U/TMB/NSK bearings, Elantas/Isovolta/DuPont insulation, and Axalta three-proof paint. Global Certifications: ISO9001/2015 certified and CE approved for export to Europe and America. Flexible Customization: Offers full, minor, and flexible customization from samples or designs. High Production Capacity: Annual output exceeds 60,000 units across five major alternator series. Advanced R&D Strength: Backed by 88 patents and a team of 200+ professionals including 9 R&D engineers. Strict Quality Control: 100% visual and function inspection with full raw material traceability.