KVA 53 KW 42.4 Frequency 50 Speed 1500 Poles 4 Phase 3 Voltage 660 Duty Rating Marine Continuous Class F 90/50C Bearing 1 Adaptor SAE 4 Coupling 8 Name STAMFORD,UC22,F,MARINE,25 Product UC22 Manual A040J848_UC_EN.pdf DataSheet UCM224F-25-TD-EN_Rev_A.pdf GA 23-2001_Outline_DS23-2001_Rev_H.pdf Torsional L15-12630_Rev_A.pdf Priority 270 Model UC22 Cores F Type MARINE Winding 25 adaptor SAE 4 Coupling 8 Voltage 660 kva 53.00 kw 42.40 brand STAMFORD Product Link https://stamford-avk.com/alternators/stamford/uc22