KVA 275 KW 220 Frequency 50 Speed 1500 Poles 4 Phase 3 Voltage 400 Duty Rating Marine Continuous Class B 70/50C Bearing 2 Adaptor SAE 0.5 Coupling none Name STAMFORD,S4L1M,F,MARINE,311 Product S4L1M Manual A055Z165_S4S6_I2_EN.pdf DataSheet A058N186_Rev_A.pdf GA A056N443_Rev_A.pdf Torsional A056N872_Rev_A.pdf Priority 240 Model S4L1M Cores F Type MARINE Winding 311 adaptor SAE 0.5 Coupling none Voltage 400 kva 275.00 kw 220.00 brand STAMFORD Product Link https://stamford-avk.com/alternators/stamford/s4