KVA 535 KW 428 Frequency 60 Speed 1800 Poles 4 Phase 3 Voltage 416 Duty Rating Standby 150/40C Bearing 2 Adaptor SAE 2 Coupling none Name STAMFORD,S4L1S,F,INDUSTRIAL,13 Product S4L1S Manual A055Z165_S4S6_I2_EN.pdf DataSheet A057E424_Rev_A.pdf GA A056N951_Rev_B.pdf Torsional A056N872_Rev_A.pdf Priority 242 Model S4L1S Cores F Type INDUSTRIAL Winding 13 adaptor SAE 2 Coupling none Voltage 416 kva 535.00 kw 428.00 brand STAMFORD Product Link https://stamford-avk.com/alternators/stamford/s4