2000 CAT SR4B Description: 2000 CAT SR4B S#AGE00152, 500kW Standby, 277/480V (Reconnectable to 208V), 3ph, 60Hz, 4 pole, 593 frame, 12-Wire, #18 flywheel, single-bearing, 0 housing, 0.7333 pitch, permanent magnet excitation. Generator end only no engine. Good working condition. ,