M763, 250 Hp, 1200 Rpm, 505HP FR, 230/460 V, 3 PH, Dripproof, Vertical Solid Shaft P-Base, 508UTDS16078. Engineering Data Output HP:250 Hp Output KW:187.0 kW Frequency:60 Hz Voltage:460 V Current:300.0 A Speed:1188 rpm Service Factor:1.15 Phase:3 Efficiency:95.8 % Power Factor:81 Duty:Continuous Insulation Class:F Design Code:B KVA Code:G Frame:508 PV Enclosure:Drip Proof Thermal Protection:No Ambient Temperature:40 °C Drive End Bearing Size:6316 Opp Drive End Bearing Size:7319 2 UL:Recognized CSA:Y CE:YIP Code:22 Technical Specifications Electrical Type:Squirrel Cage Induction Run Starting Method:Across The Line Poles:6 Rotation:Reversible Resistance Main:.0175 Ohms Mounting:Round Motor Orientation:Shaft Down Drive End Bearing:Ball Opp Drive End Bearing:Ball Frame Material:Cast Iron Shaft Type:P Overall Length:45.76 in Frame Length:8.00 in Shaft Diameter:2.625 in Shaft Extension:5.00 in Assembly/Box Mounting:F1/F2 CAPABLE