... suitable for Beam Pumping Units application with special high slip (5 to 13%),very high starting torque and very soft mechanical features. Because of ... ) ,380V, 50HZ is also available 8,Service Factor:1.15 or 1.0.9,Protection Enclosure :TEFC ,IP55.10,Cooling ... Cooling (IC411)11,Mounting arrangement and the relative position of conduit box are follows: NEMA D motor for oilwell pump with high quality