NEMA D motors are totally enclosed self-fan-cooled ones designed and manufactured in accordance with the lastest NEMA standards, suitable for Bean pumping units application with special high slip(5-13%), very high starting torque an very soft mechanical features, because of these features, the equipment is able to be started easily, motor speed can drop to protect the equipment from damaging when fluctuating loads are encountered, in addition the motors are designed for a large margin of safety in temperature rise, durability, quiet operation, reduced vibration, advanced construction, high safety and reliability in service, convenvience for application and maintenance and etc.

Rating
King of motor: squirrel-cage induction motor,NEMA D design;
Design standard: NEMA MG1
Frame No. 213T~449T
Output range: 3-150HP
Synchronous speed: 1200rpm(6 poles,60Hz)
Rated frequency: 60Hz
Rated voltage: 460V
Service factor: 1.15
Protection enclosure: TEFC,IP55
Cooling method: surface cooling(IC411)

Application
Non-hazardous
Ambient temperature: -20~+40 degree C(+55 degrees is available on request)
Altitude: <=1000m(3300feet)
Direction of rotation: Bi-directional
Starting method: direct-on-line starting or star-delta starting