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MS Series



Standard MS motors are three phase totally enclosed fan cooled(TEFC) aluminium induction motor with IEC frame size from 56 to 132. The efficency of MS motors reach the IE1 standard.
Aside from the general purpose applications in machines similiar to the WY series, MS motors can particularly be used in areas which has a weight limit due to the lighter aluminium frames.

Item Standard Specifications
Type of Motor Totally-enclosed fan-cooled squirrel cage aluminium induction motor
Design standards IEC 60034-1
Voltage and Frequency Standard stock avaliable are:
220-240/380-415V/50Hz for 2.2 KW & below
380-415/660-720V/50Hz for 3KW & above
other voltages such as 200V, 346V, 440V, 460V & 60Hz can be supplied on request
Power Conditions ± 5% of rated voltage and ± 1% frequency
± 1% phase unbalance
Time Duty Continous S1, MCR (S.F:1.0)
Cooling Method self external fan, surface cooling (IC 411)
Method of Starting Full voltage direct on line starting or star-delta starting
Mounting Horizontal foot mounting, flange mounting: B3. B5. B14, B35, V1
Insulation class & Temperate Rise Adopting class F insulation and checking permissible limits of temperature rise against that of class B to improve the insulation reliability
Rotor Winding Squirrel cage, aluminium conductor with end-ring and wafter blades integrally cast
Environmental Conditions Place: Non-hazardous, shaded
Ambient temperature: -20°C to 40°C
Relative humidity: Less than 90% RH(non-condesation)
Altitude: Up to 1,000 metres above sea level
Drive Method Belt service (Note: Frame Size 225 and above is for coupling drive)
Direction of Rotation Standard motors are suitable for operation in either direction of rotation. Direction of rotation of motor can be reversed by inerchanging any two of the power lines
Test Procedure IEC and full voltage measuring starting operation
Fan Cover Pressed steel
Shaft Carbon Steel, round shaft with key
Bearing Grease pre-packed shielded ball bearing
Lubrication Lithium-base grease (Shell Alvania R3)
Painting Phenolic rust-proof base plus lacquer surface finish. Painting in blue
Nameplate Aluminium
Ground Terminal NE set inside the terminal box