VEM K21R 225 M4 TWS HW Electric Motor – 45 kW, Vertical Mount, TEFC – 2005

The VEM K21R 225 M4 TWS HW is a powerful squirrel cage induction motor (SCIM) tailored for demanding industrial environments. Manufactured by VEM Motors GmbH in Germany in 2005, this 45 kW motor delivers reliable performance across various voltage and frequency configurations. With a rated speed of approximately 1470 RPM at 50 Hz and up to 1780 RPM at 60 Hz, it is optimized for high-efficiency operations. Its IM V1 vertical flange-mounted design makes it suitable for pump and vertical load applications. Equipped with IC 411 TEFC cooling and a dynamically balanced rotor, the motor ensures stability, durability, and extended operational life.

Specifications:

– Manufacturer: VEM Motors GmbH (Germany)
– Model / Type: K21R 225 M4 TWS HW
– Serial / ID No.: 90506 / 00088 H
– Year of Manufacture: 2005
– Rated Power: 45 kW (~60 HP)
– Rated Speed: ~1470 RPM @ 50 Hz / ~1760–1780 RPM @ 60 Hz
– Efficiency: 0.83 – 0.87
– Voltage / Frequency Options:
  • 400/690V (Δ/Y) @ 50 Hz
  • 380V @ 50 Hz
  • 660V (Y) @ 50 Hz
  • 480V (Δ) @ 60 Hz
  • 460–500V (Δ) @ 60 Hz
– Current: 83 A to 87.4 A (voltage-dependent)
– Power Factor (Cos φ): 0.85 – 0.87
– Cooling Type: IC 411 (Totally Enclosed Fan Cooled)
– Mounting Type: IM V1 (Vertical flange-mounted)
– Rotor Type: Squirrel Cage Induction Motor (SCIM)
– Starting Method: DOL or Star-Delta
– Frame Size: 225M
– Weight: 300 kg
– Bearings: Heavy-duty, grease-lubricated
– Balancing: Dynamically balanced rotor
– Construction Material: Cast iron housing
– Protection Class: Likely IP55
– Insulation Class: Likely Class F or H

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