YKK400-8 Three-phase Asynchronous 250kw Electric Motor

AIMIN ELECTRICS CO., LTD. is one of the leading manufacturers and suppliers of ykk400-8 three-phase asynchronous 250kw electric motor in China. With abundant experience, we are committed to providing high quality customized products with competitive price. We warmly welcome you to buy bulk premium products made in China here and get quotation from our factory.

Brief Introduction

The AIMIN YKK400-8 250kW electric motor is a high-voltage three-phase squirrel cage induction motor tailored for heavy industrial operations, boasting core specifications aligned with rigorous industrial standards. Rated at 250 kW with a rotational speed of 740 rpm and a power factor of 0.75, it operates on 10,000 V high voltage, 50 Hz frequency, and adopts a Y-connection  for stable power input. Its defining feature is the totally enclosed air-to-air cooling system (IC 611), paired with a Class 155 (F) insulation grade and S1 continuous duty rating, ensuring uninterrupted performance even in challenging operational conditions. With an IP54 protection rating and compliance with CE certification, it meets global safety and quality benchmarks.

Engineered for durability and efficiency, this 250kW electric motor excels in structural and performance design. It achieves a rated efficiency of 91.0%, significantly reducing energy consumption and long-term operational costs for users. The motor is fitted with high-performance NU224ECM and 6224/C3 bearings, delivering exceptional load-bearing capacity and extending maintenance intervals to minimize downtime. Constructed to withstand ambient temperatures up to 40°C and altitudes of 1,000 meters, its robust frame and precision-machined components effectively dampen vibration and reduce operational noise. The totally enclosed structure completely isolates internal stator and rotor components from dust, water splashes, and external debris, while the air-to-air cooling system ensures efficient heat dissipation, preventing overheating during prolonged use.

Ideal for a broad spectrum of heavy-duty industrial applications, the YKK400-8 250kW electric motor is a reliable power solution for key equipment such as large centrifugal compressors, industrial axial fans, heavy-duty water pumps, crushers, and conveyors. It is widely deployed in high-demand sectors including mining, cement production, steel manufacturing, petrochemical processing, and power generation-industries where equipment reliability directly impacts production continuity. Its high-voltage design makes it suitable for large-scale industrial power systems, while the IC 611 cooling system adapts seamlessly to dusty, humid, or corrosive workshop environments. Backed by Xi'an AIMIN Motor Co., Ltd.'s professional technical support and after-sales service, this motor ensures minimal unplanned downtime, maximizes production efficiency, and offers outstanding long-term value for both new project installations and old equipment retrofits.

Main Technical Parameters

Why choose AIMIN Brand YKK series of Motor?

The AIMIN YKK series is highly recommended for its totally enclosed air-to-air cooled (IC611) design, which ensures reliable operation in harsh, dusty, or corrosive industrial environments. With high efficiency (up to 91.0%), robust construction, and compliance with global standards (CE, IEC), it delivers stable performance for heavy-duty applications like compressors, fans, and pumps, while reducing long-term operational costs and downtime.

Production Details

Frame

• Box structure frame, easy for maintaining and installation

• Flexible dimensions

• Customizable outlook

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Stator

• 99.9% pure copper winding ensures the output power and efficiency

• Excellent insulation system with 5 more processing flows

• All the windings are fitted in by handwork to ensure all slots are full and avoid any possible winding flaw.

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Rotor

• Aluminum casting rotor with high quality silicon steel rotor core to assure induction efficiency

• Copper bar rotor is available for YKK motor

• Pprecisely machined shafts with good capacity of  toughness

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Testing

• All motors must pass the testing before painting and packaging

• We regularly test existing and new products to ensure quality.

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Package and delivery

• All motors will be packaged well before delivery

• Plastic cover inside, vacuum tin foil outer and then solid wood box

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Applications

YKK  Motor is the widely used in many general industries, such as blowers, pumps, crushers, cutting machines, and many other heavy machines. For more application details, contact us.

Cement

Power Station

Water conservation

Steel

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