YJTKK4003-4 VVVF Three-phase Asynchronous 450 Kw Electric Motor ic666
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YJTKK4003-4 VVVF Three-phase Asynchronous 450 Kw Electric Motor ic666

SIMO YJTKK series are VVVF three-phase asynchronous high voltage motors (YJTKK4003-4 450 kw electric motor as model) equipped with air-water cooling system. Featuring wide speed range, low vibration and noise, high efficiency and reliable operation, they perfectly match various frequency converters. Designed with squirrel-cage rotor, IP55 protection and IC666 cooling, these motors suit dynamic load conditions for pumps, fans and compressors. Manufactured strictly in accordance with international standards, they deliver stable performance for heavy-duty industrial applications.
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Description

Technical Parameters

Xi’an Simo Motor Co., Ltd. is one of the leading manufacturers and suppliers of yjtkk4003-4 vvvf three-phase asynchronous 450 kw electric motor ic666 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

 

Manufactured by Xi'an Simo Motor Co., Ltd., the YJTKK series variable frequency three-phase asynchronous motor is a premium heavy-duty drive solution engineered for variable-speed industrial applications. This 450 kw electric motor combines mature electromagnetic design, robust structural construction and reliable cooling solutions, delivering consistent power performance for long-cycle production operations. It is widely deployed to drive large pumps, fans, compressors and processing equipment across metallurgy, chemical, mining and water treatment industries.

 

Built to adapt perfectly to variable frequency drive systems, this 450 kw electric motor stands out with outstanding operational flexibility. It supports a wide frequency adjustment range to accommodate variable working conditions, allowing users to flexibly adjust rotating speed according to actual production demands. Compared with traditional fixed-speed motors, it significantly cuts unnecessary energy waste during partial-load operation and helps enterprises reduce long-term power consumption costs. Equipped with Class F insulation systems, the motor effectively withstands harmonic interference generated by frequency converters, greatly lowering risks of winding aging and breakdown under variable speed working conditions.

 

Reliability and safety are core merits of this 450 kw electric motor. It adopts an efficient air-water cooling layout to maintain stable internal temperature even under continuous heavy loads, avoiding overheating issues during prolonged running. Premium brand bearings are configured to minimize friction vibration and extend service life, cutting downtime and maintenance expenses. The motor strictly follows standardized industrial design and comes with clear operation guidelines to regulate startup procedures, coupling installation and daily operation. It can adapt to complex on-site environments and steadily operate under varying load requirements.

 

Certified with CE and manufactured under strict quality control systems, the YJTKK variable frequency motor achieves high operating efficiency and stable power factor under rated conditions. Its compact and rational mechanical layout simplifies on-site installation and alignment work. Thanks to optimized anti-vibration design, the motor runs smoothly with low noise, creating a better working environment.

 

For global industrial buyers searching for durable, energy-saving and low-maintenance high-power variable speed drives, this high-voltage asynchronous motor is an ideal choice. It balances stable output performance, flexible speed regulation and long service lifespan, bringing tangible economic benefits to continuous production facilities and gaining wide recognition among industrial end users and engineering partners worldwide.

Main Technical Parameters

Frame:

YJTKK4003-4

Power Scope:

450 kW

Stator Voltage:

5250 V

Stator Current: 61.7A

Frequency:

50 Hz

Number of Poles:

4P

Speed

1485 r/min

Cooling Mechod

IC 666

Protection Grade

 IP55

Insulation Class

155

Duty:

S1

Mounting Method

B3


Production Details

 

Frame

  • Box structure frame, easy for maintaining and installation

  • Flexible dimensions

  • Customizable outlook

3 phase asynchronous 450 kw electric motor


variable frequency 450 kw electric motor

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.


Rotor

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

  • Copper bar rotor is available for YJTKK motor

  • Pprecisely machined shafts with good capacity of  toughness

1500 rpm 450 kw electric motor
450 kw electric motor

Testing

  • All motors must pass the testing before painting and packaging

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


Package and delivery

  • All motors will be packaged well before delivery

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

AC variable frequency 450 kw electric motor

 

Applications

YJTKK 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.

 

high voltage 450 kw electric motor

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Steel

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ScreenShot2025-12-25161750103

Type Power(kW) Stator Voltage(V) Stator Current(A) Rated Speed(r/min 50Hz) Eff.% (50Hz)

Power Factor

cosφ (50Hz)

Max. Torque/Rated Torque Theory Weight kg
YJTKK4003-4 450 5250  61.7 1485 93.2 0.86 1.8 3200

 

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