3-Phase Electric Motor 220kW 300Hp

The 3-Phase Electric Motor 220kW 300Hp is a high-efficiency motor line, suitable for industrial equipment systems requiring large capacity and operational stability. Thanks to its ability to generate strong torque and continuous operation in demanding environments, the product helps optimize energy and operational costs for businesses. Let’s explore this motor in more detail with Thanh Thai Motor in the content below!

Overview design of the 3-Phase Electric Motor 220kW 300Hp

Electric motors are designed with a robust structure, well-suited for heavy industrial applications. The housing of the 3-phase electric motor is cast from sturdy cast iron alloy, enhancing load-bearing capacity and supporting efficient heat dissipation during continuous operation. A cooling fan is installed at the rear of the body, helping to maintain a stable temperature for the entire motor.

The motor shaft is made of stainless steel, ensuring oxidation resistance and durability under harsh environmental conditions. The internal winding of the motor uses pure copper core, helping to improve working efficiency and extend product lifespan. In addition, high-end bearing systems are integrated to reduce friction, increase operational smoothness, and limit generated noise.

Internal structure of the 3-Phase Electric Motor 220kW 300Hp

The 3-Phase Electric Motor 220kW 300Hp features an internal structure consisting of key components, ensuring stable and efficient operation in large industrial systems:

• Stator (stationary part): Located on the outer layer of the motor, the stator plays the role of creating a magnetic field by conducting alternating current through a properly arranged copper winding system. The outer housing is usually coated with blue or gray industrial paint to prevent oxidation and enhance the aesthetic appeal of the equipment.
• Rotor (rotating part): Positioned inside the stator, the rotor is designed from layers of technical steel tightly assembled into a cylindrical shape. When the magnetic field acts, the rotor rotates and transmits kinetic energy to the machinery system. This design helps minimize energy loss and enhance mechanical durability during long-term operation.
• Motor housing: Manufactured from high-durability materials, responsible for protecting internal components from environmental impacts such as dust, water, and mechanical collisions. The design of heat dissipation ribs on the housing also helps improve cooling efficiency during operation.
• Bearing: A component that supports the rotating shaft for stable movement, reduces friction, and keeps the rotor balanced during operation. As a result, the motor runs more smoothly and extends its usage lifespan.
• Cooling fan: Installed at the rear of the motor, functioning to create a continuous cooling airflow. As the motor rotates, the fan circulates air through the heat dissipation slots, helping to maintain a stable working temperature and protect the motor from overheating.

How many poles does the 3-Phase Electric Motor 220kW 300Hp have?

According to rotational speed, 3-phase electric motor series are divided into the following 4 types:

3-Phase Electric Motor 220kW 300Hp 2 poles (2,800-3,000 rpm)

Large rotational speed helps the motor achieve high rpm, however the starting torque is relatively low, sturdy construction.

Technical specifications

Code	355L
Shaft diameter	75mm
Key	20
Flange diameter	800mm
Dimensions	1500 * 730mm * 1010mm
Mounting type	Foot mount (B3), Flange mount (B35, B5, B14)
Protection class	IP55
Insulation class	Class F

Applications

• Water supply and fluid treatment systems: Applied in industrial pump stations, water supply and drainage systems, circulation pumps, and water treatment lines in factories and industrial zones.
• High-capacity ventilation equipment: Suitable for operating industrial exhaust fans, workshop cooling fans, air supply fans, and air treatment systems in large-scale production environments.
• Material transportation systems: Used for conveyors transporting cement, minerals, agricultural products, construction materials, and goods in automated production lines.

3-Phase Electric Motor 220kW 300Hp 4 poles (1,400 – 1,500 rpm)

The motor operates with high rotational speed but the starting torque is not large.

Technical specifications

Code	355L
Shaft diameter	95mm
Key	25
Flange diameter	800mm
Dimensions	1530* 730mm * 1010mm
Mounting type	Foot mount (B3), Flange mount (B35, B5, B14)
Protection class	IP55
Insulation class	Class F

Applications:

• Crushers and raw material processing equipment: Providing power for stone crushers, ore crushers, mixers, and material processing equipment requiring large torque.
• Mining and logistics industry: Installed in cargo handling systems, seaport conveyors, transfer warehouses, and transport equipment operating continuously with high loads.

3-Phase Electric Motor 220kW 300Hp 6 poles (900 – 1,000 rpm)

Extremely strong pulling force (torque) right from start-up.

Technical specifications

Code	355L
Shaft diameter	95mm
Key	25
Flange diameter	800mm
Dimensions	1530* 730mm * 1010mm
Mounting type	Foot mount (B3), Flange mount (B35, B5, B14)
Protection class	IP55
Insulation class	Class F

Applications:

• Metallurgical and mechanical factories: Suitable for driving steel rolling mills, presses, metal processing machines, and heavy industrial equipment requiring high stability and durability.
• Agricultural and food processing industry: Operating conveyor systems, mixers, crushers, and automated production lines in large-scale processing plants.
• Seaports and warehousing: Used for loading and unloading equipment, goods transport conveyors, lifting systems, and high-intensity logistics chains.

3-Phase Electric Motor 220kW 300Hp 8 poles (700 – 750 rpm)

The highest pulling force among the 4 types but very slow rotational speed.

Technical specifications

Code	355L
Shaft diameter	95mm
Key	25
Flange diameter	800mm
Dimensions	1530* 730mm * 1010mm
Mounting type	Foot mount (B3), Flange mount (B35, B5, B14)
Protection class	IP55
Insulation class	Class F

Applications:

• Building materials manufacturing industry: Applied for mixers, crushers, conveyors, and feeding systems in cement, brick, stone, and concrete plants, where continuous operation with heavy loads is required.
• Energy and environment industry: Applied in wastewater treatment systems, industrial fans, air blowers, and auxiliary equipment at power plants, industrial zones, and environmental treatment stations.

Thanh Thai Motor’s technical team is always ready to assist customers in choosing suitable equipment through hotline 0909.539.175.

What types of gearboxes can the 3-Phase Electric Motor 220kW 300Hp be coupled with?

The 3-phase 220kw 300hp electric motor is a high-capacity line, capable of combining with various types of reduction gearboxes to meet drive requirements in heavy industry, including:

• Worm gear reduction gearbox: Compatible with large-sized WPS, WPA, WPX, WPO, WPDS, WPDX, WPDO, WPDA series and NMRV size 110, 130 gearboxes depending on load and transmission ratio requirements.
• Heavy-duty industrial gearbox: Can be coupled with R-Series Inline Helical Gearbox, F-Series Parallel Shaft Helical Gearbox, K-Series Helical Bevel Gearbox, and S-Series Helical Worm Gearbox, suitable for continuous operation and high-load systems.

In addition, it can also be combined with:

• Pulley and coupling: Shaft 75mm, 95mm.

• Electromagnetic brake: Electromagnetic brake for 220kW 300Hp.

Guide to connecting 3-phase electric motor

Step 1: Open the motor terminal box

Use a screwdriver or specialized tool to remove the fixing screws on the terminal box cover. After opening the cover, you will observe the terminal posts arranged inside the motor. Typically, a 3-phase electric motor is equipped with 6 terminals with distinct markings for easy wiring.

Step 2: Identify the power terminal positions

Check the wiring diagram included on the terminal box cover or motor body. Power supply terminals are usually marked as U1, V1, and W1, which are the positions used for direct connection to the 3-phase power source.

Step 3: Connect the 3-phase power source to the motor

Prepare three phase wires from the power source and connect them sequentially to terminals U1, V1, W1 according to the technical diagram. After installing terminal lugs to the connection posts, tighten the nuts to ensure stable electrical contact and avoid heat generation during operation.

Notes on wiring

• Carefully check the connections before energizing to ensure wires are securely fixed.
• Do not misconnect power wires to the remaining terminals if not according to the manufacturer’s diagram.
• Ensure the power supply is completely disconnected before performing wiring operations.

Step 4: Complete installation and test operation

After wiring is complete, reinstall the terminal box cover and tighten the fixing screws. Power the motor to check operational capacity and shaft rotation direction.

If the rotation direction is not as required, disconnect the power supply and swap any two of the three phase wires. When re-energized, the motor will rotate in the opposite direction simply and safely.

The simple 3-phase electric motor wiring guide video at Thanh Thai Motor helps customers understand installation methods. With intuitive electric motor tutorial videos, Thanh Thai Motor delivers practical and easy-to-understand knowledge, supporting customers in effective installation, inspection, and operation of electric motors. View more compiled videos at Thanh Thai Motor.

Warranty, shipping and commitment policy at Thanh Thai Motor

Warranty up to 24 months

All electric motor products distributed by Thanh Thai Motor are covered by a genuine warranty for up to 24 months. Customers who purchase electric motors can completely rest assured with a transparent, fast, and professional after-sales policy.

Nationwide Shipping

Thanh Thai Motor supports nationwide shipping for all electric motors sold, ensuring safe and on-time delivery to every province across the country. Whether you are in the North, Central, or South, we are ready to serve you.

European Standard Quality – German Technology

Thanh Thai Motor sells electric motors manufactured with German technology, meeting European quality standards, ensuring durability, high efficiency, and stable operation for a long period – suitable for the strict requirements of industrial electric motors.

Competitive Prices – Attractive Offers for Dealers and Wholesale Customers

We commit to reasonable motor prices, offering the best electric motor products with high discount policies for bulk purchasers and distribution units. The more you buy – the better the profit.

Quality Commitment – Powerful Operation, Power Saving

Thanh Thai Motor sells electric motors wound with 100% copper wire, helping the machine run powerfully, consume less electricity, operate smoothly, and effectively reduce vibration – extending equipment lifespan. When purchasing an electric motor, prioritizing products with 100% copper core will be a wise decision, bringing long-term value.

At Thanh Thai Motor, we provide a full range of products, with various phases and capacities, such as:

• 220V electric motors (or 220V 1-Phase electric motors) are 1-Phase electric motors commonly chosen for many household appliances and light industrial equipment, offering convenience and efficiency.
• 380V electric motors are 3-Phase electric motors using three-phase power, commonly used in heavy industrial applications.

Full CO, CQ Certification Documents

Thanh Thai Motor provides the best quality electric motors. Each imported electric motor product from Thanh Thai Motor comes with a Certificate of Origin (CO) and a Certificate of Quality (CQ), meeting the requirements for large projects, constructions, and strict technical documentation.

Contact for Purchase

Do you need to buy an electric motor or seek advice on choosing an affordable electric motor that suits your needs? Contact Thanh Thai Motor immediately using the methods below:

• WhatsApp: +84966596219
• Email: codienthanhthai@gmail.com