3-Phase Electric Motor 280kW 380Hp

The 3-Phase Electric Motor 280kW 380Hp is a large-capacity motor line specialized for industrial machinery systems requiring high efficiency and continuous operation. The product delivers powerful pulling force, excellent load-bearing capacity, and outstanding durability. Thanks to optimal design and premium materials, this device becomes an ideal choice in modern manufacturing plants where stability and long-term efficiency are needed. Let us learn more about this powerful motor model with Thanh Thai Motor!

General Design of the 3-Phase Electric Motor 280kW 380Hp

The 3-phase electric motor (3-phase electric motor) is built with a sturdy structure, suitable for operation in heavy industrial environments and demanding operating conditions. The housing of the electric motor is usually cast from high-quality cast iron or alloy, helping to increase load-bearing capacity, impact resistance, and extend equipment lifespan.

The exterior is coated with a corrosion-resistant electrostatic paint layer, maintaining color durability and protecting the motor from the effects of weather or chemicals. The rear cooling fan system helps maintain a stable temperature during continuous operation. The motor shaft is made of high-precision stainless steel, ensuring stable transmission and minimizing vibration.

The entire winding in the motor is wound with 100% pure copper wire, providing good power transmission efficiency, limiting energy loss, and increasing equipment durability. This design helps the motor operate powerfully and stably, suitable for machinery systems requiring large capacity.

Internal Structure of the 3-Phase Electric Motor 280kW 380Hp

The 3-Phase Electric Motor 280kW 380Hp is designed with two main internal parts, playing a pivotal role in maintaining stable and durable operating performance, well-responding to the requirements of large-scale industrial systems.

• Stator: The stationary part of the electric motor, consisting of electrical engineering steel core and winding system. When energized, the stator creates a rotating magnetic field to transmit energy to the rotor.
• Rotor: Installed on the motor shaft and rotates inside the stator. The rotor receives the electromagnetic field effect, thereby generating torque for the transmission process.
• Motor Housing: Plays a role in protecting internal components from external environmental impacts such as dust, water, and impact. The housing design also supports effective heat dissipation when the motor operates.
• Bearings: Details that support and position the rotating shaft, reduce friction during operation, and enhance stability and lifespan for the motor.
• Cooling Fan: Mounted on the rotor shaft, tasked with creating airflow circulating through cooling ribs, helping maintain stable temperature and protecting the motor from overheating.

How Many Poles Does the 3-Phase Electric Motor 280kW 380Hp Have?

According to the rotational speed, the 3-Phase Electric Motor 280kW 380Hp line is divided into the following 4 types:

3-Phase 280kW 380Hp Electric Motor 2 Poles (2,800 – 3,000 rpm)

The high rotational speed helps the motor achieve high rpm, however, the starting torque is relatively low, so the heavy load-pulling capacity right from the start is not truly prominent.

Technical Specifications

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

Applications

• High-capacity pump systems: Suitable for large-scale domestic water pump assemblies, booster pumps, agricultural irrigation pumps, drainage pumps, and liquid circulation systems in industrial zones.
• Large-scale industrial fan systems: Used to drive cooling fans, smoke extraction fans, air supply fans, and ventilation systems serving workshops, production areas, and industrial furnaces.
• Industrial conveyor belt lines: Suitable for transporting raw materials, coal, ore, sand and stone, and large volumes of goods in manufacturing plants, warehouses, and logistics centers.

3-Phase 280kW 380Hp Electric Motor 4 Poles (1,400 – 1,500 rpm)

The motor operates with high rpm, but the torque at the starting stage is not large, so the direct load-bearing capacity is lower than slow-speed motor lines.

Technical Specifications

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

Applications:

• Crushers and material processing equipment: Provides driving power for stone crushing systems, mineral crushing, raw material crushing in the cement, mining, and construction materials industries.
• Heavy load lifting equipment: Applied in overhead cranes, winches, hoisting belts, and goods transportation systems requiring continuous and stable working capabilities.

3-Phase 280kW 380Hp Electric Motor 6 Poles (900 – 1,000 rpm)

Extremely powerful pulling force (torque) right from start. Capable of withstanding heavy loads and harsh working environments.

Technical Specifications

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

Applications:

• Mining and mineral processing industry: Used to drive conveyor belts, crushers, screens, and heavy mechanical equipment requiring stable operation in harsh environments.
• Chemical and fertilizer plants: Suitable for mixing systems, air compressors, chemical pumps, and continuous production lines requiring high durability and efficiency.
• Paper and wood processing industry: Operates cutting, pressing, crushing equipment and conveyor systems in paper manufacturing plants, plywood, and forest product processing.

3-Phase 280kW 380Hp Electric Motor 8 Poles (700 – 750 rpm)

The largest pulling force among the 4 types but very slow rotational speed. Usually has a much larger and heavier machine body size compared to other lines of the same capacity 5Hp.

Technical Specifications

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

Applications:

• Industrial water supply and drainage systems: Applied in clean water pumping stations, wastewater treatment, and large-scale technical infrastructure projects requiring powerful driving sources.
• Seaports and logistics centers: Driving equipment for lifting equipment, goods transport conveyor belts, and mechanical systems operating continuously with high intensity.

To choose the right motor and gearbox for your application, please contact 0909.539.175 for prompt support from the professional team

Which Gearboxes Can the 3-Phase Electric Motor 280kW 380Hp Be Combined With?

The 3-phase electric motor 280kw 380hp can be combined with various types of gearboxes such as:

• Worm Gearbox: WPS, WPX, WPO, WPA, WPDS, WPDX, WPD0, WPDA size 120 and NMRV 110, 130 gearboxes.
• Heavy Duty Gearbox: R-series inline helical gearbox, S-series helical worm gearbox, F-series parallel shaft helical gearbox.

In addition, it can also be combined with:

• Pulleys and couplings: Shaft 75mm, 95mm.
• Brake: 280kW 380Hp electromagnetic brake.

Instructions for connecting 3-phase electric motor

Step 1: Remove the terminal box cover of the motor

Use a suitable screwdriver or wrench to open the wiring box cover on the motor. After removing the cover, you will see the terminal posts arranged inside. Most 3-phase electric motors are designed with 6 outgoing wire ends, accompanied by symbols to help identify and connect easily

.Step 2: Check the symbols of the wire ends

Observe the wiring diagram pasted on the terminal box cover or motor body. The wire ends are usually marked U1, V1, W1 and U2, V2, W2. Determining the correct position of the terminals makes the electrical connection process more accurate and safer

.Step 3: Connect the power source to the motor

Bring the three phase wires from the 3-phase power source into the corresponding terminal posts according to the technical diagram. After installing the cable lugs onto the wiring terminals, proceed to tighten the fixing nuts to ensure good electrical contact, limit vibration, and increase safety during operation.

Technical Notes:

• Check the tightness of the connectors carefully before energizing.
• Do not misconnect the power wires to the remaining terminals of the winding if it does not match the wiring diagram.
• Ensure the power supply is completely disconnected during operation to avoid explosion hazards.

The simple 3-phase electric motor wiring guide video instructs customers on accurate wiring operations, not only ensuring the motor operates stably but also limiting electrical risks and maintenance costs. With detailed electric motor video systems, Thanh Thai Motor provides visual materials to help customers easily perform motor installation and operation tasks in practice. Watch more through the synthesized 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