3-Phase Inverter Duty Motor 75kW 100Hp

3-Phase Inverter Duty Motor 75kW 100Hp is an advanced electric motor integrated with inverter technology, helping control voltage and frequency effectively. Therefore, both rotational speed and torque are precisely adjusted, delivering excellent operating performance and optimizing power consumption for users.

Overall Design of the 3-Phase Inverter Duty Motor 75kW 100Hp

The inverter duty motor is cast from solid iron, offering effective vibration resistance and load-bearing capacity, ensuring durability during operation. The electrostatic paint layer covering the entire surface helps the motor resist corrosion, minimizing the impact of humidity, dust, and chemical vapors in harsh environments.

In particular, there is an independent forced cooling fan system installed at the rear, generating a stronger airflow than standard motors. As a result, the motor is always optimally cooled, even when operating under heavy load conditions or at low speed ranges for extended periods.

Detailed Structure of the Inverter Duty Motor

The inverter duty motor is a 3-phase electric motor with advanced technical design featuring the following main parts:

• Stator: Wound with pure copper wire, providing good electrical conductivity, reducing losses and heat generation.
• Rotor: Formed by tightly pressed electrical steel laminations, enhancing mechanical durability and electromagnetic efficiency.
• Terminal Box: Divided into two separate compartments, one for the main power supply and one for the forced cooling fan, convenient for wiring and enhancing safety.
• Forced Cooling Fan: Operates independently, providing stable airflow to support motor cooling when running continuously under heavy loads.
• Inverter Circuit: Allows flexible frequency adjustment, ensuring smooth startup.

Classification of the 3-Phase Inverter Duty Motor 75kW 100Hp

The 3-Phase Inverter Duty Motor 75kW 100Hp is manufactured in various versions according to the number of poles:

3-Phase Inverter Duty Motor 75kW 100Hp 2-Pole (2800-3000 rpm)

Possessing high rotational speed, effectively meeting applications requiring large flow rates and fast acceleration capabilities. Combined with an inverter, it helps the motor operate flexibly, start smoothly, and optimize power consumption throughout operation.

Technical Specifications

Model	280S
Shaft Diameter	65mm
Keyway	18
Flange Diameter	550mm
Dimensions	1005mm * 550mm * 680mm
Mounting Type	Foot-mounted (B3), Flange-mounted (B35, B5, B14)
Protection Class	IP55
Insulation Class	Class F

Applications

• Fan & Centrifugal Extraction Systems: Used as boiler fans, industrial boiler fans, or large-scale ventilation systems.
• Industrial Pumps: Operating water supply systems, fire protection pumps, or high-pressure centrifugal pumps.
• Heavy Industry: Applied in processing, mining, and construction production lines.

3-Phase Inverter Duty Motor 75kW 100Hp 4-Pole (1,400 – 1,500 rpm)

A suitable choice for systems requiring a balance between rotational speed and torque. Thanks to inverter control, the motor operates stably, saves electricity, and well meets continuously changing load requirements in industry.

Technical Specifications

Model	280S
Shaft Diameter	75mm
Keyway	20
Flange Diameter	550mm
Dimensions	1005mm * 550mm * 680mm
Mounting Type	Foot-mounted (B3), Flange-mounted (B35, B5, B14)
Protection Class	IP55
Insulation Class	Class F

Applications:

• Water Treatment Systems & Industrial Pumps: Operating water supply pump stations for factories, urban areas, submersible pumps, or large-capacity sludge pumps.
• Heavy Industry & Processing: Driving crushers, mixers, presses. Used in agricultural and aquatic processing lines such as cashew processing machines, pepper grinders, or large-scale aeration machines.
• HVAC & Ventilation Industry: Driving high-capacity centrifugal exhaust fans for high-speed dust extraction, building ventilation, or mining tunnels.

3-Phase Inverter Duty Motor 75kW 100Hp 6-Pole (900 – 1,000 rpm)

Features high torque and stable operation at low speeds, suitable for heavy-load systems operating continuously. Combining with an inverter helps precisely control speed, reduce energy losses, and improve operating efficiency.

Technical Specifications

Model	315S
Shaft Diameter	80mm
Keyway	22
Flange Diameter	660mm
Dimensions	1230mm * 635mm * 845mm
Mounting Type	Foot-mounted (B3), Flange-mounted (B35, B5, B14)
Protection Class	IP55
Insulation Class	Class F

Applications:

• Mining & Manufacturing Industry: Used in stone crushers, metallurgical equipment, and mineral extraction systems.
• Material Production & Agri-Forestry: Operating wire cutters, heavy conveyors, wood presses, industrial rice mills.
• Mechanical Engineering & Machine Manufacturing: Integrated into high-capacity centrifugal fans, ice making machines, and various heavy-duty mechanical processing equipment.

3-Phase Inverter Duty Motor 75kW 100Hp 8-Pole (700 – 750 rpm)

Designed for applications requiring large torque and low rotational speed. Thanks to flexible speed control via inverter, the motor helps operate stably, reduces vibration, and optimizes efficiency for continuously operating heavy-load systems.

Technical Specifications

Model	315M
Shaft Diameter	80mm
Keyway	22
Flange Diameter	660mm
Dimensions	1310mm × 635mm × 845mm
Mounting Type	Foot-mounted (B3), Flange-mounted (B35, B5, B14)
Protection Class	IP55
Insulation Class	Class F

Applications:

• Heavy Material Extraction & Processing Industry: Used in stone crushers, construction material breakers, coal processing, and wood/firewood pressing systems.
• Refrigeration Industry: Applied to operate compressor units, ice making machines, and industrial ice-making systems.
• Mechanical Manufacturing & Processing: Serves machinery requiring strong pulling force and slow speed for shaping and processing materials.

Thanks to its flexible speed adjustment capability, the 3-phase 75kW 100HP inverter duty motor is suitable for many modern production systems, helping optimize performance and reduce operating costs. Contact Thanh Thai Motor via hotline 0909.539.175 for advice on solutions tailored to your practical needs.

What Gearboxes Can the 3-Phase Inverter Duty Motor 75kW 100Hp Be Combined With?

• Heavy-duty gearboxes: K, F, S, R series, Cycloidal Gearbox, NMRV gearbox

In addition, it can be combined with:

• Shaft coupling, pulley: 65mm, 75mm, 80mm

Guide to Wiring a 3-Phase Electric Motor

Step 1: Open the motor terminal box cover

• Use a four-point screwdriver to loosen and open the 4 fixing screws on the terminal box cover (located on top of the motor body). Lift the terminal box cover off to reveal the terminal board inside.

Step 2: Identify the connection terminals and prepare the power supply

• Observing inside the terminal box, you will see the lower terminal row clearly labeled from left to right as: U1, V1, and W1. The copper bridge bars (jumping bars) are currently pre-connected in a Star configuration (connecting the top 3 terminals U2, V2, W2 together).
• Prepare 3 phase wires (live wires) from a 3-phase power supply (the video uses Yellow, Red, Black alligator clips to represent the 3 phases).

Step 3: Proceed with power cord wiring

• Use pliers or specialized tools to secure each of the 3 power cords to the 3 terminals in the bottom row:
  • First power wire – Connect to terminal U1.
  • Second power wire – Connect to terminal V1.
  • Third power wire – Connect to terminal W1.
• Note: Ensure that the cable lugs or joints are tightened securely to avoid looseness causing arcing or voltage drop when the motor runs.

Step 4: Power up and test run (Motor test)

• Check once more to make sure the wires do not touch the housing or each other.
• Turn on the circuit breaker (CB/MCB) to supply 3-phase power to the motor.
• Observe the motor shaft (yellow shaft end): The shaft must rotate evenly, smoothly, without strange noises or severe vibration.

Step 5: Completion

• After testing that the motor operates stably, disconnect the power supply, close the terminal box cover and tighten the 4 fixing screws to protect the terminal box from dust and water.

The 3-Phase Inverter Duty Motor 75kW 100Hp is an effective drive solution for many industrial systems thanks to its flexible speed adjustment capability, energy saving, and stable operation. To better understand the structure, technical specifications, and practical applications of the product, customers can refer to the electric motor video and summary video updated below the article.

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