3-Phase Inverter Duty Motor 4kW 5.5Hp

The 3-Phase Inverter Duty Motor 4kW 5.5Hp is an electric motor combined with an inverter, specialized for heavy industries. Thanks to its ability to change speed according to frequency variation, the inverter duty motor can adapt flexibly in various applications. Below, Thanh Thai Motor will provide you with useful information about this 3-Phase Inverter Duty Motor 4kW 5.5Hp!

General Design Overview of the 3-Phase Inverter Duty Motor 4kW 5.5Hp

The 3-Phase Inverter Duty Motor 4kW 5.5Hp is a 3-phase electric motor featuring a sturdy cast iron housing coated with electrostatic paint, providing comprehensive protection for the motor against impacts and deformation.

Additionally, at the rear of the motor, there is a forced cooling fan specifically designed for the inverter duty motor to help cool the entire motor.

Classification of the 3-Phase Inverter Duty Motor 4kW 5.5Hp

Depending on the requirements of the mechanical system, you need to choose the appropriate number of poles to determine the base speed (rotational speed when the inverter runs at 50Hz) and torque. The 3-Phase Inverter Duty Motor 4kW 5.5Hp has diverse classifications regarding the number of electrical poles as follows:

Inverter Duty Motor 4kW 5.5Hp 2-Pole (Speed ~2800 – 3000 rpm)

The 2-pole series has a very fast shaft rotation speed but average pulling force (torque). It is commonly used in systems requiring high rotational speeds.

Specifications

Model	112M
Shaft diameter	28mm
Keyway	8
Flange diameter	250mm
Spigot diameter	180mm
Frequency	5 ~ 50Hz
Dimensions	400mm * 230mm * 300mm
Mounting type	Foot-mounted (B3), Flange-mounted (B35, B5, B14)
Protection class	IP55
Insulation class	Class F

Applications

• Large-capacity water supply pump systems, fire protection pumps.
• Centrifugal exhaust fan arrays, industrial ventilation fans requiring high pressure.
• Grinding machines, cutting machines, wood saws requiring high shaft rotation speed for smooth surfaces.

Inverter Duty Motor 4kW 5.5Hp 6-Pole (Speed ~900 – 1000 rpm)

The 6-pole type has a naturally slow rotation speed, compensated by very strong load-resisting torque (torque), suitable for heavy loads.

Specifications

Model	132M
Shaft diameter	38mm
Keyway	10
Flange diameter	300mm
Spigot diameter	230mm
Frequency	5 ~ 50Hz
Dimensions	510mm * 270mm * 345mm
Mounting type	Foot-mounted (B3), Flange-mounted (B35, B5, B14)
Protection class	IP55
Insulation class	Class F

Applications:

• Chemical mixing tank systems, paint mixing, high viscosity solvents.
• Cargo lifting winches, small-scale cranes.
• Heavy-duty conveyor systems, stone crushers, wood chippers.

Which Gearboxes Can the 3-Phase Inverter Duty Motor 4kW 5.5Hp Be Combined With?

The 4kW inverter motor can be assembled with a variety of the following gearboxes:

• Worm gearbox: NMRV 110 worm gearbox, WPDO, WPDX, WPDS, WPDA series size 135 and WPS, WPA, WPO, WPX series size 120.
• Cycloidal Gearbox.
• Heavy-duty gearbox: K-Series Helical Bevel Gearbox, F-Series Parallel Shaft Helical Gearbox and R-Series Inline Helical Gearbox.

Additionally, this 5.5 horsepower inverter motor can also be combined with:

• Couplings and pulleys: Shafts 28mm, 38mm, 42mm
• Brake: 4kW 5.5Hp brake

Instructions for 3-Phase Motor Wiring and Connection

Connecting an inverter motor requires absolute caution because the machine structure is divided into two separate power assemblies. Proper technical connection not only ensures explosion-proof safety but also helps the motor maximize its capacity.

Step 1: Open the motor terminal box cover

• Use a screwdriver to remove the 4 fixing screws on the terminal box (junction box) cover of the motor.
• This action allows you to access the internal connection terminals.

Step 2: Connect the 380V power supply cables

• The 3-phase motor uses 3 power supply wires for 380V voltage.
• Proceed to connect these 3 power wires one by one to the 3 terminals on the motor: U1, V1, and W1.
• Securely fasten the connection points to ensure electrical safety and the best power transmission capability.

Step 3: Supply power and test run

• After completing the wire connection, proceed to supply 380V power to the motor.
• Observe the operation process to ensure the motor operates stably and smoothly.
• Note: Always follow electrical safety rules when performing connection and testing operations.

The 3-Phase Inverter Duty Motor 4kW 5.5Hp is an important transmission link for all automation lines thanks to its flexible speed control capability, heat-resistant copper windings, and independent fan system helping to eliminate overheating. For a more visual understanding of the structure as well as standard technical wiring methods, please refer to additional detailed instruction videos or follow the electric motor video system of 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