3-Phase Electric Motor 0.18kW 0.25Hp

The 3-Phase Electric Motor 0.18kW 0.25Hp is an ultra-small (mini) power motor line, specially designed for light-load applications requiring high precision and extremely limited installation space. With the advantages of consuming almost no significant electricity and operating smoothly, this device is the drive heart of small conveyor systems, dosing pumps, electrical cabinet cooling fans, and precise automation mechanisms.

General Design of the 3-Phase Electric Motor 0.18kW 0.25Hp

The outer casing of the 0.18kW electric motor is cast from aluminum alloy to reduce weight and dissipate heat quickly. The body surface features longitudinal ribs to expand the contact area with the air. The terminal box is located on top of the machine, using rubber gaskets meeting IP55 standards. The outer electrostatic powder coating protects the device surface from industrial corrosive agents.

Internal Structure of the 3-Phase Electric Motor 0.18kW 0.25Hp

The internal structure of this 3-phase electric motor line is manufactured and assembled according to industrial technical standards to maintain stable operating performance.

• Stator: The core is assembled from magnetic technical steel sheets to help reduce eddy current losses. The internal winding uses pure copper, coated with a class F heat-resistant insulating varnish to prevent electrical short circuits.
• Rotor: Cast steel squirrel-cage shaft. This assembly is dynamically balanced to reduce centrifugal force, maintain uniform magnetic gaps, and control mechanical vibration when the shaft rotates at high speed.
• Bearings: Centering ball bearings at both ends of the shaft help reduce physical friction. This detail comes with built-in dust seals and heat-resistant industrial lubricating grease, ensuring smooth and long-lasting rotation.
• Cooling system: Plastic fan blades mounted at the end of the shaft create airflow blowing along the heat dissipation ribs. This fan assembly is protected by a perforated steel cover to shield foreign objects from entering during operation.

What Types of 3-Phase Electric Motors 0.18kW 0.25Hp Are Available?

Although the power is only 0.18kW 0.25Hp, the product still has full 2 speed standards to serve various drive mechanisms:

3-Phase Motor 0.18kW 0.25Hp 2 Poles (2,800 – 3,000 rpm)

Being the highest speed line, it mainly serves the duty of creating airflow or centrifugal scraping rotation.

Specifications:

Code	63M
Shaft diameter	11mm
Keyway	4mm
Flange diameter	140mm
Weight	4.5kg
Dimensions	220 * 130mm * 170mm
Mounting type	Foot mount (B3), Flange mount (B35, B5, B14)
Protection class	IP55
Insulation class	Class F

Applications:

• Heat dissipation exhaust fans for large control electrical cabinets.
• Mini circulating water pumps or small flow solution pumps.
• DIY handheld mechanical grinders, light smoothing and sanding mechanisms.

3-Phase Motor 0.18kW 0.25Hp 4 Poles (1,400 – 1,500 rpm)

Moderate and most common speed, widely applied in electronic component assembly lines.

Specifications:

Code	63M
Shaft diameter	11mm
Keyway	4mm
Flange diameter	140mm
Weight	4.5kg
Dimensions	220 * 130mm * 170mm
Mounting type	Foot mount (B3), Flange mount (B35, B5, B14)
Protection class	IP55
Insulation class	Class F

Applications:

• Mini PVC conveyor drives, electronic component and pharmaceutical conveyors.
• Chemical dosing pumps (precise pump flow adjustment).
• Chicken/duck roasters, family-scale seed roasting machines.
• Small-sized food dough mixers, automatic filling machines.

Which Gearbox Can the 3-Phase Electric Motor 0.18kW 0.25Hp Be Installed With?

Thanks to its ultra-compact size and mini standard shaft (11mm, 14mm), the 0.18kW 0.25Hp motor is extremely easy to assemble with the following Gearbox types:

• Cast iron worm gearbox: Models WPA, WPS, WPX, WPO… (recommended for ultra-small sizes like 40 or 50).
• Aluminum housing worm gearbox: The NMRV series is very popular, recommended to use size 030 or 040 to create an extremely aesthetic, square, and compact machine combination that fits in the palm of your hand.
• Mini helical gearbox: Dedicated hollow shaft and solid shaft mini gearbox lines for light loads.
• Other accessories: Combines well with mini pulleys, small-sized sprockets, or adding a 0.18kW magnetic brake assembly for instantaneous braking.

Instructions for Wiring a 3-Phase Electric Motor

Before proceeding with wiring, you should refer to electric motor videos to clearly understand the structure as well as the position of the terminal posts, helping for more accurate and safer operations.

Step 1: Remove the terminal box cover of the electric motor

Use a suitable screwdriver to remove the 4 fixing bolts on the terminal box cover. When opening the cover, the wiring terminal system will be exposed inside. For common 3-phase motors, this area usually has 6 clearly marked wire ends.

Step 2: Identify the connection posts and 380V power supply

The wire ends in the terminal box are arranged in two rows. The bottom row, labeled U1, V1, W1, is the position used to connect the input power supply for the motor.

Step 3: Connect the 3-phase power supply to U1, V1, W1

Prepare 3 phase wires from the 380V power supply and proceed to connect them respectively to the U1, V1, W1 terminals. It is necessary to ensure correct placement for the motor to operate stably.

Important safety note:

Cable lugs must be tightly fastened to ensure good electrical contact, limiting electrical sparks causing short circuits and fires. Absolutely do not connect the power source to the upper terminal row (U2, V2, W2) as this may damage the motor windings.

Step 4: Close the cover and test run

After completing the wiring, tightly close the terminal box cover and tighten the bolts to protect the device from dust and moisture. Apply power to check operation. If the motor rotates in the reverse direction of desire, simply disconnect the power and swap the positions of two of the three phase wires to reverse the rotation direction.

Performing the correct procedure not only helps the system operate stably but also ensures long-term safety. Electric motor videos from Thanh Thai Motor will be a useful reference source for users in practice.

To learn more about products, quotations, and detailed instructions, you can visit the synthesis videos in the electric motor video category – where full content directly performed by the technical team is provided.

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