Electric Motors Under 3.7kW are low-power motor lines favored by many businesses for their compact design, stable operation, and energy efficiency. With high durability, robust construction, and various voltage and mounting options, electric motors with a capacity of under 3.7kW effectively meet basic drive requirements while helping reduce investment and maintenance costs during operation.

Key Characteristics of Electric Motors Under 3.7kW
Electric motors under 3.7kW are chosen by many businesses due to their compact design, stable performance, and ability to well-meet various applications in both industrial and civil fields.
- Diverse capacity to meet various needs: The capacity range from approximately 0.18kW to 3.7kW is suitable for various machinery with light and medium loads, helping users easily choose according to actual requirements.
- Energy saving during operation: With moderate power and high efficiency, the motor helps reduce electricity consumption, thereby significantly saving operating costs over the long term.
- Compact design, easy installation: Not too large in size and relatively light in weight, making transportation, installation, and replacement convenient, especially in limited spaces.
- Stable and durable operation: The motor is designed to work continuously for many hours with low vibration and noise, contributing to increased equipment lifespan and reduced maintenance costs.
- Easy integration with variable frequency drives: Most motor lines under 3.7kW can be used with a variable frequency drive to flexibly adjust speed, optimize working performance, and meet various operational requirements.

Latest Prices of Electric Motors Under 3.7kW at Thanh Thai Motor
To help customers make an easy choice, Thanh Thai Motor would like to send you the latest price list for electric motors under 3.7kW. This price list includes various types of motors, meeting diverse usage needs.
Criteria When Buying Electric Motors Under 3.7kW
To choose suitable electric motors under 3.7kW, users need to consider several important criteria to ensure stable equipment operation, meet exact usage needs, and optimize investment costs.
- Choosing the appropriate capacity: The motor capacity must correspond to the load of the machinery or equipment. If the chosen capacity is too small, the motor is prone to overload and reduced lifespan; conversely, too much capacity will waste electricity and investment costs.
- Checking voltage and number of phases: It is necessary to determine whether the power system in use is 1-phase 220V or 3-phase 380V to select the correct type of motor. This helps the motor operate stably and safely, avoiding incidents caused by using the wrong power source.
- Choosing the right mounting type: Currently, electric motors have various mounting types such as foot mount (B3), flange mount (B5, B14), or a combination of foot and flange mount. Choosing the right mounting type will facilitate easy installation and ensure effective drive capability.
- Paying attention to performance and product quality: Priority should be given to high-efficiency motor lines with durable manufacturing materials and technical standards. This not only saves energy but also reduces maintenance costs during operation.
In addition to this article, Thanh Thai Motor has also built an electric motor video system to help customers easily learn about and select products. The comprehensive videos include introductions to popular electric motor lines, advice on choosing kW capacity according to usage needs, instructions for proper technical installation and operation, maintenance experience sharing, and updates on quotations and important notes before purchasing.
Frequently Asked Questions
What should be noted when purchasing electric motors under 3.7kW?
When selecting electric motors under 3.7kW, you need to pay attention to factors such as capacity, operating voltage (1-phase or 3-phase), rotational speed, mounting type, IP protection class, and manufacturing brand. Choosing the correct technical specifications will help the motor operate durably and safely, delivering long-term usage efficiency.
What rotational speed (RPM) should be chosen for electric motors under 3.7kW?
The rotational speed of the motor depends on the number of poles and the power frequency. With a 50Hz power source, common speeds are approximately 2,900 RPM (2 poles), 1,450 RPM (4 poles), and 960 RPM (6 poles). Choosing the appropriate speed must be based on machinery requirements and the necessary torque to ensure drive efficiency.
Can electric motors under 3.7kW start directly (DOL) or do they require another starting method?
Electric motors under 3.7kW typically use the Direct On-Line (DOL) starting method because the starting current remains within allowable limits. If speed adjustment or starting current reduction is needed, it should be combined with a Variable Frequency Drive (VFD) or Soft Starter to make the motor operate more stably and durably.






















