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20HP Electric Motor
In China

Leading 20HP Electric Motor Manufacturer

  • 100% Copper Coil
  • High Precision And Low Noise Bearing
  • One Time Molding
  • Low Vibration
  • 100% Power Output

20HP Electric Motor Catagory

Xinnuo is currently successfully catering to clients across the world with high-grade motors.

20 hp electric motor Ms series
MS Series Aluminum Shell 20 HP Three-phase B5 Flange Motor
20 hp electric motor Y2 series
Y2 series 20 hp Three-phase electric motor
20 hp electric motor Y3 series
Y3 series 20 hp Three-phase electric motor
20 hp electric motor YCT series
YCT Series Electromagnetic Speed Regulating 20 hp electric Motor

20HP Electric Motor

Xinnuo is currently successfully catering to clients across the world with high-grade motors.

20HP Electric Motor Specifications

Ambient temperature-15℃≤0≤40℃
Altitudenot exceeding 1000m
Rated voltage380Vor any voltage between 220-760V
Rated frequency50HZ, 60HZ
Protection classIP 55
Insulation classF, H
Cooling methodICO141
ConnectionStar-connection for up to 3kw, delta-connection for 4kw and above.

Data Sheet of 20HP Electric Motor

For more info, click to download our catalog

20 hp electric motor Data Sheet

Factory Tour

20 hp electric motor Factory1

Packing of Electric Motor

Packaging Details: Strong cartons with foams inside, or plywood case
Delivery Detail: 15-30 working days after payment

20HP Electric Motor| The Ultimate FAQ Guide


If you are looking for a dependable motor for your electronic projects, a 20HP electric motor is a perfect option. This motor offers low noise and vibration, along with its beautiful structure. Its outstanding features and flexible operations make it popular in the electronic world.

Xinnuo Motor has been manufacturing 20HP electric motors of numerous series for a long period. We provide reliable customization and assembling of these motors at affordable costs. This FAQ guide will be an excellent help for you to get a deep understanding of the ins and outs of 20 HP motors. Let’s start.

1. What Is A 20HP Electric Motor?

A 20HP electric motor is a supremely functional and durable motor. It ensures excellent torque-speed in high-speed motor applications that promote the quality of devices. The significant parts of this motor are-

  • Shaft cover
  • Rotor
  • Stator
  • Bearing
  • Terminal box base
  • Fan
  • Frame
  • Bolt

This motor converts 20 HP, which means 14920 Joules of electrical energy to mechanical form. It is mainly found in three-phase connections. But, some 20 HP single phase motors are used in several applications.

The construction materials of a 20HP electric motor are supremely durable. Its specifications and performance are impressive in different sectors. Besides, the cost-effective feature makes it preferable to consumers for their electronic projects.

That’s why it remains functional over a long time. So, you can rely on this motor for your project without any hesitation.

Figure 1- 20HP Electric Motor

Figure 1- 20HP Electric Motor

2. What Are The Operating Conditions Of A 20HP Electric Motor?

20HP electric motors are effective in different operating conditions. But, you need to ensure a suitable condition for this motor to achieve the highest output. The basic operating conditions for a 20 HP electric motor includes-

  • The ambient temperature should be between -15⁰C and 40⁰C.
  • The insulation class is F and H.
  • The altitude should not be higher than 1000m.
  • The rated voltage varies from 220V to 760V.
  • The cooling method is ICO141.
  • The rated frequency is 50Hz and 60Hz.
  • Ingress protection (IP) rating is IP55. That means it is resistant to dust and moisture to a large extent.
  • Compatible with both Star and Delta connections.

Figure 2- 20HP Electric Motor Basic Parameters

Figure 2- 20HP Electric Motor Basic Parameters

3. How Much Current Does A 20HP Electric Motor 3 Phase Draw?

A 20HP electric motor 3 phase amp rating is effective for high-density applications. Different series of 20 HP motors draw different currents during their operations. The amp rating varies due to torque-speed, efficiency, etc.

We are here with a list of 20 HP three phase motor amps for your convenience.

TypesAmps RatingEfficiencySynchronous Speed
Y2 Series 3 Phase Motor28.890.3%3000
Y3 Series 3 Phase Motor28.890.3%3000
YE3 Series Ultra High Efficiency 3 Phase Motor27.291.8%3000
MS Series aluminum Shell 3 Phase Motor29.290%3000

Figure 3- 20HP Electric Motor 3 Phase Current Drawing

Figure 3- 20HP Electric Motor 3 Phase Current Drawing

4. What Is The Average Weight Of A Standard 20HP Electric Motor?

A standard 20HP electric motor weight varies from 280lb to 500lb in most cases. Y2, Y3, YE3 series 20 HP motors are available in small and large sizes. Since weight is crucial for motor-based applications, you need to pay proper attention to this feature.

A 20 HP electric motor’s weight affects manufacturing cost, maintenance, quality control, etc. Proper weight is mandatory for ensuring dimensional stability in the case of the length and height of an electric motor. 20 HP motor weight is adequate for handling operations in electronic applications.

5. How Do You Ensure Quality Control Of A 20HP Electric Motor?

You can ensure quality control of a 20HP electric motor if you maintain the following things.

  • You have to ensure regular maintenance of this machine.
  • You should conduct some reliable tests to check its functionality. The Full Load Amp test (FLA) and insulation tests effectively deliver a clear idea about the performance of a 20HP electric motor.
  • It is required to maintain proper winding resistance between different winding terminals.
  • You should keep the ambient temperature within the safe limit.
  • Always try to avoid extreme humid conditions while storing this motor.

6. What Is The Torque Rating Of 20HP Electric Motor?

The torque rating is a vital factor in electric motor operation. 20 HP 3 phase electric motors offer superior torque-speed because of their reliable operating principles. Their voltage rating, frequency, PF rating, etc are effective for generating a high torque speed.

Y2 series small size 3 phase motors are compatible with 750 rpm, 1500 rpm, and 3000 rpm speed. Besides, YE3 series ultra-high frequency 3 phase motors offer 750 rpm, 1000 rpm, 3000 rpm, etc speeds. These ratings are supremely effective for different applications, like industrial equipment, agricultural instruments, etc.

But, 20 HP single phase motors are not reputable for generating higher torque. These motors are used in applications requiring low speed, such as various home appliances.

Figure 5- 20HP 3 Phase Electric Motor Torque Rating

Figure 5- 20HP 3 Phase Electric Motor Torque Rating

7. How Do You Compare 20HP Single Phase And 3 Phase Motors?

20 HP 3 phase motors offer superior performance than single-phase motors of an equal HP rating. Three-phase motors are better than single-phase motors from the following aspects.


Three-phase electric motors don’t require a feature of starting torque. Besides, their components are highly functional and durable compared to a single-phase electric motor 20 HP.

Torque Speed

A 20 HP 3 phase motor torque-speed is significantly high. Its operating principle is reliable for controlling the high speed of the rotor. But, 20 HP single phase motors are not as suitable as three-phase motors for high-speed operations.

PF Rating

A three-phase electric motor 20 HP offers a high PF rating during its operation. On the contrary, the power factor of a 20 HP electric motor single phase is low.


Three-phase motors are more cost-effective than single-phase motors. This feature improves their uses to a large extent.

Amp Rating

20 HP 3 phase electric motor amp rating is beneficial for high-density and high-power electronic applications. Single-phase 20 HP motors don’t deal with a high amp rating.

Figure 6- YL Series 20HP Single Phase Motor

Figure 6- YL Series 20HP Single Phase Motor

8. What Is The 20HP Electric Motor Shaft Size?

The 20HP electric motor shaft is an essential component of cylindrical shape. It is used in converting energy to the electronic application from the motor. The 20 HP electric motor shaft size is crucial for ensuring smooth energy conversion.

This motor’s shaft or frame sizes are 256T, 286T, 324T, 326U, etc. You need to apply proper shaft size to optimize a 20HP electric motor performance.

Figure 7- 20HP Electric Motor Shaft Size

Figure 7- 20HP Electric Motor Shaft Size

9. What Are The Most Popular Types Of 20HP Electric Motors?

20HP electric motors are found in different forms in the market. All of its series are reputable for high-grade electronic appliances. The most popular types of these motors are-

  • Y2 series three-phase motor
  • GOST standard three-phase electric motor
  • Y3 series three-phase electric motor
  • YE3 series ultra-high frequency electric motor
  • MS series Aluminum shell electric motor

Figure 8- Y2 Series 20HP 3 Phase Electric Motor

Figure 8- Y2 Series 20HP 3 Phase Electric Motor

10. How Long Does A 20HP Electric Motor Remain Functional?

A 20HP electric motor remains functional for almost 6-10 years. It consists of supremely durable elements. These materials offer superior resistance against extreme thermal, mechanical, and electrical forces.

Proper maintenance and reliable quality control can extend the shelf life of this motor to a certain extent. It is required to conduct inspections of this 20 HP motor to check its winding resistance and amp ratings.

You need to ensure proper operating conditions like ambient temperature, altitude, cooling mechanism, etc. Moisture is a silent killer of electronic equipment. That’s why you should store these motors in places free from dust and moisture contamination.

Figure 9- 20HP Electric Motor Long Lifespan

Figure 9- 20HP Electric Motor Long Lifespan

11. Where Do You Use A 20HP Electric Motor?

A 20HP electric motor has excellent applications in various sectors. Its superior features make it compatible with wide-scale applications. The most important uses of this motor are listed below for your convenience.

  • Boilers
  • Refrigerator
  • Rolling mils
  • Medical industry
  • Paper industry
  • Air conditioner
  • Turbines
  • Home appliances
  • Drilling machinery
  • Fans
  • Industrial machinery
  • Compressor
  • food and beverage
  • Automotive vehicles
  • Agricultural pieces of machinery.
  • Power equipment
  • Mining equipment
  • Air pumps
  • Ships
  • Movers

Besides, it has compatibility with both low and high-voltage applications. That’s why you can consider using a 20HP electric motor in electronic projects that deal with variable voltage ratings.

Figure 10- Widely Used 20HP Electric Motor

Figure 10- Widely Used 20HP Electric Motor

12. What Are The Significant Benefits Of Using 20HP Electric Motors?

The most significant benefits of using a 20HP electric motor are-

  • High amp rating
  • Effective PF rating
  • Superior functionality due to its mechanism and components.
  • Almost low moisture absorption rate and impressive IP rating.
  • Compatibility with different thermal states.
  • Supreme speed control.
  • High torque rating and efficiency.
  • Long shelf life

Figure 11- Benefits Of Using A 20HP 3 Phase Electric Motor

Figure 11- Benefits Of Using A 20HP 3 Phase Electric Motor

13. What Is The Wiring Process Of A 230V 20HP Single Phase Motor?

The wiring process of a 230V 20HP single phase motor is simple. When connecting wires of single voltage motors, first connect the ground terminals to the ground wires. Then, connect two hot wires with the loaded wires of 20 HP single phase motors.

The process is slightly different in the case of double-voltage 20 HP single phase motors. Here, you need to connect the green ground terminal to ground wires. Then, establish a terminal connection at the ground.

Thus you can adequately wire a 230V single phase electric motor. If you face difficulties in wiring, follow the design guideline prescribed by the manufacturer.

Figure 12- 230V Single Phase 20HP Electric Motor Wiring

Figure 12- 230V Single Phase 20HP Electric Motor Wiring

14. Are There Any Limitations Of 20 HP Single Phase Electric Motors?

20 HP single phase motors have some considerable disadvantages that limit their applications in different sectors. The notable limitations of a single phase motor having a 20 HP rating include-

  • This motor doesn’t have self-starting features.
  • Its torque speed is not suitable for high-speed motor-based electronic applications.
  • The power factor rating of a 20 HP electric motor single phase is significantly low.
  • This motor is significantly expensive compared to a three-phase electric motor of the same horsepower.

You should choose a trustworthy and experienced electric motor manufacturer. Xinnuo Motor manufactures single-phase electric motors of versatile series with outstanding reliability. It ensures you get high-quality 20HP electric motor single phase at competitive prices.

Figure 13- 20HP Electric Motor Limitations

Figure 13- 20HP Electric Motor Limitations

15. What Is 20HP Electric Motor Power Consumption Per Hour?

20HP electric motor consumes power effectively to deliver the optimum output in energy conversion. Its power consumption relies on rated output power, load factor, PF rating, etc.

consumed power = 0.746HPEfficiency load factor1 Hour

You can also calculate the 20HP 3 phase motor power consumption by using the following equation.


If the efficiency of a 20 HP three-phase electric motor is 90%, the load factor is 80%, its power consumption will be around 10.74 kWh. You can also find the cost per hour by multiplying this power consumption rating with electricity cost per unit.

16. What Is The Cable Size Of A 20HP Electric Motor?

The 20HP electric motor cable size depends on several factors such as rated voltage, current consumption, efficiency, power factor, etc. You can use the following formula to calculate the rated current of this motor.

Current= (√3VIcos∅)/(1.732VEfficiencyPF)

But, you don’t achieve this current rating in the practical case of 20 HP motors. There is a phenomenon called the derating factor in electric motor operations. It refers to the change of dimensions of cable size because of variation of temperature in surroundings.

That’s why you need to multiply the rated current calculated from the above equation with the derating factor. Then, it is straightforward to find the appropriate cable size concerning the current rating from the cable size chart.


Xinnuo motor is a reputed company in China that ensures excellence in manufacturing high-grade 20HP electric motors. Our motors have single-phase and three-phase specifications. Besides, these electric motors meet the regulations of IEC and RoHS.

We have tried to place all required details of 20HP electric motors. We hope you will benefit from this FAQ guide. For further queries, feel free to contact us. Our competent customer service team will respond within the shortest possible time. Stay tuned.

You can also send the inquiry to email: sales@xinnuomotor.com directly.
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