Product Description

YC Series Single Phase Capacitor Start Asynchronous Motor is suitable for air compressor, pump and other equipment of high start torque.
The series motor features by high start torque, excellent running performance, little shape, light weight, low noise and easy maintenance.

Protection Class: IP44/IP54           Cooling Type: IC0141
Insulation Class:B or F                  Operation Type: S1
Rated Voltage: 115/230,220V        Rated Frequency: 60 Hz(50Hz)
Shell material: casting iron and aluminium alloy (only used below 100)

Technical Data (220V/50Hz)                                                                                              

Model Power


Power Factor


locked torque
Rated torque
locked current
Rated current
Hp kW
YC7112 1/4 0.18 1.89 0.72 60 2800 3.0 7 1.8
YC7122 1/3 0.25 2.4 0.74 64 2800 3.0 7 1.8
YC8012 1/2 0.37 3.4 0.77 65 2800 2.8 6.5 1.8
YC8571 3/4 0.55 4.7 0.79 68 2800 2.8 6.5 1.8
YC90S-2 1 0.75 6.1 0.8 70 2800 3.0 6.5 1.8
YC90L-2 1.5 1.1 8.7 0.8 72 2800 2.5 7 1.8
YC90L-2 2 1.5 11.4 0.81 74 2800 2.5 7 1.8
YC100L-2 3 2.2 16.5 0.81 75 2800 2.2 7 1.8
YC100L1-2 4 3 21.88 0.82 76 2800 2.2 6.8 1.8
YC100L-2 5 3.7 26.64 0.82 77 2800 2.2 6.4 1.8
YC112M-2 4 3 21.4 0.82 76 2800 2.2 7 1.8
YC7114 1/6 0.12 1.88 0.58 50 1400 3.0 9 1.8
YC7124 1/4 0.18 2.49 0.62 53 1400 2.8 7 1.8
YC8014 1/3 0.25 3.11 0.63 58 1400 2.8 6 1.8
YC8571 1/2 0.37 4.24 0.64 62 1400 2.5 6 1.8
YC90S-4 3/4 0.55 5.5 0.69 66 1400 2.5 6 1.8
YC90L-4 1 0.75 6.9 0.73 68 1400 2.5 6.5 1.8
YC90L-4 1.5 1.1 9.6 0.74 71 1400 2.5 6.5 1.8
YC100L-4 2 1.5 12.5 0.75 73 1400 2.5 6.5 1.8
YC112M-4 3 2.2 17.8


74 1400 2.2 6.5 1.8
YC132S-4 4 3 23.6 0.77 75 1400 2.1 6.5 1.8
YC132S-4 5 3.7 28 0.79 76 1400 2.1 6.5 1.8
YC132M-4 7.5 5.5 32.5 0.95 81 1400 2.1 6.5 1.8


Frame                                           Installation dimensions            Dimensions
                         IMB3 IMB14    IMB34 IMB5       IMB35              IMB3
71 112 90 45 14 30 5 11 71 7 85 70 105 0 M6 2.5 130 110 160 10 3.5 145 145 140 95 180 255
80 125 100 50 19 40 6 15.5 80 10 110 80 120 0 M6 3 165 130 200 0 12 3.5 160 165 150 110 200 295
90S 140 100 56 24 50 8 20 90 10 115 95 140 0 M8 3 165 130 200 0 12 3.5 180 185 160 120 220 370
90L 140 125 56 24 50 8 20 90 10 115 95 140 0 M8 3 165 130 200 0 12 3.5 180 185 160 120 220 400
100L 160 140 63 28 60 8 24 100 12 215 180 250 0 15 4 205 200 180 130 260 430
112M 190 140 70 28 60 8 24 112 12 215 180 250 0 15 4 245 250 190 140 300 455
132S 216 140 89 38 80 10 33 132 12 265 230 300 0 15 4 280 290 210 155 350 525
132M 216 178 89 38 80 10 33 132 12 265 230 300 0 15 4 280 290 210 155 350 525




Pre-sales service: 
•We are a sales team, with all technical support from engineer team.
•We value every inquiry sent to us, ensure quick competitive offer within 24 hours.
•We cooperate with customer to design and develop the new products. Provide all necessary document.

After-sales service:
•We respect your feed back after receive the motors.
•We provide 1years warranty after receipt of motors..
•We promise all spare parts available in lifetime use.
•We loge your complain within 24 hours.
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Application: Universal
Speed: High Speed
Number of Stator: Single-Phase
Function: Driving
Casing Protection: Closed Type
Number of Poles: 2, 4, 6P
US$ 100/Piece
1 Piece(Min.Order)




induction motor

What role do AC motors play in HVAC (heating, ventilation, and air conditioning) systems?

In HVAC (heating, ventilation, and air conditioning) systems, AC motors play a crucial role in various components and functions. These motors are responsible for powering fans, compressors, pumps, and other essential equipment within the HVAC system. Let’s explore the specific roles of AC motors in HVAC systems:

  • Air Handling Units (AHUs) and Ventilation Systems: AC motors drive the fans in AHUs and ventilation systems. These fans draw in fresh air, circulate air within the building, and exhaust stale air. The motors provide the necessary power to move air through the ductwork and distribute it evenly throughout the space. They play a key role in maintaining proper indoor air quality, controlling humidity, and ensuring adequate ventilation.
  • Chillers and Cooling Towers: HVAC systems that use chillers for cooling rely on AC motors to drive the compressor. The motor powers the compressor, which circulates refrigerant through the system, absorbing heat from the indoor environment and releasing it outside. AC motors are also used in cooling towers, which dissipate heat from the chiller system by evaporating water. The motors drive the fans that draw air through the cooling tower and enhance heat transfer.
  • Heat Pumps: AC motors are integral components of heat pump systems, which provide both heating and cooling. The motor drives the compressor in the heat pump, enabling the transfer of heat between the indoor and outdoor environments. During cooling mode, the motor circulates refrigerant to extract heat from indoors and release it outside. In heating mode, the motor reverses the refrigerant flow to extract heat from the outdoor air or ground and transfer it indoors.
  • Furnaces and Boilers: In heating systems, AC motors power the blowers or fans in furnaces and boilers. The motor drives the blower to distribute heated air or steam throughout the building. This helps maintain a comfortable indoor temperature and ensures efficient heat distribution in the space.
  • Pumps and Circulation Systems: HVAC systems often incorporate pumps for water circulation, such as in hydronic heating or chilled water systems. AC motors drive these pumps, providing the necessary pressure to circulate water or other heat transfer fluids through the system. The motors ensure efficient flow rates and contribute to the effective transfer of thermal energy.
  • Dampers and Actuators: AC motors are used in HVAC systems to control airflow and regulate the position of dampers and actuators. These motors enable the adjustment of airflow rates, temperature control, and zone-specific climate control. By modulating the motor speed or position, HVAC systems can achieve precise control of air distribution and temperature in different areas of a building.

AC motors in HVAC systems are designed to meet specific performance requirements, such as variable speed control, energy efficiency, and reliable operation under varying loads. Maintenance and regular inspection of these motors are essential to ensure optimal performance, energy efficiency, and longevity of the HVAC system.

In conclusion, AC motors play vital roles in HVAC systems by powering fans, compressors, pumps, and actuators. They enable proper air circulation, temperature control, and efficient transfer of heat, contributing to the overall comfort, air quality, and energy efficiency of buildings.

induction motor

Are there energy-saving technologies or features available in modern AC motors?

Yes, modern AC motors often incorporate various energy-saving technologies and features designed to improve their efficiency and reduce power consumption. These advancements aim to minimize energy losses and optimize motor performance. Here are some energy-saving technologies and features commonly found in modern AC motors:

  • High-Efficiency Designs: Modern AC motors are often designed with higher efficiency standards compared to older models. These motors are built using advanced materials and optimized designs to reduce energy losses, such as resistive losses in motor windings and mechanical losses due to friction and drag. High-efficiency motors can achieve energy savings by converting a higher percentage of electrical input power into useful mechanical work.
  • Premium Efficiency Standards: International standards and regulations, such as the NEMA Premium® and IE (International Efficiency) classifications, define minimum energy efficiency requirements for AC motors. Premium efficiency motors meet or exceed these standards, offering improved efficiency compared to standard motors. These motors often incorporate design enhancements, such as improved core materials, reduced winding resistance, and optimized ventilation systems, to achieve higher efficiency levels.
  • Variable Frequency Drives (VFDs): VFDs, also known as adjustable speed drives or inverters, are control devices that allow AC motors to operate at variable speeds by adjusting the frequency and voltage of the electrical power supplied to the motor. By matching the motor speed to the load requirements, VFDs can significantly reduce energy consumption. VFDs are particularly effective in applications where the motor operates at a partial load for extended periods, such as HVAC systems, pumps, and fans.
  • Efficient Motor Control Algorithms: Modern motor control algorithms, implemented in motor drives or control systems, optimize motor operation for improved energy efficiency. These algorithms dynamically adjust motor parameters, such as voltage, frequency, and current, based on load conditions, thereby minimizing energy wastage. Advanced control techniques, such as sensorless vector control or field-oriented control, enhance motor performance and efficiency by precisely regulating the motor’s magnetic field.
  • Improved Cooling and Ventilation: Effective cooling and ventilation are crucial for maintaining motor efficiency. Modern AC motors often feature enhanced cooling systems, including improved fan designs, better airflow management, and optimized ventilation paths. Efficient cooling helps prevent motor overheating and reduces losses due to heat dissipation. Some motors also incorporate thermal monitoring and protection mechanisms to avoid excessive temperatures and ensure optimal operating conditions.
  • Bearings and Friction Reduction: Friction losses in bearings and mechanical components can consume significant amounts of energy in AC motors. Modern motors employ advanced bearing technologies, such as sealed or lubrication-free bearings, to reduce friction and minimize energy losses. Additionally, optimized rotor and stator designs, along with improved manufacturing techniques, help reduce mechanical losses and enhance motor efficiency.
  • Power Factor Correction: Power factor is a measure of how effectively electrical power is being utilized. AC motors with poor power factor can contribute to increased reactive power consumption and lower overall power system efficiency. Power factor correction techniques, such as capacitor banks or power factor correction controllers, are often employed to improve power factor and minimize reactive power losses, resulting in more efficient motor operation.

By incorporating these energy-saving technologies and features, modern AC motors can achieve significant improvements in energy efficiency, leading to reduced power consumption and lower operating costs. When considering the use of AC motors, it is advisable to select models that meet or exceed recognized efficiency standards and consult manufacturers or experts to ensure the motor’s compatibility with specific applications and energy-saving requirements.

induction motor

How does the speed control mechanism work in AC motors?

The speed control mechanism in AC motors varies depending on the type of motor. Here, we will discuss the speed control methods used in two common types of AC motors: induction motors and synchronous motors.

Speed Control in Induction Motors:

Induction motors are typically designed to operate at a constant speed determined by the frequency of the AC power supply and the number of motor poles. However, there are several methods for controlling the speed of induction motors:

  1. Varying the Frequency: By varying the frequency of the AC power supply, the speed of an induction motor can be adjusted. This method is known as variable frequency drive (VFD) control. VFDs convert the incoming AC power supply into a variable frequency and voltage output, allowing precise control of motor speed. This method is commonly used in industrial applications where speed control is crucial, such as conveyors, pumps, and fans.
  2. Changing the Number of Stator Poles: The speed of an induction motor is inversely proportional to the number of stator poles. By changing the connections of the stator windings or using a motor with a different pole configuration, the speed can be adjusted. However, this method is less commonly used and is typically employed in specialized applications.
  3. Adding External Resistance: In some cases, external resistance can be added to the rotor circuit of an induction motor to control its speed. This method, known as rotor resistance control, involves inserting resistors in series with the rotor windings. By varying the resistance, the rotor current and torque can be adjusted, resulting in speed control. However, this method is less efficient and is mainly used in specific applications where precise control is not required.

Speed Control in Synchronous Motors:

Synchronous motors offer more precise speed control compared to induction motors due to their inherent synchronous operation. The following methods are commonly used for speed control in synchronous motors:

  1. Adjusting the AC Power Frequency: Similar to induction motors, changing the frequency of the AC power supply can control the speed of synchronous motors. By adjusting the power frequency, the synchronous speed of the motor can be altered. This method is often used in applications where precise speed control is required, such as industrial machinery and processes.
  2. Using a Variable Frequency Drive: Variable frequency drives (VFDs) can also be used to control the speed of synchronous motors. By converting the incoming AC power supply into a variable frequency and voltage output, VFDs can adjust the motor speed with high accuracy and efficiency.
  3. DC Field Control: In some synchronous motors, the rotor field is supplied by a direct current (DC) source, allowing for precise control over the motor’s speed. By adjusting the DC field current, the magnetic field strength and speed of the motor can be controlled. This method is commonly used in applications that require fine-tuned speed control, such as industrial processes and high-performance machinery.

These methods provide different ways to control the speed of AC motors, allowing for flexibility and adaptability in various applications. The choice of speed control mechanism depends on factors such as the motor type, desired speed range, accuracy requirements, efficiency considerations, and cost constraints.

China wholesaler YC Series Single Phase Capacitor Start Induction AC Electric Motor   vacuum pump engine	China wholesaler YC Series Single Phase Capacitor Start Induction AC Electric Motor   vacuum pump engine
editor by CX 2024-04-03