1.1kW Motor
What is a 1.1kW Motor?
The 1.1 kW three-phase asynchronous motor is a standard, general-purpose workhorse designed for medium-load industrial applications. Manufactured in strict accordance with GB/T 755 and IEC 60034 international electrical standards, it features a totally enclosed die-cast aluminum housing and high-density pure copper windings. With an upgraded power profile, the motor delivers ample starting torque, robust medium-load capacity, and excellent load compatibility, easily handling complex industrial conditions such as start-stop surges, continuous medium-load operation, and intermittent fluctuating loads.
Featuring a rugged structure, stable operation, and high reliability, this motor serves as a core power component for air compressors, small machine tools, conveyor systems, and fluid handling equipment. It supports voltage and frequency specifications across global regions and undergoes a comprehensive 100% inspection process before leaving the factory.
Models





Features
- Upgraded medium-duty power capabilities with robust resistance to start-stop surges: Power reserves are comprehensively enhanced, delivering ample starting torque. The system smoothly absorbs the inrush current and load fluctuations that occur during the startup of air compressors and machine tools, effectively eliminating issues such as sluggish starts, rotor stalling, and speed drops. It is ideally suited for operations involving frequent start-stop cycles and intermittent medium-duty workloads, ensuring consistent and stable power output.
- High-density pure copper windings ensure low-loss, long-lasting operation. Precision winding using high-purity oxygen-free copper is combined with a dual process of vacuum high-pressure varnish impregnation and high-temperature curing, resulting in uniform coil arrangement and excellent insulation sealing. The unit operates with low energy loss and uniform heat distribution; it maintains consistent power output during prolonged, continuous medium-load operation and offers resistance to aging, high voltage, and variable-frequency stress, significantly extending the equipment's service life.
- Standardized installation specifications for zero-cost replacement: Supports four national standard mounting configurations-B3 (foot-mounted), B5 (flange-mounted), B35 (foot-and-flange mounted), and B14 (face-mounted)-with frame dimensions adhering to IEC international standards. This ensures exceptional compatibility, allowing for the replacement of old equipment or integration into complete systems without the need for structural modifications or changes to mounting holes.
Products Description
|
Model |
MS Series 1.1kW Motor |
|
Frame |
90 |
|
Power |
1.1kW |
|
Speed |
3000rpm, 1500rpm, 1000rpm |
|
Voltage |
220/380V, 230/400V, or customization |
|
Frequency |
50HZ/60HZ |
|
Efficiency |
IE1, IE2, IE3, IE4 |
|
Motor shaft diameter |
Φ24 |
|
Cooling |
Fan |
|
Protection |
IP44/IP54/IP55 |
|
Housing |
Aluminum/Cast Iron |
|
Ambient temperature |
-15℃≤0℃≤40℃ |
|
Altitude |
No exceeding 1000 meters |
|
Duty |
S1 |
Drawings

Installation position

Our advantages

Production








Application



Company Profile



FAQ
Q: How should I choose between the two frame sizes (80 and 90), and what are the differences?
A: The 80-frame model features a compact design, making it suitable for applications with limited installation space. The 90-frame model offers superior structural rigidity and a larger heat dissipation area, making it ideal for demanding operating conditions involving long-term, high-intensity full-load operation and frequent start-stop cycles. Customers can make a flexible choice based on equipment installation dimensions and load requirements.
Q: Can motors with standard dual-frame sizes directly replace common motors on the market?
A: The 80/90 frame sizes strictly adhere to IEC international standards; mounting hole spacing, flange dimensions, and shaft diameter specifications are universally compatible. Models with the same mounting configuration allow for direct, seamless replacement without requiring modifications to the equipment frame or mounting structure.
Q: What compatibility factors should be considered when using this unit with a speed reducer?
A: It is recommended to pair the unit with a speed reducer that matches the corresponding torque specifications to avoid prolonged operation under excessive torque loads. During installation, ensure precise coaxial alignment to prevent vibration and uneven bearing wear caused by eccentric mounting. This model features standard shaft diameters and universal mounting dimensions, allowing for direct compatibility with various worm, planetary, and gear reducers.
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