The Ultimate Guide to Fan Motors: Technical Specifications
Fan motors are essential components in various industries, including HVAC systems, automotive cooling, industrial machinery, and home appliances. Whether you need a high-performance motor for industrial ventilation or a quiet, energy-efficient model for residential use, understanding the key specifications ensures you select the right product.
In this guide, we’ll break down the critical parameters of fan motors, present detailed comparisons, and answer the most frequently asked questions.
Key Specifications of Fan Motors
1. Motor Types
Fan motors come in different designs, each suited for specific applications:
AC Motors – Best for continuous operation, commonly used in HVAC systems.
DC Motors – Energy-efficient, ideal for battery-powered or variable-speed applications.
EC Motors (Electronically Commutated) – Combine AC and DC advantages for high efficiency and controllability.
Shaded Pole Motors – Low-cost, suitable for small fans with minimal torque requirements.
2. Power & Voltage Ratings
Parameter
Typical Range
Application Example
Voltage (V)
12V, 24V, 115V, 230V
12V/24V – Automotive cooling
Power (W)
5W – 750W
<50W – Small fans, electronics
Current (A)
0.1A – 10A
Higher current – Industrial
3. Speed & Airflow Performance
Speed (RPM)
CFM (Cubic Feet per Minute)
Noise Level (dB)
800 – 1,200
50 – 200
20 – 35 (Quiet)
1,500 – 2,500
200 – 800
35 – 55 (Moderate)
3,000+
800 – 2,500+
55 – 75 (Loud)
4. Efficiency & Protection Features
Energy Efficiency Class (IE1, IE2, IE3, IE4)
Thermal Protection (Auto-reset or manual reset)
IP Rating (Ingress Protection, e.g., IP55 for dust/water resistance)
The air conditioner fan is located in the condenser unit (the portion of the AC that is parked outside your home). Therefore, to determine whether or not this part is working, you’ll have to walk outside and look at the fan through the vents of the condenser unit.
This motor comes with a (detached) cord with grounded plug, motor capacitor and a 3-speed control switch. All of the wiring between your electric motor, capacitor and quickness control switch is still hooked up however the cord itself is normally detached as seen in the photos.
Raydafon is one of the most professional Fan motor manufacturers and suppliers in China, featured by good service and competitive price. Please feel free to buy high quality Fan motor made in China here from our factory.
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