Difference Between AC And DC Motor Fans

dc ceiling fans advantages

In comparison to a standard AC motor there are several advantages of a DC ceiling fan.

The difference between AC and DC motors

Firstly, it is important to know the difference between an AC and DC motor.

An AC motor means it is connected to the power source directly providing the force required to rotate the motor of the ceiling fan with the electric current reversing direction.

A DC motor will have a transformer connected to the power source which converts the power to DC decreasing the amount of energy required to operate the fan. The electric current will only flow in one direction and will not reverse.

Therefore, considering the difference in technology the advantages of a DC Motor fan are as follows:

• New technology is utilised which means DC fans are up to 70% more energy efficient when compared to an AC fan.
• They are generally quieter than AC motors and this is why they are a popular option when looking for a bedroom fan.
• Most models will come with a remote control as standard with more speed options. AC motor fans often have remotes that need to be purchased as an accessory.
• Reversible for summer and winter use via the remote rather than the motor for added convenience.
• Are often faster to start, stop and change speeds.

However, AC motors also have their benefits including:

• Use less electricity than most household appliances especially air conditioning as a standard AC ceiling fan will use no more than 90w on the highest speed with the majority of models using less.
• Most AC fans have the flexibility of being controlled via wall control or remote. Usually they come standard with a wall control however a remote control will generally be available for purchase as an accessory.
• There is a wide variety of styles with more options at a lower price point.

For more information on how to select the right ceiling fan for your space take a look at our Ceiling Fan Buying Guide.