Backward centrifugal fan motor air purifier EC motor

AC Fan

EC Fan

1

Motor speed is affected by power frequency.

Motor speed is not affected by power frequency.

2

Small speed range.

Big speed range.

3

Fixed speed.

Stepless speed regulation.

4

Small start torque.

Big start torque.

5

Small motor maximum efficiency range.

Big motor maximum efficiency range.

6

Low motor efficiency.

High motor efficiency.

7

Big motor efficiency loss.

Small motor efficiency loss.

8

High motor temperature rise.

Low motor temperature rise.