Double speed motor For air cooler and water cooler two speed for electric motor 1/4HP, 1/3HP, 1/2HP, 3/4HP Cooling use Double speed motor1.two speeds2. Rated power: 1/4HP-1/12HP, 1/3HP-1/9HP, 1/2HP-1/6HP, 3/4HP-1/4HP3. Frequency: 50/604. Protection class: IP245. Insulation class: F6. Special motors can be designed according to customer's requirment Double speed motor