continious duty and long life Use and Feature: This Motor have double speeds function, the speed can adjustable, Set up a damping device, low noise, the Motor have good cooling performance, especial apply to Water-cooled air-conditioning, central air conditioning equipment and matching for other industrial equipments.ModelPowerVolt.Fre.SpeedG.WPackingQTY.HPVHzr/minKgcmpcsCL12M280B11/4,1/ ...