Property and Featurs: 　　YEJ2 series electromagnetic-brake motors are improved products on the base of YEJ series . The technical properties of its motor conform to the requirements of Y2 series .The performances of the brake assembly are improved . 　　YEJ2 can make action promptly when the power of electric motor is off . Quick brake time doesn't exceed 0.15 second for frame sizes 63MM up to 90MM and not exceed 0.2 second for frame sizes 100MM up to 160MM . This series can acquire slow brake time by changing the connection in the terminal box as per customer's request . 　　This series have low noise and the braking performance is reliable . The working principle: the electromagnetic-brake motors acquire 198V directcurrent rectified from 220V AC when the power is on . At the same time , the armature is attracted by electromagnet . This makes brake disc ratable and enables motor to run freely . Whin the power is off , the electromagnet loses electromagnetic force . The armature is pushed by the spring and sticks to endshield of the motor immediately , the rotation is stopped therefor . 　　This series are widely used in machine tools, packaging machinery,woodworker machinery , food processing machinery , chemical engineering machinery , textile machinery , construction machinery , gear reducer and so on. Conditions:Motors of this series can continuously run at the rated power under the following conditions: ①Altitude:Ablve sea level , not exceeding 1000m . ②Ambient temperature:It varies with seasons but not exceeding +40℃. Voltage,Frequency and duty Frequency:50Hz,60Hz Rated Voltage:220V/380V,380V/660V Connection:Y-connection for 3kW and below whereas delta-connection for 4kW and above . Duty:Continuous(S1) Insulation class:B ,F Protection:IP44 , IP54 or IP55 NOTES:Imported bearing and locked bearing at D-end on requst .