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The YEJ 220/380V ac motor electro magnetic brake motor is a fully enclosed self-fan-cooled squirrel-cage three-phase asynchronous motor with an additional disc type DC brake. It has the advantages of rapid braking, simple structure, high reliability, and strong versatility. In addition, the brake has a manual release mechanism and is widely used in various mechanical equipment and transmission devices that require quick stop and precise positioning.The flange installation dimensions of this series are the same as the Y2 series.
Product Detail
Motor Type: YEJ 220/380V ac motor electro magnetic brake motor
Rated Voltage: 380V
Rated Frequency: 50Hz、60Hz
Protection Class: IP44、IP54、IP55
Insulation Class: B、F、H
Cooling Method: ICO141
Duty: S1 (continuous)
Connection: Star-connection for up to 3kw, delta-connection for 4kw and above
Remark: Motors can be equipped with PTC, for frame size 160 and above, also can be equipped with re-greasing system
Product Parameter (specification)
220/380V ac motor electro magnetic brake motor
Production Features
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FAQ
The rated current IN of a three-phase asynchronous motor is the stator input line current when the motor is applied with rated voltage and rated frequency to output rated power, generally in amperes (A). It is a theoretical calculation value. For a three-phase AC motor, the calculation method is as follows: IN=PN/(√3UNηNcos∮N). Where: IN——Rated current, A; PN——Rated power, W; UN——Rated voltage, V; ηN——The efficiency standard value specified in the technical conditions of the motor; cos∮N——The technical conditions of the motor The standard value of the power factor specified in.
eg: A certain motor PN=15KW, UN=380V, ηN=88.5%, cos∮N=0.85, then IN=15000/(√3×380×0.885×0.85)=30.3(A)
For low-power motors, when the PN unit is KW, the rated current IN≈2PN. eg: In the above example, IN≈2PN=2×15=30. This is a simple notation for estimating the rated current. When using this simple algorithm, the low-power motor ηN and cos∮N are relatively low, so you can appropriately increase the point multiple, such as 2.2PN; on the contrary, the high-power motor ηN and cos∮N are relatively high, so you can appropriately reduce the multiple, such as 1.9PN.
Rated current is the most important parameter for selecting power distribution equipment and power supply equipment.
