STANDARD MOTORS

>ASYNCHRONOUS HIGH STARTING TORQUE SINGLE-PHASE MOTORS WITH CENTRIFUGAL SWITCH

Standard asynchronous single-phase motors have a low starting torque and therefore can be difficult to start with loads or voltages lower than the nominal one. The use of a centrifugal switch is a good solution to solve this problem. The aim of this switch is the connection of a starting capacitor to the asynchronous single-phase motor in order to get the required starting torque and to disconnect it in the running condition. E.M.G. has single speed asynchronous single-phase motors with centrifugal switch with high reliability and strength. According to EN 60072-1, standardized powers from 0.25kW (0.33HP) 71 MEC size to 2.2kW (3HP) 100 MEC size are available.
These motors are able to satisfy a wide range of demands. They are divided in MD2 and MD4 series referring to the meaning of the following symbols:

 

MD = Single-phase Switch Series;
X =  2, 4: number of poles.

 

 

 

MEANINGS OF THE SYMBOLS IN THE TABLE

The meanings of the symbols used for the main features are shown in the table for an easy reference of the technical specifications of the motors.

 

 

 
 

E.M.G. Elettromeccanica s.r.l. - Via Croce - 36050 Gambugliano (VI) - T. +39.0444.295111 - F. +39.0444.951850 - P.IVA e C.F. 03970790246 -
www.firgroup.com - www.nidec.com

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