How to read an electrical motor nameplate


#1

These are the main data included in an electrical motor name plate.

1.Manufacture’s type and frame designation
2.Horsepower output or kw output
3. Maximum ambient temperature for which motor is designed
4.Insulation class
5.Voltage
6.Frequency
7.RPM at rated load
8.Phase
9.Current
10.Code letter for locked rotor kva
11.Design letter for medium motors
12.Service factor if other than 1.0
13.Nominal efficiency
14.Connection details

electrical motor name plate


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