Typical Motor Nameplate Information

Typical Motor Nameplate Information

Manufactures Name
Serial #

Type Mode
HP

Frame SV Factor
Amps

Volts Insul
RPM

Hertze KVA
Duty

Phase Temp. C
NEMA Nom. Eff DBA/ Noise Therm protection sealed bearing


Type:    Identifies type of enclosure
Serial #:

The specific motor identification

Model #: Manufacturer’s identification
Frame Size:      Measurements of the motor
Service Factor:

Common service factor for refr. motor is 1.15,which means the motor may be operated safely without injury to the insulation if it is run at 115% of name plate values for short period of time

Amperes:         

Also FLA and RLA means current draw from the motor when it is running at full load

LRA:

Locked rotor amps. The amount of current required to start the rotor turning a full load. Usually 6 x FLA

Volts: The value of voltage measured at the motor terminals for which the motor is designed
Insul:

The class of insulation used in the winding of the motor. For a class B, the maximum operating temp. is 130 C, class F is 155 C, class H is 180 C

RPM:

Speed of motor when all other plate conditions are met

Hertz:

Freq. Of the power system for which the motor is designed

Duty: Cycle of operation that the motor can safely operate fully loaded “continuous” means 24 hrs a day “intermediate” will also show a time interval
Temp:  

Ambient temp, the max temp of the surrounding air

Phase:

Voltage phase of the power system for which the motor is designed

kVA:    Indicates the locked rotor kVA per horsepower. Uses to determine starting equipment protection          





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