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NEMA Code Letters for Motors
Reference: NEMA Standard MG 1-10.37.2
Copyright 2002 - Peter R. Stech
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Volts 

V

Single Phase Motors
Locked Rotor Current 

A Starting kVA/HP

kVA

Motor Hp

  

 Hp NEMA CODE Letter

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Letter Designations for Locked Rotor kVA per Hp as measured at full voltage and rated frequency!

3-Phase Motors
Starting kVA/HP

kVA
NEMA CODE Letter

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Calculate the Starting kVA per Hp and determine the NEMA Code Letter from the Table below!