Table
Generator Motor Starting kVA by HP/Code
Generator Motor Starting kVA by HP/Code reference with assumptions and boundary notes.
Reference boundary
Starting kVA estimate only. Generator alternator data, voltage-dip tolerance, starter method, motor load, and manufacturer sizing tools govern selection.
Reference table
Estimate generator starting kVA from motor horsepower and locked-rotor code-letter midpoint.
| Motor hp | Code letter | kVA/hp midpoint | Starting kVA | Boundary |
|---|---|---|---|---|
| 5 | F | 4.75 | 24 | starting kVA estimate only; generator voltage-dip and motor-starting method require manufacturer review |
| 10 | G | 5.3 | 53 | starting kVA estimate only; generator voltage-dip and motor-starting method require manufacturer review |
| 25 | H | 6.3 | 158 | starting kVA estimate only; generator voltage-dip and motor-starting method require manufacturer review |
| 50 | J | 7.5 | 375 | starting kVA estimate only; generator voltage-dip and motor-starting method require manufacturer review |
| 75 | K | 8.5 | 638 | starting kVA estimate only; generator voltage-dip and motor-starting method require manufacturer review |
| 100 | L | 9.5 | 950 | starting kVA estimate only; generator voltage-dip and motor-starting method require manufacturer review |
Use notes
- Use this table for preliminary reference and arithmetic checks only.
- Confirm equipment ratings, product markings, installation conditions, utility requirements, and the local authority requirements before design or field use.