ABB ACS800 Series - Appendix A1: Motor Rotor Inertia, US

Appendix A1: Motor Rotor Inertia, US
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Appendix A1: Motor Rotor Inertia, US
The following tables are an example of common Inverter Duty AC Motor Rotor
Inertia. The data presented is from Marathon Motors’ Blue Max XRI Premium
Efficiency Motor Performance Series.
Horsepower Poles
Base
RPM
NEMA
Frame
FL Amps /
460 V
FL Torque
(lbft)
Inertia
(lbft
2
)
1
4 1756 143T 1.5 3.0 0.12
6 1140 145T 1.7 4.6 0.12
1.5
2 3460 145T 1.9 2.3 0.05
4 1730 145T 2.2 4.5 0.14
6 1175 182T 2.2 6.7 0.41
2
2 3460 145T 2.6 3.0 0.06
4 1750 145T 3.0 6.0 0.15
6 1175 184T 2.9 8.9 0.52
3
2 3525 182T 3.8 4.5 0.13
4 1760 182T 3.9 9.0 0.40
6 1174 213T 4.4 13.5 0.87
5
2 3505 184T 5.9 7.5 0.17
4 1750 184T 6.1 15.0 0.52
6 1170 215T 6.9 22.5 1.10
7.5
2 3540 213T 8.9 11.0 0.44
4 1770 213T 9.6 22.5 1.10
6 1175 254T 9.9 33.5 2.50
10
2 3535 215T 11.8 15.0 0.55
4 1785 215T 12.5 30.0 1.30
6 1176 256T 13.1 44.5 3.00
15
2 3550 254T 17.5 22.0 1.00
4 1775 254T 18.8 44.0 2.30
6 1178 284T 20.4 66.5 3.90
20
2 3537 256T 23.4 29.5 1.30
4 1773 256T 24.1 59.5 3.20
6 1174 286T 26.8 89.0 4.50