NEMA Horsepower Ratings
Polyphase Motors
NEMA Size | NEMA Continuous Amp Rating (Amp) |
Full Voltage Starting | Part Winding Starting | Wye Delta Starting | ||||||
200V | 230V | 460V 575V | 200V | 230V | 460V 575V | 200V | 230V | 460V 575V | ||
00 | 9 | 1 1/2 | 1 1/2 | 2 | ||||||
0 | 18 | 3 | 3 | 5 | ||||||
1 | 27 | 7.5 | 7.5 | 10 | 10 | 10 | 15 | 10 | 10 | 15 |
2 | 45 | 10 | 15 | 25 | 20 | 25 | 40 | 20 | 25 | 40 |
3 | 90 | 25 | 30 | 50 | 40 | 50 | 75 | 40 | 50 | 75 |
4 | 135 | 40 | 50 | 100 | 75 | 75 | 150 | 60 | 75 | 150 |
5 | 270 | 75 | 100 | 200 | 150 | 150 | 350 | 150 | 150 | 300 |
6 | 540 | 150 | 200 | 400 | 300 | 600 | 300 | 350 | 700 | |
7 | 810 | 300 | 600 | 450 | 900 | 500 | 500 | 1,000 |
Single Phase Motors
NEMA Size | 115 Volts | 230 Volts |
00 | 1/3 | 1 |
0 | 1 | 2 |
1 | 2 | 3 |
2 | 3 | 7.5 |
3 | 7.5 | 15 |