Horsepower (HP) is a unit of power commonly used to measure the output power of motors.
HP = (Volts * Amps * Efficiency * Power Factor) / 746
The motor speed calculation is based on the following formula:
Motor Speed (RPM) = (Frequency (Hz) * 60) / Number of Poles
kVA (kilovolt-ampere) is a unit of apparent power commonly used to size electrical equipment.
kVA = (Volts * Amps) / 1000
kW (kilowatt) is a unit of real power commonly used to measure the power output or consumption of electrical devices.
kW = (Volts * Amps * Power Factor) / 1000
Amps (Amperes) is a unit of current.
Amps = (kW * 1000) / (Volts * Power Factor)
Amps (Amperes) is a unit of current.
Amps = (kVA * 1000) / Volts
Amps (Amperes) is a unit of current.
Amps = (HP * 746) / (Volts * Efficiency * Power Factor)
Motor Rating (HP) | CURRENT (A) | 208V | 230V | 460V | 575V |
---|---|---|---|---|---|
1/4 | 1.11 | .96 | .48 | .38 | |
1/3 | 1.34 | 1.18 | .59 | .47 | |
1/2 | 2.4 | 2.2 | 1.1 | .9 | |
3/4 | 3.5 | 3.2 | 1.6 | 1.3 | |
1 | 4.6 | 4.2 | 2.1 | 1.7 | |
1 ½ | 6.6 | 6 | 3 | 2.4 | |
2 | 7.5 | 6.8 | 3.4 | 2.7 | |
3 | 10.6 | 9.6 | 4.8 | 3.9 | |
5 | 16.7 | 15.2 | 7.6 | 6.1 | |
7 ½ | 24.2 | 22 | 11 | 9 | |
10 | 30.8 | 28 | 14 | 11 | |
15 | 46.2 | 42 | 21 | 17 | |
20 | 59.4 | 54 | 27 | 22 | |
25 | 74.8 | 68 | 34 | 27 | |
30 | 88 | 80 | 40 | 32 | |
40 | 114 | 104 | 52 | 41 | |
50 | 143 | 130 | 65 | 52 | |
60 | 169 | 154 | 77 | 62 | |
75 | 211 | 192 | 96 | 77 | |
100 | 273 | 248 | 124 | 99 | |
125 | 343 | 312 | 156 | 125 | |
150 | 396 | 360 | 180 | 144 | |
200 | 528 | 480 | 240 | 192 | |
250 | -- | -- | 302 | 242 | |
300 | -- | -- | 361 | 289 | |
350 | -- | -- | 414 | 336 | |
400 | -- | -- | 477 | 382 | |
450 | -- | -- | 515 | 412 | |
500 | -- | -- | 590 | 472 |
HP | DC Motors | Single Phase AC Motors |
---|---|---|
1/6 | 3.1 | |
1/4 | 4.1 | |
1/3 | 5.4 | |
1/2 | 7.6 | |
3/4 | ||
-- | 1.6 | 2.4 |
-- | 2.0 | 2.9 |
-- | 2.7 | 3.6 |
-- | 3.8 | 4.9 |
-- | 6.9 | |
1 | 9.5 | |
1 ½ | 13.2 | |
2 | 17 | |
3 | 25 | |
5 | 40 | |
9.5 | 4.7 | |
13.2 | 6.6 | |
17 | 8.5 | |
25 | 12.2 | |
40 | 20 | |
-- | ||
-- | 16 | |
-- | 20 | |
-- | 24 | |
-- | 34 | |
-- | 56 | |
8.8 | ||
11 | ||
13.2 | 29 | |
18.7 | 38 | |
30.8 | 55 | |
8 | 72 | |
10 | 89 | |
12 | 12.2 | |
17 | 16 | |
28 | 24 | |
80 | 31 | |
100 | 38 | |
-- | 44 | |
-- | 55 | |
-- | ||
-- | 106 | |
-- | 140 | |
-- | 173 | |
-- | 206 | |
-- | 255 | |
46 | 148 | |
61 | 185 | |
75 | 222 | |
90 | 294 | |
111 | ||
-- | ||
-- | ||
-- | 341 | |
-- | 425 | |
-- | 506 | |
-- | 675 | |
148 | 185 | |
185 | 222 | |
222 | 294 | |
294 | ||
-- |