Current Amps 120 240 Volt Dc Motors
Reference data and engineering information about current amps 120 240 volt dc motors for electrical applications.
currentamps120240
Overview
Engineering reference data for Current Amps 120 240 Volt Dc Motors in electrical engineering.
Key Formulas
Ohm's Law
Voltage = Current × Resistance.
Power
Electrical power.
Energy
Energy = Power × Time.
Variables
| Symbol | Description | Unit |
|---|---|---|
| Voltage | V | |
| Current | A | |
| Resistance | Ω | |
| Power | W |
Full-Load Current Data Table
The following table provides the approximate full-load currents for common DC motor ratings at 120V and 240V. This data is essential for circuit design, conductor sizing, and overcurrent protection selection.
18 rows
Motor Rating(hp) | Current @ 120V(amps) | Current @ 240V(amps) |
|---|---|---|
| 1/4 | 3.1 | 1.6 |
| 1/3 | 4.1 | 2 |
| 1/2 | 5.4 | 2.7 |
| 3/4 | 7.6 | 3.8 |
| 1 | 9.5 | 4.7 |
| 1 1/2 | 13.2 | 6.6 |
| 2 | 17 | 8.5 |
| 3 | 25 | 12.2 |
| 5 | 40 | 20 |
| 7 1/2 | 48 | 29 |
| 10 | 76 | 38 |
| 15 | 110 | 55 |
| 20 | 144 | 72 |
| 25 | 178 | 89 |
| 30 | 212 | 106 |
| 50 | 346 | 173 |
| 75 | 510 | 255 |
| 100 | 682 | 341 |
Source: engineeringtoolbox.com
Power Conversion Note
A common and important conversion for DC motor analysis is:
This relationship is useful when comparing motor ratings or performing power calculations in SI units.