Full Load Current Calculator

How to Use This Calculator

1. Enter the power rating of your electrical equipment in kilowatts (kW).
2. Enter the operating voltage in volts (V). For standard applications, this would typically be 120V, 240V, 480V, or a value specific to your equipment.
3. Enter the power factor (PF) of your equipment. This is a dimensionless number between 0 and 1 that represents the ratio of real power to apparent power. A higher power factor indicates more efficient power usage.
4. Click the "Calculate" button to compute the full load current.
5. The calculator will display the full load current in amperes (A).

What is Full Load Current?

The full load current (FLC) is the maximum current that an electrical device or machine is designed to carry under normal operating conditions. It's an important parameter for selecting appropriate circuit breakers, fuses, and conductors in electrical systems.

Calculation Formula

The calculator uses the following formula to calculate full load current:

I_FL = P / (√3 × V × PF)

Where:

• I_FL = Full Load Current (amperes)
• P = Power (kilowatts)
• V = Voltage (volts)
• PF = Power Factor

Example

For a 5 kW motor operating at 240V with a power factor of 0.85, the full load current would be:

I_FL = 5 / (1.732 × 240 × 0.85) ≈ 16.67 A

This means you would need electrical components rated to handle at least 16.67 amperes to safely operate this motor.