Three Phase Amp Calculator

Three phase power is widely used in industrial and commercial settings due to its efficiency and reliability. The three phase amp calculator is an essential tool for electrical engineers, technicians, and designers to determine the current in a three phase circuit.

1. Enter the voltage and power values.
2. Select the frequency (50 Hz or 60 Hz).
3. Click ‘Calculate’.

The calculator uses the formula: I = P / (√3 * V * cos(θ) * sin(θ)), where:

• I is the current in amps (A),
• P is the power in watts (W),
• V is the voltage in volts (V),
• θ is the power factor angle (assumed to be 1 for this calculator).

Comparison of Three Phase Currents at Different Voltages and Powers

Voltage (V)	Power (W)	Frequency (Hz)	Current (A)

Comparison of Three Phase Currents at Different Frequencies

Voltage (V)	Power (W)	Frequency (Hz)	Current (A)

• Always consider the power factor when calculating real-world scenarios.
• Use this calculator to ensure your electrical equipment is within its rated current capacity.

What is the difference between single phase and three phase power?

Single phase power has one hot wire and one neutral wire, while three phase power has three hot wires and one neutral wire. Three phase power is more efficient and can handle more power.

Learn more about three phase power from the U.S. Department of Energy

Understand three phase power from Engineering ToolBox