Motor Startup Current Calculator

Motor Startup Current Calculator calculator can be used to calculate the startup current of a motor based on its rated current and power factor.

Input Parameters

Calculation Results

Startup Current (A):

Calculation Formula

Startup Current = Rated Current / Power Factor

Where:
Rated Current: The rated current of the motor in amperes (A)
Power Factor: The power factor of the motor (between 0 and 1)

Motor Startup Current Calculator Calculator Usage Guide

Learn how to use the Motor Startup Current Calculator calculator and its working principles

How to Use the Calculator

  1. Enter the rated current of the motor in amperes (A) in the "Rated Current" field.
  2. Enter the power factor of the motor (between 0 and 1) in the "Power Factor" field.
  3. Click the "Calculate" button to compute the startup current.
  4. The startup current will be displayed in the "Startup Current" field.

Working Principle

The startup current of a motor is the current drawn by the motor when it is first turned on. It is typically higher than the rated current due to the motor's inrush current. The startup current can be calculated using the formula:

Startup Current = Rated Current / Power Factor

This formula assumes that the motor is operating under steady-state conditions and that the power factor remains constant during startup.