Direct-On-Line Starter Calculator

Quickly size contactors & overloads for induction motors.

Motor data input

Phase Type

Power

Voltage Type

Voltage

Efficiency

Power Factor

Cos θ

Calculation Results

Full-Load Current

i_FLC (A)

Contactor Rating

AC-3 duty (min)

Overload Setting

Recommended (A)

Disclaimer: This calculator provides approximate values for planning purposes only. Always verify results against relevant standards and consult a licensed electrical professional before installation.