What is Inrush Current?

Definition

The initial surge of current drawn when a motor, transformer, or capacitor bank is first energised. Inrush current can be 6 to 10 times rated current and must be managed with soft starters, drives, or current-limiting devices.

Related Terms

Soft Starter

A device that gradually ramps up voltage to a motor during starting, reducing in...

DOL Starter

Direct-On-Line starter — the simplest motor starting method that applies full ma...

Circuit Breaker

An automatic switching device that interrupts current flow when an overcurrent o...

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