PV electrical basics
Industry Term

Inrush Current

Inrush current is the brief surge of current that can occur when equipment is first energized.
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What does Inrush Current mean?

Inrush current is the brief surge of current that can occur when equipment is first energized.

How is Inrush Current used in solar design?

This term affects electrical design, string sizing, code checks, equipment ratings, and safe installation. In solar, the numbers are not decoration; they are the guardrails.