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Motor Full Load
Current Calculator

Calculate motor FLC, recommended breaker, cable size, overload setting, and starter type based on AS/NZS 3000 motor tables.

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Calculate Motor FLC

Motor Details

Why Use This Calculator

Free — no signup required
AS/NZS 3000 compliant
Supports single and three phase
Recommends breaker, cable, and overload
Motor FLC tables built in
Works on mobile

FAQ

What is motor FLC?

FLC is the maximum current a motor draws at full rated load. It is used to size cables, breakers, and overload protection per AS/NZS 3000.

What size breaker for a 7.5kW motor?

A 7.5kW three-phase motor at 400V has an FLC of approximately 16A. The breaker should be rated at 250% of FLC, so a 40A breaker is typically used.

What overload setting?

Overload protection is typically set at 105-125% of the motor FLC. For a 16A FLC motor, the overload would be set around 18.4A.

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