Wire Size Calculator (NEC Ampacity) | SparkAlpha

NEC ampacity and conductor sizing calculator

Load Information

Load Current

A

Continuous Load

Conductor Properties

Conductor Material

Insulation Type

Terminal Rating

Installation Conditions

Ambient Temperature

°C

Conductors in Conduit

count

Results

Adjusted Current20.00 A

Temperature Factor100 %

Fill Adjustment100 %

Required Ampacity20.00 A

Minimum Wire Size12 AWG

Wire Ampacity20 A

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