Enphase IQ Microinverter AC Wiring Calculator

Voltage Rise & Branch Circuit Analysis  |  240V Split-Phase, 60 Hz  |  Grid-Tied Systems  |  Enphase Tech Brief TEB-00111-1.0
Project Information
Microinverter Strings
Combined Circuit - Combiner to Interconnection Point
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Resistance values from NEC Chapter 9, Table 9 (copper, 75°C, conduit). Ampacity from NEC Table 310.15(B)(16), 75°C, 3 conductors.

Calculation Results

Add at least one string to see results.

System Layout Diagram
Micro (PASS) Micro (WARN >1.75%) Micro (FAIL >2.00%) Q Cable (12 AWG) Branch Circuit (Home Run) Combined Circuit
Add strings to see the system diagram.
Engineering Schedule Output

Copy and paste this block into your engineering drawings or submittal documents. Monospaced, print-ready.