Enphase Q Raw Cable uses which conductor size?

• A. #14 AWG
• B. #12 AWG
• C. #10 AWG
• D. #8 AWG

Answer: (B)

The size is chosen to safely carry the maximum expected current in the Q Raw Cable while staying practical for rooftop wiring. In Enphase Q systems, the string current that the cable must handle is typically around 20 amps per circuit. A 12 AWG conductor can carry that amount comfortably with PV-rated insulation and at the system’s voltage, providing a good balance of ampacity, flexibility, and cost. Using a smaller wire, like 14 AWG, would be undersized for a 20-amp circuit and could overheat over time. Heavier conductors, such as 10 or 8 AWG, aren’t necessary for the usual currents and would add unnecessary stiffness and expense. So, 12 AWG is specified because it meets the required current capacity without being excessive, while also aligning with the common voltage rating needs of a PV installation. Always verify with the Enphase installation manual for the exact rating and insulation requirements.