AC Solar PV Integration AC Solar PV Integration covers NEC 705 interconnected electric power production sources, UL 1741 listed inverter requirements, and detailed installation steps for PV breakers, conductor landing, CT installation with proper orientation and routing, plus verification and commissioning procedures.
Code Reference (NEC) NEC 705 – Interconnected Electric Power Production Sources NEC 690.12 – Rapid Shutdown (PV-side, inverter dependent) NEC 705.12 – Load-side interconnections NEC 110.3(B) – Installation per listing and instructions Requirements UL 1741 SA listed inverter PV breaker ≤ 100A Utility interconnection approval completed Installation Steps Install the PV Breaker Install the PV breaker in the designated AC-PV breaker slot Do not relocate or substitute breaker positions Land Inverter Conductors
Terminate inverter output conductors at the PV breaker Verify conductor sizing per inverter specifications Torque terminals to manufacturer requirements Install PV CTs Install PV CTs on the inverter output conductors Use only the provided or approved CTs CT Orientation Orient CT arrows toward the Smart Panel Ensure CTs are fully closed and latched CT Lead Routing Route CT leads through the low-voltage channel only Do not run CT wiring alongside high-voltage conductors Verification and Commissioning Checks App Verification Confirm PV production is visible in the Kora app Electrical Verification Validate CT polarity Verify no overcurrent conditions Installation Solar Current Transformer (CT) NEC Code Commissioning
