The AC termination cable is used to connect the first APsystems microinverter in the branch circuit to the AC junction box. The 6ft long cable features an APS connector in the end connecting to the microinverter and bare wire in the end connecting to the junction box. Inside the UV resistant jacket there are 3 (red, black and white) 12WAG conductors. The type TC-ER cable is UL certified rated for 600V. Once cable is requiered for each branch circuit. A maximum of 7 dual YC5000A microinverters (or 14 solar panels) can be connected in one branch circuit.