50' Multi-Contact (MC) Connector 50' #10 AWG male/female with label The components of the MC plug connector systems for PV are designed to permit timesaving, dependable series cabling of PV modules which are integrated into buildings or are stand alone arrays. MC plug connector system allows for the PV arrays to be pre-assembled and pre-wires in the shop or on site. Then the completed arrays can be installed quickly by skilled construction workers.