Description: MC4 Cable Connectors are made with highest quality materials These connectors are also waterproof and resist dust build up These connectors are designed to complete a solar panel (PV) array, typically in parallel applications This connector is specifically designed for connecting photovoltaic solar systems with high mechanical requirements and extre weather conditions Used for permanent installation. Specification: Material: plastic Docking size: about 102mm Rated current: 30A Maximum voltage: 1000VDC Wiring size range: 10,12 AWG Contact resistance: