HQRP Pair MC3 4mm2 line Solar Panel Connector Male & Female (M&F) for PV/Photovoltaic System Plus Coaster HQRP&reg; Pair MC3 4mm2 Line Connectors plusl HQRP&reg; Coaster; Withstanding Voltage: DC 600V; Contactl resistance: 500MO; for single-corel cable cross-section: 4mm2; Protection grade: IP67; Security level: II; 1 Year warranty!