Description MC4Y B2 Solar Panel Y Type 1 to 2 MC4 Connectors M FF and F MM Branch Cable MC4 Solar Panel ConnectorFeatures For connecting solar panels Compatible with MC4 connector Sturdy and durable Cable length 32cmWorking current 20A 4mm 30A 6mm Withstand voltage DC1000VContacting resistance 2 mInsulation resistance 500MSuitable single core cable section 2 5mm 4mm 6mmCable outer diameter 5mm 7mmAmbient temperature 40 105℃Protection class IP67Safety class IIShell material PPOContacting material Copper tin platedTerminal connecting method Pressure WeldingPackage included 1 x MC4Y B2MC4 Solar Panel ConnectorDetails pictures