20A in-line Diode Connector Solar Panel cable ConnectorsPractical and easy connector used between Solar panel and switch box to prevent the reversal of current Contacts for the connector are copper, coated with tin for easy solder adhesion Each end nuts comes with rubber bushings for air tightening This connector is rated as IP67 IP (Ingress Protection) ratings the first numeral refers to the level of dust resistance and the second numeral refers to the level of water resistance Specification:Connector Material: PPO,PCDegree of protection:IP67Rated current :20AFlame class :UL94-V0Rated voltage: 1000V(TUV)&600V(UL)Test voltage: 6kV(50Hz,lmin)Insertion force/withdrawal force: Less than equal 50N/ Greater than equal 50Npin dimensions: F4 0mmConnecting System: Crimp connectionContact resistance of plug connector: Less than equal 5mOhmTemperature range: (-40 Celsius - 85 Celsius)Contact material: Copper, Tin platedHighest Temperature: 110 CelsiusInsulation material: PPOPackage:4 x PV Diode connectorOnly the above package content, other products are not included Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing The measurement allowed error is +/- 1-3cm