20A in-line diode connector solar panel cable connectors Practical 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 nut comes with rubber bushings for air tightening This connector is rated IP67; the first digit indicates dust resistance and the second digit indicates water resistance Connector material: PPO, PC Degree of protection: IP67 Rated current: 20A Flame rating: UL94-V0 Rated voltage: 1000V (TUV), 600V (UL) Test voltage: 6kV (50Hz, 1min) Insertion force/withdrawal force: 50N / 50N Pin diameter: 4.0mm Connecting system: Crimp connection Contact resistance of plug connector: 5mOhm Temperature range: -40C to 85C Contact material: Copper, tin plated Maximum temperature: 110C Insulation material: PPO Package includes: 1 x PV diode connector Content limited to the above; other items not included Note: Lighting and display differences may cause slight color variations between image and actual item Measurement tolerance: 1-3cm