These are connectors which are used to connect multiple solar panels or groups of solar panels together in a solar field, and typically used in parallel applications. Features: With excellent aging resistance and UV endurance, it can be used in harsh environment. The O ring on connector is perfect to seal out water and dust to prevent corrosion. Cable connection adopts method of rivet and lock, quick & simple for assembly. Great solution for parallel connection of multiple panels together in a solar field. Specifications: Types: 10 Pairs / 20 Pairs / 10 Pairs without Spanner / 20 Pairs without Spanner / 5 Pairs without Spanner (Optional) Rated Current: 16A(2.5㎡, AWG14), 30A(4㎡, AWG12), 52A(6㎡, AWG10) Withstanding Voltage: 1000V DC Typical Contact Resistance: 2mΩ Suitable Cable Size: 2.5m㎡/4m㎡/6m㎡ Protection Class: Class Ⅱ Protection Degree: IP67 Insulation Material: PPO Contact Material: Copper, Tin Plated Flame Class: UL94-V0 Ambient Temperature Range: -40°C ~ +105°C Insertion Force: less than 50N Withdrawal Force: over 50N Note: If you ordered the type that includes Spanner, the color of spanner will be sent randomly(blue or orange), please in kind prevail. Package List: 20 * Pairs Connectors