Description These are MC4 type connectors used to connect multiple solar panels or groups of solar panels in a solar field, and generally used in parallel applications. Features: With excellent aging resistance and UV resistance, it can be used in harsh environments. The O-ring on the connector is ideal for sealing out water and dust to prevent corrosion. The cable connection adopts the rivet and lock method, which is quick and easy to assemble. Excellent solution for parallel connection of multiple panels in a solar field. Specifications: Types: 10 pairs / 20 pairs / 10 pairs keyless / 20 pairs keyless / 5 pairs keyless (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 2 Protection Degree: IP67 Insulation Material: PPO Contact Material: Copper, Tinned Flame Rating: UL94-V0 Ambient Temperature: -40°C ~ +105°C Insertion Force: Less than 50N Withdrawal Force: More than 50N Note: If you ordered the type which includes Key, the color of the key will be sent randomly (blue or orange), please prevail in kind. Package List: 10 * Pairs MC4 Connectors