These MC4 Y branch compatible connectors are designed for connecting solar panels between solar panels and extension, providing a perfect solution for connecting multiple panels in parallel within a solar field. They are generally used in parallel applications. Features: Y branch MC4 solar panel cable connectors, suitable for PV systems. The O-ring is perfect for sealing out water and dust to prevent corrosion. Compatible with PV cables with different insulation diameters. With excellent aging resistance and UV resistance, they can be used in harsh environments. High and low temperature resistance and flame retardant. High current and high voltage load capacity. Quick and simple assembly and easy removal of plugs without the need for an extra tool. Excellent solution for connecting multiple panels in parallel within a solar field. Specifications: Type: MFF+FMM / MFFF+FMMM / MFFFF+FMMMM (Optional) Insulation Material: PPO Rated Current: 30A Rated Voltage: 1000V DC Test Voltage: 6KV (50Hz, 1min) Typical Contact Resistance: 5mΩ Contact Material: Copper, tinned Protection Degree: IP67 Safety Class: Ⅱ Flame Retardant Class: UL94-V0 Material RTl: 110°C Ambient Temperature: -40°C ~ +85°C Wire Size: 2.5mm² / 4mm² / 6mm² Package Weight: 124g-338g / 4.4oz-11.95oz Package List: 1 * Pair of Y branch MC4 connectors