1. MC4 branch connectors are used for parallel connection of solar panels (photovoltaic modules). These connectors are only compatible with MC4 connectors and come with one male connector (MMF) and one female connector (FFM). Use these MC4 Y-branch connectors to make watertight and waterproof connections. 2. Features: 3. Comes with 1 male to 2 female (MFF) and 1 female to 2 male (FMM). 4. Standard MC4 connectors with self-locking key allow for easy and instant installation. 5. O-ring is suitable for sealing water and dust to prevent corrosion. 6. High and low temperature resistance and waterproof. 7. Features: 8. Insulation material: PPO 9. Rated current: 30A Rated voltage: 1000V DC 10. Test voltage: 6KV (50Hz, 1min). Typical contact resistance: 5m 11. Contact material: Copper, tin plated 12. Protection grade: IP67 13. Protection class: Flame Class: UL94-V0 or UL94-5VA 14. Temperature range: -40°C ~ +90°C 15. Size (1 piece): 108 * 45 * 20 mm 16. Weight (1 piece): 53g / 1.86oz. Package Weight: 108g / 3.81oz 17. Package List: 18. 1 * Pair of MC4 Y Branch Connectors 19. Package List: 20. 1 * Pair of MC4 Y Branch Connectors