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. Features: Comes with 1 male to 2 female (MFF) and 1 female to 2 male (FMM). Standard MC4 connectors with self-locking key allow for easy and instant installation. O-ring is perfect for sealing water and dust to prevent corrosion. High and low temperature resistance and waterproof. Features: Insulation material: PPO Rated current: 30A Rated voltage: 1000V DC Test voltage: 6KV (50Hz, lmin). Typical contact resistance: 5m Contact material: Copper, tin plated Protection grade: IP67 Protection class: Flame Class: UL94-V0 or UL94-5VA Temperature range: -40C ~ +90C Size (1 piece): 108 * 45 * 20 mm Weight (1 piece): 53g / 1.86oz. Package Weight: 108g / 3.81oz Package List: 1 * Pair of MC4 Y Branch Connectors p> Package List: 1 * Pair of MC4 Y Branch Connectors