General description AlwaysH 6 Pairs MC4 Male/Female Double Rings Waterproof Seal Solar Panel Cable Connectors are designed for easy and quick installation. These connectors are waterproof and dustproof, making them suitable for outdoor use in all weather conditions. The self-locking mechanism ensures a secure connection, specifically tailored for solar photovoltaic systems that require high mechanical strength and can withstand extreme weather conditions. Technical specifications Rated voltage: 1000V DC Rated current: 25A (for 2.5-4.0mm² cables) Protection degree: IP2*/IP67 Flammability rating: UL94-V0 Test voltage: 6000V (50Hz, 1min) Safety: Class 2 Overvoltage Category/Pollution Index: CATIII/2 Connector Contact Resistance: 0.5m Insertion force: ≤ 50 N Remove force: ≥ 50 N Connector conductor material: copper, tin Connection method: crimp Connector insulating material: PPO or PBT Operating temperature range: -40 ~ +90° Compatible with cable sizes: 2.5mm²/4mm²/6mm² (AWG 14/12/10)