Fast Response: Highly sensitive operating mechanism with the lowest moment of inertia, ensuring a very short time from short-circuit fault to tripping action. Dual Protection: The tripping mechanism features a double silver-plated overload inverse time tripping mechanism and an instantaneous electromagnetic short-circuit mechanism, providing both overload and short-circuit protection. Efficient Arc Extinguishing: The contact arc extinguishing system utilizes a special pilot arc angle and passage chamber, offering remarkable current-limiting capabilities. PC Shell: The shell is constructed from special PC plastic with high flame retardancy and strength, ensuring strong impact resistance and light weight. Wide Application: Modular structure with standard 36mm DIN rail installation, this circuit breaker is easy to install and widely applicable to DC power supply systems, ship power supply systems, solar photovoltaic systems, or other DC systems. Item Type: DC Circuit Breaker Material: PC, Silver Rated Voltage: DC 500V Rated Ultimate Short Circuit Breaking Capacity (Household Icn): 10KA Mechanical Lifespan: 20000 times Applicable Temperature: -35℃ to +70℃ Installation: Standard 36mm guide rail installation 1 x DC Circuit Breaker