2 Pcs DC Miniature Circuit Breaker 2P 63A 500V 4500A Breaking Capacity Solar Mini Circuit Breaker for PV System 1[Reliable Protection] This DC miniature circuit breaker offers reliable protection against overloads and short circuits, with a breaking capacity of 4500A, ensuring the safety of your electrical circuits. 2[High Safety] When there is a short circuit in the circuit, this circuit breaker can immediately trip, effectively safeguarding the circuit and preventing potential hazards. 3[PC Shell] This DC circuit breaker features a PC flame retardant shell, providing an extra layer of safety. More security measures for household electricity use. 4[DIN Rail Mount] With its convenient design, this circuit breaker can be easily and securely installed on DIN rail, saving time and effort during installation. 5[Versatile Usage] Suitable for various applications including photovoltaic systems, combiner boxes, small power generation system, and more. This DC miniature circuit breaker is a reliable choice for ensuring electrical safety and protection.