Feature 1 [Built in Circuit Breaker] This PV combiner box has built in DC500V 32A 2P circuit breaker, which adopts flame retardant shell, silver contact, and copper coil, ensuring excellent performance. 2 [Surge Protection] Equipped with DC500V 20 to 40kA 2P surge protector, which utilizes standard lightning protection chips instead of varistors, providing a safe and reliable surge protection. 3 [Safe and User Friendly] The combiner box is made of PC flame retardant housing, with IP65 waterproof and dustproof protection, UV resistant, designed with a transparent observation window for easy inspection. 4 [2 Installation Methods] The combiner box can be easily connected to the solar panel using solar connectors for faster and safer installation, or it can be directly wired using waterproof connectors and terminals. 5 [Wide Applications] Suitable for both grid connected and off grid photovoltaic solar panel systems, solar power systems, photovoltaic arrays, and RV solar systems.Item Type: PV Combiner BoxMaterial: PC Flame Retardant, Silver, Red CopperWaterproof Grade: IP65Circuit Breaker Information:Rated Current: 32ARated Voltage: DC500VIcu: 6KASurge Protector Information:In: 20KAImax: 40KAUc: DC500VUp: 2KV Package List1 x PV Combiner Box4 x Screw4 x Anchor4 x Connector (2 Male 2 Female Connector)4 x Connector Core1 x Photovoltaic Special Wrench