Features 1LIGHTNING PROTECTION: Solar combiner box with solar DC disconnect 10A fuse and fuse box 63A circuit breaker and lightning arrester lightning protection. 2PLUG AND PLAY: 4 string solar combiner box with pre connected cables very sturdy storage box to combine your solar panels making it easier to connect your solar panel system. 3NOTE FOR USE: 4 string PV combiner box can be connected to the combiner box as long as the current and voltage of the individual PV does not exceed 10A 250Vdc. 4EASY TO INSTALL: 4 string solar combiner box with mounting clips no key required to open and close the box very easy to use waterproof IP65 rating suitable for any conventional cover. 5PROTECTION: PV combiner box is equipped with PV special high voltage lightning arrester and 15A fuse and circuit breaker to provide short circuit fault protection and lightning protection We use 10AWG solar panel wire. Specification Item Type: Solar Combiner BoxMaterial: PCConnected PV Arrays ( Maximum Number): 4Single PV Array Input Current ( Maximum): 10ATotal Input Current of PV Array: 40AMaximum Input Voltage of Single PV Array: 250VTotal Maximum Input Voltage of Photovoltaic Array: 1000VProtection Level: IP65Operating Ambient Temperature: 30 to +70Relative Humidity: 095%Cooling Mode: Natural CoolingSurge Lightning Protection: Yes Package List 1 x SolarCombinerBox1 x Combination Lock4 x Fixed Piece4 x Screw1 x Wrench1 x Instruction Manual Note For example if using 195W 12V eco friendly solar panel it can support up to 780W solar panel system in 12V system 1560W in 24V system and 3120W in 48V system.