Feature:1. Multifunctional: This PV combiner box has PV array input, first level combination, quick cut circuit, thunder protection, anti reverse connection, overload, etc.2. Overload Protection: The box has 8 individual 15A rated fuses built in. The maximum current for a single PV input array is 15 A. The function is overload protection. The box defends PV solar panels and inverters.3. Increase Output Power: The PV combiner box will reduce the length of cables connected from the panel to the inverter, optimizing system instructions to make the system more useful and maintainable. Will enable the PV power system to increase the output power.4. Control Output: 125A circuit breaker can provide short circuit fault protection and control the output of the combiner box. Surge protection device provides protection. Green indicates normal, once it turns red, remember to replace it promptly.5. Cold Rolled Steel: Our PV combiner box is suitable for grid connected or off grid solar systems, safe and reliable. Cold rolled steel metal box with IP65 waterproof rating. durable metal box makes it more suitable for outdoor RV use and home solar panel installation.Specification:Item Type: PV Combiner BoxModel: LT PV04Material: Cold Rolled SteelWorking Voltage Range (V): 100-1000VMaximum Input DC Voltage (V): 1000VMaximum Output DC Current (A): 125AMaximum Input Current Of Branch Circuit (A): 15ANumber Of Input Branches: 4Crossing Sectional Area Of Each Wire: 4Input And Output Port Insulation Resistance To Ground: Insulation Resistance 20MCommunication Interface: RS485Installation Mode: Indoor And Outdoor, Wall MountedProtection Level: IP65Ambient Temperature: -25-55Relative Humidity: 0 To 95%Maximum Altitude: 3500m LevelSurge Protector: In: 20kA, Imax: 40kA, UP: 3.2kVSPD Indicator Status: Green Normal, Red TriggerCircuit Breaker Parameters: DC1000V, 125AFuse Parameters: DC1000V,15A, Fuse Size: Approx. 10 x 38mm / 0.39 x 1.5inFuse Holder Parameters: DC1000V, 32ABox Size (Excluding The Protruding Part): Approx. 450 x 450 x 182mm / 17.72 x 17.72 x 7.17in(L x W x H)Cooling Mode: Natural CoolingSurge Thunder Protection: Yes.Package List:1 x PV Combiner Box(Shipping With 2 Keys)