Feature: 1. Multi Protection: This PV combiner box has PV array input, first level combination, rapid circuit cut off, thunder protection, anti reverse connection protection and other functions. 2. 8 Fuses: The box has 8 internal independent 15A rated fuses. The maximum current of a single PV input array is 15A, which functions as overload protection. The box can defend PV solar panels and inverters. 3. Output Power Increasing: The PV combiner box will reduce the length of connecting cables from the panels to the inverter, optimizing the system indication and making the system more useful and easier to maintain. Will allow the PV power system to increase output power. 4. Surge Protection Device: 63A circuit breaker can provide short circuit fault protection and control the output of the busbar. Surge protection device provides protection. Green indicates normal, once it turns red, remember to replace it in time. 5. IP67 Waterproof: Our PV combiner box is suitable for grid connected or off grid solar system, safe and reliable. With IP67 waterproof rating. Compatible with various solar panels and batteries Specification: Item Type: PV Combiner Box Material: Polycarbonate, ABS Input: 4 Strings Output: 1 String Maximum Voltage: 1000V Maximum Short Circuit Current Per Input (Isc): 15A (Replaceable) Maximum Current Input: 63A Protection Level: IP67 Shock Resistance Degree: IK10 Size(Excluding Protruding Parts): Approx. 300 x 260 x 140mm / 11.81 x 10.24 x 5.51in Cable Input Inlet: PG09 2.5-6mm², 2.5-6mm² Output Current Sealing Ring: PG21 2.5-6mm², 2.5-6mm² DC Isolation Switch: DZ47 63Z Rated Insulation Voltage (Ui): DC1000V Rated Current (Le): 63A DC Arrester: NL PV40 Maximum Working Voltage (Ucpv): 1000V Maximum Discharge Current: 40KA DC Fuse Holder: ZYPV 32X Rated Working Voltage: DC1000V Fuse: 15A Fuse Size: Approx. 10 x 38mm / 0.39 x 1.5in. Package List: 1 x PV Combiner Box