Feature: 1. Multi Function: The photovoltaic combiner box is applicable to your photovoltaic grid connected or off grid solar power generation system. This makes your solar panel system work reliably and safely. 2. 63A Circuit Breaker: Comes with a 63A circuit breaker, a surge protection device, it can provide short circuit protection and control the output of combiner box. 3. 15A Fuse: Built in 8 separate 15A fuses. The maximum current of a single photovoltaic input array is 15A. Their function is overload protection. 4. Easy Wiring: The internal wiring is safe, simple, easy to use and install, and the lock catch can defend your equipment. 5. Scope of Application: This combiner box is the perfect equipment for outdoor installation and use, which is suitable for RV solar system, 12V, 24V, 36V, 48VDC photovoltaic solar energy, etc. Specification: Item Type: PV Combiner Box Material: Polycarbonate, ABS Input: 4 Strings Output: 1 String Maximum Short Circuit Current (isc) of Each Input: 15A (replaceable) Maximum Current Input: 63A Protection Grade: IP65 Impact Resistance: IK10 Product Size: About Approx. 300 x 260 x 140mm / 11.81 x 10.24 x 5.51in (excluding protruding parts) Cable Inlet: PG09 2.5 to 6mm², 2.5 to 6mm² Output Current Ring: PG21 2.5 to 6mm², 2.5 to 6mm² DC Disconnector: LQL7 PV 63A Rated Current (Le): 63A DC Arrester: LD 40 Maximum Discharge Current: 40KA DC Fuse Holder: LQPV 1000VDC Fuse: Approx. 10 x 38mm / 0.39 x 1.5in 15A. Package List: 1 x PV Combiner Box1 x Manual 1 x Ground Wire1 x Wrench 4 x Screw4 x Expansion Tube 4 x Connector( Male x 2, Female x 2)4 x Core