ln solar photovoltaic power generation system, DC combiner device should be added between PV module and inverter in order to reduce the connection between PV module and inverter, to facilitate maintenance and to improve reliability for large-scale photovoltaic grid- connected power generation system. The user can combine a certain number of PV modules with the same specifications in series into a PV modules string within the DC voltage range inputted by the inverter, and then connect a number of strings into the photovoltaic combiner box for convergence,then output to the inverter through lightning protective device and circuit breaker, which simplify the system wiring and improve the security of the system.1.Meet the requirements of outdoor installation; 2.16 channels of solar battery can be connected at the same time, current of each channel can be up to 10A; 3.Equipped with a high-voltage lightning protective device especially for PV power, both the positive and negative have lightning protection function; 4.Four-pole circuit breaker which positive and negative are connected in series separately can increase DC voltage to not less than DC1000V.
