According to the above requirements, photovoltaic DC combiner boxes can be divided into two types: ordinary type and intelligent type. Among them, the ordinary photovoltaic DC combiner box has basic functions such as lightning protection and convergence, and the main equipment configured includes DC fuses , DC circuit breakers, lightning protection devices and other components. In addition to the basic functions of lightning protection and convergence, the intelligent photovoltaic DC combiner box can also monitor the operation of the photovoltaic array in real time, determine the faulty photovoltaic string, and locate and alarm it, and send alarm messages to the monitoring system through the communication interface of the device. The intelligent photovoltaic DC combiner box adds elements such as intelligent monitoring modules on the basis of the ordinary type. Smart photovoltaic DC combiner box is a kind of intelligent equipment for monitoring photovoltaic cell series, and it is a new type of equipment produced with the large-scale application of photovoltaic power generation. The following describes the functions and selection of the main originals.

　　DC FUSE

　　IS to Effectively Break the Fault Photovoltaic Cell with Affecting the Operation of Other Normal Working Photovoltaic Cell Series.

　　Of Photovoltaic Cell Components have an important interniational technical measure.

　　Circuit Current.

　　DC CIRCUIT Photovoltaic DC Circuit Breaker Brand Breaker