CYLX-PV intelligent photovoltaic lightning protection combiner box is to combine the DC input and confluence of 24 photovoltaic cell module strings into one or more outputs, each channel is equipped with a fuse, and the output is equipped with a lightning protection device and a. CYLX-PV intelligent photovoltaic lightning protection combiner box is to combine the DC input and confluence of 24 photovoltaic cell module strings into one or more outputs, each channel is equipped with a fuse, and the output is equipped with a lightning protection device and a. Our DC combiner boxes offer users the possibility to integrate short-circuit and overvoltage protection, as well string monitoring solutions (I,V, T and SPD and switch isolator status), for PV systems using central inverters with PV panels in trackers and fix tilt systems. Weidmüller has a proven. ciency, reliability and safety in solar energy systems. They enable centralized management in large-scale and remote installation ity), equipment aging, and poor installation practices. This simplifies the input wiring of DC distribution cabinets and. The SI-CD series PV combiner box is used to connect a number of photovoltaic panels with the same specifications into photovoltaic series, and then these series are connected in parallel to the box.