DC combiner box, also known as solar combiner box, solar photovoltaic combiner box, photovoltaic array lightning protection combiner box, solar power generation combiner box, photovoltaic power generation combiner box, photovoltaic lightning protection combiner box. The DC combiner box is mainly used in the solar photovoltaic power generation system to input and connect the multi-channel output cables of the solar cell module array in a centralized way, so that the wiring is orderly and convenient for grouping inspection and maintenance. When the solar cell array fails locally, it can be repaired locally, without affecting the continuous work of the overall power generation system.
Characteristics of DC combiner box
1. Multiple solar photovoltaic arrays can be connected at the same time, and the maximum current of each circuit can reach 15a, which can meet the needs of different users;
2. Equipped with solar photovoltaic DC high-voltage lightning arrester, both positive and negative poles have dual lightning protection functions;
3. Adopt professional DC high-voltage circuit breaker, with DC withstand voltage not less than DC1000V, safe and reliable;
4. The lightning counting function is convenient to understand the intrusion and frequency of lightning disasters;
5. With working state indication, it is convenient to observe the working condition;
6. Equipped with high-voltage DC fuse and circuit breaker, a total of two-level safety protection devices;
7. Configure sensors and monitoring display modules to measure and monitor the current of each circuit, which can record and display the operation status remotely without going to the site;
8. The protection grade reaches IP65, meeting the use requirements of outdoor installation;
9. Simple and convenient installation and maintenance, long service life.
Functions of DC combiner box
1. The protection grade of the combiner box reaches IP65, which is waterproof, ash proof, rust proof and salt fog proof, and meets the requirements of outdoor installation
2. Up to 24 battery trains can be connected at the same time
3. The positive and negative poles of each battery string are equipped with photovoltaic fuses to protect the module string in case of failure. The fuse base and fuse are used together to reduce the later maintenance cost of the owner and effectively protect the maintenance personnel.
4. The photovoltaic high-voltage lightning arrester can protect the positive pole to the ground and the negative pole to the ground of the bus after convergence, and the continuous working voltage (UC) can reach 1000VDC.
5. The power module in the combiner box can be connected with photovoltaic voltage not greater than 1500dcv
6. The working power supply of the combiner box can be 220vac/dc from the outside or the power supply provided by the combiner box itself. If the power supply is provided by the combiner box itself, there is no need for separate wiring for the power supply on site.
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