For large scale grid-connected PV systems, a DC combining device will be installed in between the PV arrays and the inverters to minimize the cable length, increase the reliability and stability, and also for the ease of maintenance. Combiner Box is a standardized product developed to use with solar power system to provide a turnkey solution for PV power plants. Based on the DC input voltage range of the inverter, a quantity of the same PV strings can be connected to form a PV array. Then different PV arrays can input into the PV array combiner box, which including lightning protection devices and circuit breakers, to output a DC current for the inverter connection.
Applicable for outdoor PV systems
6 PV String inputs with maximum string current at 15A
Wide DC voltage input range with maximum open-circuit voltage up to1000v
With PV dedicated DC fuses with Maximum voltage not less than 1000V
SPD Lightning protection
1. A high voltage fuse provided for the counterattack prevention of each PV input array;
2. A special high-voltage lightning protection device for the PV module:
3. A special high-voltage circuit breaker for output control of the PV module:
4. A degree of protection of IP65 for meeting the need of outdoor installation
We are the experienced manufacturer of industrial electric products for years.Manhua Electric Co.,Ltd.
It was established in 2009 and domestic business started in 1980s.
At present, our main products are timer switches, timer, relay, sockets and surge arrestors.
This year, we have started to do more jobs on the electric products for solar and ofgrid solar powersystem.
Our products have exported to the market of Germany and USA since the year of 2005, and
till now the products have stable growing market in Germany, Spain,USA, South America, CIS
countries and Thailand…
We have built our divisions/agents in Chicago USA, Frankfurt Germany and Dubai.
We bring trust, comfort and benefits for our customer. Over the years, we have always done the
humane management. Our staff has played the full role in the innovation and management.
We have the experienced team of research and development in the electronic products.