Grid Connected Box
Your Professional Grid Connected Box Supplier
Our goal is to be your true partner in Dual Power Switch field in China.Changsong Cowns modern R&D center for developing electric products with full-line of high-tech moulding, manufacturing equipment and great strength of technical support, besides advanced design forces powered by first class engineering teams with super industrial computer systems. We have a skilled engineering team dedicated to refining every stage, from product development and process improvement to production oversight, ensuring every product delivered meets rigorous quality and performance standards. The price is competitive and the product is quality-assured, which is a good choice for your long-term cooperation.
Why Choose Us
Wide Product Range
Chang Song Electric Co., Ltd. Has successfully developed and producing various categories in industrial electric products which include: Circuit Breakers, Panel Boards, AC contactors, Meters, Relays, Fuses, Control Units… As well as many other electrical accessories such as LED lighting.
Professional Technical Team
Changsong Cowns modern R&D center for developing electric products with full-line of high-tech moulding, manufacturing equipment and great strength of technical support, besides advanced design forces powered by first class engineering teams with super industrial computer systems.
Advanced Equipment
In order to keep the leadship in electrical industry, Changsong continuous increase and update manufacturing facilities, keep improving techniques and adopting the most advanced inspect instrument to bring our products to an even higher quality level along with impeccable & rapidly delivery service.
Complete Qualifications
Changsong obtained ISO9001 quality system certification, ISO14001, OHSAS18001, CB certification; SEMKO and CE certification, etc.
Advantages of Grid Connected Box
Elevated Power Distribution
One of the significant advantages of grid connected box lies in their adeptness at amalgamating the incoming power from multiple strings into a solitary primary conduit. This streamlines the dispersion of power to the solar inverter, curbing both labor and material expenses by minimizing wire usage. Grid connected box
S also furnish safeguards against overcurrent and overvoltage, heightening the dependability and fortification of the inverter.
Seamless Setup And Upkeep
In residential environments, compact grid connected box are deployed to consolidate a limited number of string connections to a central hub, streamlining the processes of installation, disconnection, and maintenance. In contrast, within commercial landscapes, grid connected box
S of various dimensions cater to the diverse architectural layouts and building types, efficiently harnessing power. The accessibility and maintainability of the combiner box guarantee the solar power system’s enduring performance and longevity.
Optimized Power Loss Prevention
Optimal placement of the combiner box within the solar array is paramount in mitigating power loss. By strategically positioning the combiner box, both voltage and power losses can be kept to a minimum, resulting in an overall enhancement of system efficiency. This meticulous attention to detail can yield substantial benefits in cost reduction and maximizing power output.
Applications of Grid Connected Box
Residential and commercial
Grid-connected PV systems, powered by solar panels, are increasingly used in homes and commercial buildings to generate electricity.
Educational institutions, commercial Facilities, and industrial units
These systems provide a sustainable and affordable energy source for various applications. Grid-connected boxes include features like anti-islanding protection, lightning protection, and protection against overcurrents, overvoltages, and low voltages, ensuring the safety of the system and its users.
Protection of inverters and PV systems
They can automatically switch off the connection to the grid during abnormal conditions to prevent damage to the inverter and other components.

Product Description
|
Name |
PV combiner box |
|
System maximum de voltage |
1000 |
|
Maximum input current for each string |
20A |
|
Maximum input strings |
2 |
|
44Maximum outpui switch current |
40A |
|
Number of invener MPPT |
1 |
|
Number of Outpui strings |
1 |
|
Category of test |
II grade protection |
|
Nominal discharge current |
20kA |
|
Maximum discharge current |
40kA |
|
Voltage protection level |
3.8kV |
|
Maximum continuous operating voltage Uc |
1000V |
|
Poles |
3P |
|
Structure characteristic |
Plug-push module |
|
Operating Temperalure |
Wall mourning type |
|
Installation method |
Wall mourning type |
Product Specification
|
Part Number |
Description |
|
1 |
Negative convergence copper bar |
|
2 |
Detection unit |
|
3 |
DC miniature circuit breaker |
|
4 |
DC positive convergence output |
|
5 |
DC negative convergence output |
|
6 |
RS485 communication terminal (output point) |
|
7 |
Grounding output point |
|
8 |
Lightning protection device |
|
9 |
Positive convergence copper |
|
10 |
DC positive fuse holder and fuse (one fuse in series for each input) 16 circuits at most |
|
11 |
DC negative fuse holder and fuse (one fuse in series for each input) 16 circuits at most |
Delivery
|
Selling Units |
Single item |
|
Single package size |
60X50X30 cm |
|
Single gross weight |
21.000 kg |
Lead Time
|
Quantity (pieces) |
1 - 100 |
101 - 500 |
501 - 1000 |
> 1000 |
|
Lead time (days) |
31 |
41 |
51 |
To be negotiated |
Packaging & Shipping









