PV Junction Box 2 4 6 8 12 24 IN 1 OUT 2-24 Strings IP65 PV Array Combiner Box
In the solar photovoltaic power generation system, in order to reduce the incoming line of solar photovoltaic cell array and inverter inspection, improve the reliability of the system, and facilitate the installation and maintenance of the system, it is generally necessary to add DC collector-shoe gear-PV combiner box in the inspection of photovoltaic modules and inverters.
Users can connect a certain amount of photovoltaic cells with the same specification in series, form PV serials one by one, then connect several PV serials into PVB series PV combiner anti-thunder box. Collecting in the PV anti-thunder combiner box, by lightning protector and circuit breaker output to the PV inverter, which is used to form a complete PV power generation system. Simplify the system wiring, improve the safety of the system, to provide customers with a safe, simple, beautiful, practical photovoltaic system products.
Comprehensive System Protection:
Beyond the function of PV collection, the PV combiner box also has a series of perfect protection functions such as current protection, over current protection, over voltage protection, lightning protection and so on.
Performance Characteristics
1/2/4/6/8/10/12/16/24-way PV array Parallel input way can be connected.
PV special use DC fuse, Both positive and negative electrodes are equipped with fuse.
Wide DC voltage input, the input voltage of PV array can reach 1000VDC.
Anti-reverse connection module, to prevent the damage of the back-end device caused by the opposite connection of positive and negative terminals.
Use PV special use DC fuses and lightning protection modules.
IP65 protection degree, can meet the operating requirement for outdoor installation.
Wall-mounted type is easy to install and maintain.
Technical Parameters
Input: 1-30 way
Output: 1-5 way
Voltage class: DC500/1000V/optional
Protection degree: IP65/IP66
Working temperature: -80~60°C
Environment temperature: 0~99%
Elevation: <=5500mm
Customization: Way number can be customized.
Internal Structure Details
Part Number
Description
1
Negative convergence copper busbar
2
Detection unit
3
DC MCB
4
Dc positive Convergence output
5
Dc negative Convergence output
6
RS485 communication terminal (output point)
7
Ground output point
8
Lightning protection device
9
Positive convergence copper
10
DC positive fuse holder and fuse (each input in series with a fuse) up to 16 way
11
DC negative fuse holder and fuse (each input in series with a fuse) up to 16 road
Figure 1: Internal structure of the combiner box
Size Specifications
Specification
Width (A) mm
Height (B) mm
Depth (C) mm
18 way
645
550
205
14, 16 way
610
550
205
10, 12 way
530
550
205
6, 8 way
460
550
205
2, 4 way
390
550
205
Product Gallery
Frequently Asked Questions (FAQ)
Q1: What is the main function of a PV combiner box?
A: It converges multiple solar PV serial inputs into a single DC output before connecting to the inverter. This simplifies wiring, enhances safety, and integrates protections like lightning, overcurrent, and overvoltage.
Q2: What is the protection rating, and is it suitable for outdoor use?
A: Yes, it features an IP65/IP66 protection class rating, which provides robust waterproof and dustproof protection, making it fully suitable for outdoor wall-mounted installations.
Q3: How many input strings can this combiner box accommodate?
A: Standard specifications support 2 to 24 parallel input ways. Furthermore, we support fully customized setups with input configurations from 1 to 30 ways.
Q4: Does the combiner box include built-in safety protection modules?
A: Yes, it is equipped with dedicated PV lightning protection devices (SPDs), positive and negative fuse protectors, anti-reverse connection modules, and a DC MCB.
Q5: What are the input voltage and environmental specifications?
A: It supports a wide DC voltage input up to 1000VDC. It functions reliably within a working temperature range of -80°C to 60°C and elevations up to 5500mm.
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