China CNKA offers wholesale 4-string solar combiner boxes that integrate the highest quality DC components, including a 600V DC circuit breaker, finger-safe touch DC fuse holder, and a Type 2 DC lightning arrester, all pre-installed in a sturdy housing. These reliable photovoltaic modules provide maximum protection, ensuring the safe and reliable operation of the solar photovoltaic system, thereby extending the system's service life.
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Specifications |
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Solar PVDC4 in 1 out Combiner Box |
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Rated voltage of photovoltaic system |
DC600V&1000V |
Maxinput amp for each string |
15A |
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Input strings |
4 |
Number of output strings |
1 |
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Waterproof grade ip65/Lighting protection |
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Category of test |
ll grade protection |
Nominal discharge amp |
20KA |
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Max discharge amp |
40KA |
Volt protection level |
3.5KV |
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SPD Max operation voltage |
DC600V&1000V |
Poles |
2P/3P |
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Structure characteristic |
Plug push module |
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System |
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Protection grade |
lp65 |
Output switch |
DC circuit breaker |
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Solar connector |
Standard |
Box material |
PVC/ABS |
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Installation method |
Wall mounting type |
Operating temperature |
-25℃-+60℃ |
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Installation:indoors/outdoors |
Yes |
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Mechanical parameter |
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Widh*high*Depth(mm) |
■ 170*220*110 ■ 270*360*155■ 310*200*110■ 415*283*135 |
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The photovoltaic combiner box not only collects photovoltaic energy but also offers comprehensive protection functions, including current protection, overcurrent protection, overvoltage protection, and lightning protection.
Q: Are MCBs OK for DC?
A: When working with DC circuits, it is crucial to use MCBs that are specifically designed and marked with DC ratings. It is important to note that AC MCBs should never be used in DC circuits, as they are not designed to extinguish the arc created in DC circuits. Using AC MCBs in DC circuits can lead to overheating of wires, which can ultimately result in a fire. Therefore, it is not safe to assume that AC MCBs can be used in DC circuits solely based on their matching ampere and voltage ratings.
Q: What does a PV disconnect switch do?
A: The PV disconnect switch acts as a breaker that interrupts the DC current flow from the solar panels to the inverter. The AC disconnect switch separates the inverter from the electrical grid.
Q: What is a solar combiner box used for?
A: Solar panel combiner boxes, also known as solar photovoltaic array combiners, play a crucial role in combining multiple solar panels or strings of panels into a unified bus. These junction boxes are specifically designed to handle the wiring used in PV systems.
Address
Jingtai Testing Equipment, Xiangyang Industrial Zone, Liushi Town, Leqing City, Wenzhou City, Zhejiang Province
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