High-Current PV Combiner Box – Reliable Power for Utility-Scale PV Systems
PV Combiner Box
Key Features Of High-current PV Combiner Box
Application
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Utility-Scale Solar Farms
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Commercial and Industrial Rooftops
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Projects with High-Power Solar Modules
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Optimizing System Design
About
The Junda High Current PV Combiner Box is compliant with NEC 2017/20 0 and is used to combine multiple strings per circuit up to a 65A fuse - lin k (1500V - specific PV fuse, both positive and negative terminal), output ci rcuit breaker rating 400A or 500A.
NEMA 4X enclosure ratings , meeting the outdoor installation and usage requirements. Installation and maintenance simple, convenient, it has a lon g service life.
Features
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Finger - safe fuse holders
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400A or 500A, 1500V load breaker switch
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Plated bus bars rated for 90°C, Cu/Al
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Breather vent reduces internal condensation
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Safety insulation shield covers all live components
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Designed for ease of cable installation
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1500V - Specific PV SPD, Type II
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NEMA 4X lockable enclosure
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Standard 5 - year warranty
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Compliant with NEC 2017/2020
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Meet UL1741 standard/compliance
Flexible
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Pre - installed input glands or MC4 terminal connectors
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Pre - installed output/grouding glands
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Pre - installed breather valve
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Pre - installed mounted brackets
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Output Cu/Al bus bars: cable cross section area 500 ~ 1000AWG/kcmil, easy 2 - hole output plug access
TYPE
MODELS | JD-PVHC-8 | JD-PVHC-10 | JD-PVHC-12 |
|---|---|---|---|
Maximum system voltage | 1500 V dc | 1500 V dc | 1500 V dc |
Maximum fuse | Up to 65A | Up to 65A | Up to 35A |
Maximum circuit breaker rating | 400A (external handle) | 500A (external handle) | 500A (external handle) |
Number of Dc input circuits | 8 | 10 | 12 |
Input cable | 1 ~ 8AWG | 1 ~ 8AWG | 1 ~ 8AWG |
Output cable | 2* (1*500 ~ 800) AWG/kcmil Cu or Al | 2* (1*800 ~ 1000) AWG/kcmil Cu or Al | 2* (1*800 ~ 1000) AWG/kcmil Cu or Al |
Grounding cable | 1/0 ~ 6AWG | 1/0 ~ 6AWG | 1/0 ~ 6AWG |
SPD | Type ll, max: 40KA; limp: 6.25KA, Uc: 1500V | Type ll, max: 40KA; limp: 6.25KA, Uc: 1500V | Type ll, max: 40KA; limp: 6.25KA, Uc: 1500V |
Enclosure | NEMA 4X | NEMA 4X | NEMA 4X |
Maximum air ambient | 50℃ | 50℃ | 50℃ |
Enclosure size (inches, W*H*D) | 28”*28”*10”（a） | 36”*28”*10”（a） | 36”*28”*10”（a） |
Weight (pounds) | 90lbs | 90lbs | 100lbs |
Direct Factory Manufacturing in China
High-current PV Combiner Box - Real-time monitoring, Advanced safety,Maximizing Power Density, Optimizing System Efficiency
Unparalleled Safety
Box is equipped with a comprehensive set of advanced protection features, including reliable over-current protection, state-of-the-art fuses
High-Capacity Solar Arrays
High-current 1500V DC PV combiner box is specifically designed to meet the rigorous demands of utility-scale and large commercial solar projects
Certified for Global Markets
As a global manufacturer and supplier, JUNDA-SOLAR understands the importance of market-specific compliance
Trusted Manufacturing and Supply
Our expertise in supplying the US, German, and Australian markets ensures a smooth and efficient supply chain, from our factory to your project
Withstand the Harshest Environments
The robust enclosure of our solar combiner box is built from high-grade materials that provide superior resistance to UV radiation and water
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Q1: What is a High-current PV Combiner Box?
A High-current PV Combiner Box is an electrical enclosure designed to consolidate the DC power from multiple solar strings with high current outputs. Unlike standard combiner boxes, it is engineered with robust components to safely handle and manage increased amperage, making it ideal for modern, high-power solar arrays.
Q2: Why is a high-current capacity essential for modern solar projects?
Modern solar panels produce more power per module, which results in higher current outputs per string. A high-current capacity is essential to prevent overheating, minimize energy loss, and safely manage the increased power load. This ensures your system operates efficiently and reliably over its lifespan.
Q3: How does a High-current PV Combiner Box optimize system efficiency?
By consolidating a greater number of high-output strings into a single box, this solution minimizes the number of cable runs and connections required. This streamlined design reduces voltage drop and power loss, ensuring that more of the energy generated by your solar panels is delivered to the inverter, maximizing the overall energy yield.
Q4: How does it simplify installation and reduce costs?
The ability to consolidate more strings in a single enclosure reduces the need for multiple combiner boxes and extensive cabling. This saves on hardware costs and significantly reduces on-site labor and installation time, leading to a faster and more cost-effective project completion.
FAQ
Q5: What safety features are included in a High-current PV Combiner Box?
Our high-current boxes are built with enhanced safety in mind. They are equipped with heavy-duty fuses or circuit breakers to provide overcurrent protection, and often include surge protection devices (SPDs) to safeguard the system from lightning strikes and other electrical surges. This robust protection is crucial for high-power systems.
Q6: What applications are best suited for this product?
The High-current PV Combiner Box is the ideal choice for large-scale utility solar farms, commercial and industrial rooftop projects, and any installation using high-efficiency, high-power solar modules. It is the preferred solution for projects where maximizing power density and minimizing balance-of-system (BOS) costs are critical.
Q7: Can a High-current PV Combiner Box be customized for specific project needs?
Yes. We offer customizable solutions to match your specific project requirements, including options for the number of input strings, different fuse ratings, and additional monitoring or safety features. This ensures the combiner box integrates perfectly with your unique system design.
Q8: How does a High-current PV Combiner Box improve system reliability and maintenance?
By providing a single, centralized point for numerous string connections, it makes routine inspections and troubleshooting more efficient. Technicians can quickly access and manage all critical connections from one location, which reduces downtime and ensures the long-term reliability and performance of your photovoltaic system.
WHY JUNDA
A Different Approach, Using a New Method of Manufacturing
Our Factory
At our factory, operational excellence isn't just a slogan, it's the way we work. We're constantly striving to improve every aspect of our production process, from material selection to final assembly. By eliminating waste and focusing on efficiency, we ensure we're delivering the highest quality PV harnesses while maximizing productivity.
COLLABORATION
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