PV DC Solar Combiner Box | Global Supplier
PV Combiner Box
Monitor PV Combiner Box
Application
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Large-Scale Solar Farms
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Commercial and Industrial Rooftops
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Real-Time Performance Diagnostics
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Centralized Safety and Protection
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Simplifying System Commissioning
Features
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Finger - safe fuse holders
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400 A or 500 A, 1500 V load breaker switch
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Plated bus bars rated for 90℃, 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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1500 V - specific PV SPD, Type l+ll
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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 cable quick 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
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section area 500 ~ 1000AWG/kcmil,
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easy 2 - hole output plug access
Monitor
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Per string current and bus voltage monitoring
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Power, electrical energy monitoring
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Normal and failed status of SPD
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ON and offstatus of output LBS
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Product internal temperature
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RS 485 communication port/Modbus protocol
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Self - powered, Input voltage: 450 ~ 1500 Vdc
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Input rated current range: 0 - 35A
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Wireless communication (Optional)
TYPE
MODELS | JD-PVMC-16 | JD-PVMC-20 | JD-PVMC-24 |
|---|---|---|---|
Weight (pounds) | 107lbs | 107lbs | 110lbs |
Enclosure size (inches, W*H*D) | 36”*28”*10”（a） | 36”*28”*10”（a） | 36”*28”*10”（a） |
Maximum air ambient | 50℃ | 50℃ | 50℃ |
Enclosure | NEMA 4X | NEMA 4X | NEMA 4X |
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 |
Grounding cable | 1/0 ~ 6AWG | 1/0 ~ 6AWG | 1/0 ~ 6AWG |
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 |
Input cable | 8 ~ 12AWG | 8 ~ 12AWG | 8 ~ 12AWG |
Number of Dc input circuits | 16 | 20 | 24 |
Maximum circuit breaker rating | 400A (external handle+AX) | 500A (external handle+AX) | 500A (external handle+AX) |
Maximum fuse | Up to 35A | Up to 35A | Up to 35A |
Maximum system voltage | 1500 V dc | 1500 V dc | 1500 V dc |
Photovoltaic Combiner Box China Manufacturer
1000V/2000V Photovoltaic (PV) Wire Aluminum – Lightweight, Cost-Effective, and Durable for Solar Applications
Against Faults
PV combiner box is equipped with a comprehensive suite of protection features, including over-voltage, over-current, and surge protection
Real-Time Monitoring
Smart PV combiner box tracks the current and voltage of each individual string. Real-time data helps you proactively manage your system
We Are Manufacturer
JUNDA-SOLAR is committed to delivering all products that meet and exceed international standards
Compliance and Market
Our solar combiner box with monitoring has been tested and certified by leading global authorities
Advanced Solar Array Management
We deliver a sophisticated solar combiner box solution that simplifies wiring, enhances safety, and provides comprehensive insights for projects
Solar Combiner Box Factory China
Monitor PV Combiner Box - Real-time monitoring, Enhanced safety, Simplified installation, Efficient troubleshooting
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Q1: What is a 1500V DC PV Combiner Box, and why are its components so critical to system performance?
A PV combiner box serves as a central connection point in a photovoltaic system, collecting the direct current (DC) power from multiple solar panel strings and combining them into a single, higher-current output that is then routed to the inverter. This function is particularly critical in large-scale solar installations, as it significantly reduces the number of cables running from the array to the inverter, thereby minimizing power losses, streamlining wiring, and lowering overall installation costs.
Q2: How do advanced monitoring features in a combiner box enhance efficiency and fault detection?
Advanced monitoring features transform a PV combiner box from a passive connection point into an active, intelligent hub for data collection and analysis. By measuring key parameters such as the current and voltage of each individual string, as well as the status of internal components like SPDs and fuses, the combiner box provides a granular view of the solar array’s performance.
Q3: What key safety features and durability ratings are essential for a reliable 1500V DC combiner box?
Ensuring safety in a high-voltage DC system requires a multi-layered approach that combines robust physical protection with integrated electrical safeguards. A reliable 1500V DC combiner box is engineered to mitigate risks on multiple fronts, including electrical hazards, environmental damage, and fire risks.
Q4: How does the PV combiner box integrate with modern Rapid Shutdown Systems for enhanced fire safety?
Rapid Shutdown (RSD) is a critical safety feature mandated by the National Electrical Code (NEC) to protect firefighters and other first responders from high-voltage DC circuits on rooftops. The core requirement of RSD is to reduce the DC voltage within a certain perimeter of the solar array to a safe level, typically below 30V DC, within 30 seconds of a system shutdown.
FAQ
Q5: Why are international certifications like UL and IEC critical for B2B customers?
For B2B customers, certifications are not just stamps of approval; they are independent verifications of a product’s safety and quality, providing a critical layer of business assurance. A certified product provides peace of mind, builds trustworthiness, and simplifies the process of achieving compliance with local electrical codes and regulations.
Q6: What are the best practices for installation, wiring, and commissioning a 1500V DC PV Combiner Box?
Proper installation and commissioning are paramount to the safety and long-term performance of a PV system. A well-designed combiner box should simplify this complex process, minimizing labor costs and the risk of on-site errors. Many products are now available as "plug & play" solutions that come factory-assembled with fuses, breakers, and SPDs, which significantly reduces on-site wiring time and effort.
Q7: How do remote operation features provide a competitive advantage in large-scale solar project management?
Remote operation features transform the management of large-scale solar farms from a manual, on-site process to a centralized, proactive one. By enabling remote control, a combiner box allows operators to manage multiple units from a single location, which is particularly beneficial for extensive installations or solar plants located in hard-to-reach areas.
Q8: What are the common troubleshooting and maintenance procedures for a PV Combiner Box?
A regular maintenance schedule is essential for extending the durability and efficiency of a PV combiner box. While high-quality products are designed for low maintenance, periodic checks can prevent minor issues from escalating into major failures. Common routine maintenance tasks include verifying the tightness of all wire connections and cleaning the enclosure to prevent dirt and dust accumulation.
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
Our Industry Partners
