Solar PV Combiner Box for DC Power Distribution
JUTRION solar PV combiner boxes are designed to combine multiple photovoltaic string inputs into a single DC output while providing reliable overcurrent, surge, isolation, and monitoring protection. They are widely used in rooftop solar systems, commercial PV projects, utility-scale solar plants, and battery energy storage applications.
Available for 600V, 1000V, and 1500V DC systems, our PV combiner boxes can be configured with DC fuses, surge protective devices, isolator switches, circuit breakers, monitoring modules, and customized input-output arrangements. JUTRION also provides OEM/ODM support for enclosure size, string quantity, component brands, labels, wiring, and protection configurations.
JUTRION Solar PV Combiner Box
Multiple String Inputs
Combines multiple PV string inputs into a single DC output for centralized power distribution.
IP65 Waterproof Enclosure
IP65-rated housing protects internal components from dust, rain, and outdoor conditions.
Integrated DC Protection
Integrates DC fuses, SPDs, isolator switches, and circuit breakers for reliable protection.
Designed to IEC Standards
Designed to applicable IEC requirements for safe and reliable PV DC distribution.
Quick Answer: What is a Solar Combiner Box?
A Solar Combiner Box (also known as a PV Combiner Box) is an essential electrical component in solar power plants. It aggregates the direct current (DC) output from multiple solar panels (strings) into a single, centralized master DC output, which is then routed to the solar inverter. In short: It acts as the central gathering hub for multi-string solar wiring, streamlining the system and cutting down cable costs.
JUTRION PV Combiner Box Range for Commercial & Utility Solar
JUPV1000-1/1 PV DC Protection Box
Single-String All-in-One Protection: Integrates DC isolation, surge protection, and overcurrent protection for one PV string in a single compact enclosure.
Compact Design for Limited Installation Space: The simplified 1-input/1-output structure is ideal for residential rooftops and small PV systems where installation space is limited.
Lower Wiring and Installation Cost: Pre-wired internal components reduce on-site wiring work, installation time, and labor costs.
Model: JUPV1000-1/1
Configuration: 1 Input / 1 Output
Voltage Rating: 1000V DC
Protection Degree: IP65
JUPV1000-2/1 PV DC Combiner Box
Two PV Strings Combined into One Output: Combines two independent PV string inputs into one DC output, simplifying connection to the inverter.
Independent Fuse Protection for Each String: Each input string is protected separately, helping isolate faults and reduce the risk of reverse-current damage between strings.
Integrated Surge Protection and DC Isolation: Built-in DC SPD and isolator or circuit breaker provide centralized protection and safer maintenance.
Model: JUPV1000-2/1
Configuration: 2 Inputs / 1 Output
Voltage Rating: 1000V DC
Protection Degree: IP65
JUPV1000-4/1 PV DC Combiner Box
Four PV Strings Combined into One Output: Combines four independent PV string inputs into one DC output for centralized power collection and simplified inverter connection.
Independent Fuse Protection for Each String: Each input string is protected separately, helping isolate faults and reduce the risk of reverse-current damage between strings.
Integrated Surge Protection and High-Current DC Isolation: Built-in DC SPD and isolator or circuit breaker provide centralized surge protection, safe disconnection, and easier maintenance.
Model: JUPV1000-4/1
Configuration: 14Input / 1 Output
Voltage Rating: 1000V DC
Protection Degree: IP65
Why Choose JUTRION PV Combiner Boxes?
99% Full Stock, Ready to Ship: We maintain massive ready-to-ship inventory for JUPV1000 series, eliminating waiting times and ensuring instant global dispatch.
Premium Heavy-Duty DC Components: Pre-wired with top-tier, certified 1000V DC Fuses, high-performance SPDs, and robust Isolators for ultimate long-term reliability.
IP65/IP66 Weatherproof Enclosure: Engineered with high-grade UV-resistant and anti-corrosion properties to withstand extreme full-load solar field exposure.
Rapid OEM & Customization Support: Backed by rich engineering expertise, we quickly adapt layouts, brands, and voltage ratings up to 1500V DC based on your blueprints.
How to Choose the Right Solar Combiner Box
Choosing the right solar combiner box requires matching the box configuration with the electrical parameters, protection requirements, and installation environment of the PV system. Consider the following key factors:
Confirm the Number of PV String Input：
Select the combiner box according to the number of PV strings that need to be combined, such as 1-in-1-out, 2-in-1-out, 4-in-1-out, or 8-in-1-out configurations.
Match the Maximum DC System Voltage：
The rated voltage of the combiner box and its internal components must be equal to or higher than the maximum open-circuit voltage of the PV array. Common system voltage levels include DC 600V, 1000V, and 1500V.
Calculate the Required Current Rating
Check the short-circuit current of each PV string and select suitable DC fuses, circuit breakers, terminals, and output components with sufficient current capacity and safety margin.
Select the Required Protection Components：
A solar combiner box can be equipped with DC fuses, DC circuit breakers, surge protective devices, and DC isolators. The configuration should be selected according to the system design and protection requirements.
Consider the Installation Environment：
For outdoor PV installations, choose a durable enclosure with suitable IP protection, UV resistance, corrosion resistance, and reliable sealing performance.
Confirm Monitoring and Customization Requirements：
For larger PV systems, optional functions such as string current monitoring, remote communication, alarm outputs, and customized terminal arrangements may be required.
The correct solar combiner box should match the number of PV strings, system voltage, operating current, protection configuration, and installation environment. Providing complete system parameters helps ensure accurate selection and reliable long-term operation.
Key Application Fields for PV Combiner Boxes
Utility-Scale Solar Power Plants
Combines multiple PV strings and provides stable DC input for central inverters.
Commercial & Industrial Rooftop Solar Systems
Suitable for rooftop PV projects on factories, warehouses, shopping centers, and office buildings.
Residential Solar Power Systems
Provides string combining and electrical protection for residential and small distributed PV systems.
Agrivoltaic & Fishery-Solar Projects
Designed for PV systems installed in farmland, greenhouses, and aquaculture environments.
Off-Grid & Solar Energy Storage Systems
Provides DC combining and protection between PV arrays, battery storage, and inverter systems.
Telecom Base Stations & Remote Power Systems
Provides reliable solar DC distribution for telecom sites, remote areas, islands, and off-grid locations.
Frequently Asked Questions About Solar Combiner Boxes
What is the lead time for JUPV1000 series combiner boxes?
We maintain 100% full stock for our core 1-string, 2-string, and 4-string 1000V DC boxes, allowing for zero lead time and instant global shipping for your urgent projects.
Can I get a custom 1500V DC configuration instead of 1000V?
Yes. While our standard in-stock fleet is 1000V DC, our engineering team can rapidly upgrade and customize internal layouts to 1500V DC architectures based on your technical drawings.
Are JUTRION combiner boxes suitable for harsh coastal or high-temperature environments?mbiner boxes?
Absolutely. Our enclosures feature an IP65/IP66 waterproof rating with high-grade UV-resistant and anti-corrosion properties, engineered to maintain optimal full-load thermal dissipation under intense solar field exposure.
Why does the 1-In 1-Out model call a “Protection Box” instead of a “Combiner Box”?
Because a single-string system doesn’t require “combining” multiple inputs. The JUPV1000-1/1 is dedicated to isolating, breaking, and protecting a single string with top-tier internal DC SPDs and switches.
What internal DC protection components are pre-wired inside JUTRION boxes?
Every box is pre-wired with premium industrial-grade heavy-duty DC components, including specialized high-voltage DC Fuses (positive & negative poles), certified DC SPDs, and robust DC Isolators/MCCBs.
Do you support OEM private labeling for commercial projects?
Yes. Backed by rich manufacturing expertise, we offer comprehensive B2B customization, including custom terminal layouts, specialized branding, and OEM private labeling to fit your project blueprints.
GET A SOLAR COMBINER BOX QUOTE
LOOKING FOR THE RIGHT COMBINER BOX FOR YOUR SOLAR PV PROJECT? CONTACT JUTRION.
OUR TEAM WILL PROVIDE MODEL SELECTION, CONFIGURATION REVIEW, AND QUOTATION SUPPORT BASED ON YOUR STRING QUANTITY, SYSTEM VOLTAGE, CURRENT RATING, AND PROTECTION REQUIREMENTS. OEM/ODM CUSTOMIZATION IS ALSO AVAILABLE.