PV Combiner Box 1000V 63A 2in2out is a professional solar protection solution designed to safeguard PV circuits with circuit breakers, fuses, isolators, and surge protection. Featuring a 2-in-2-out structure, it not only simplifies wiring but also ensures reliable circuit protection against overcurrent, short circuits, and lightning. Certified by CE, CB, and TUV, this compact and flexible combiner box is ideal for residential, commercial, and industrial PV systems, making your solar power setup safer and more efficient.
I. Introduction
With the rapid development of clean energy, ensuring the safety and stability of photovoltaic circuits has become a core issue in design and operation, and maintenance.
In photovoltaic systems, the combiner box is an indispensable component. It not only combines and distributes circuits, but also plays a vital role in electrical protection and safety isolation. Especially for high-voltage, high-current DC circuits, a professional combiner box can significantly reduce system operating risks.
This PV Combiner Box 1000V 63A 2in2out is designed to meet this need. Unlike traditional combiner boxes, it is more focused on protecting the safety of the entire photovoltaic system, rather than simply distributing power.
II. Product Overview
This combiner box adopts a 2-in-2-out structure, suitable for protecting nodes in the middle of the circuit. It can be flexibly configured with circuit breakers, disconnect switches, fuses, and surge protectors as needed, effectively protecting against risks such as overcurrent, short circuits, lightning strikes, and power surges.
Key attributes
| PV Combiner Box 1000V 63A 2in2out | |
| Model No. | MDJB-2/2 |
| Input | 2 strings |
| Output | 2 strings |
| Maximum Voltage | 1000V |
| Max DC Short Circuit Current Per Input（Isc） | 16A（Changeable） |
| Maximum Current Output | 32A |
| Enclosure | PLASTIC |
| Material Type | Polycarbonate/ABS |
| Degree of Protection | IP65 |
| Degree of Resistance to Impacts | IK10 |
| Dimension（W*H*D） | 292*195*132mm |
| Cable input Entry | PG09 Cable Gland,2.5-16mm² |
| Output Cable Gland | PG21 2.5-16mm² |
| DC Switch Disconnector | MDIS |
| Rated Insulation Voltage （Ui） | 1000V |
| Rated Current（Le） | 32A |
| Certification | UL, TUV, CB, CE |
| DC Surge Arrester | MDSP |
| Max Operation Voltage（Ucpv） | 1000V |
| Maximum Discharge Current | 40KA |
| Certification | TUV, CE |
| DC Fuse Holder | MDFU |
| Rated Working Voltage | 1000V |
| Fuse Link | 10*38mm Littel 16A |
| Certification | UL, CB, CE, TUV |
III. Core Functions and Applications
1. Circuit Protection
This PV Combiner Box 1000V 63A 2in2out is more than just a junction box; it is a comprehensive protection node capable of protecting different targets in various scenarios, truly reducing system risks. It prevents overcurrent and short circuits, improving system stability.
In the event of a fault, it quickly disconnects, protecting downstream inverters and energy storage devices.
2. System Optimization
As an intermediate circuit node, it simplifies the wiring structure.
This extends system life and reduces maintenance costs.
3. Unique Advantages
Unlike simple consolidation, it emphasizes both protection and distribution.
It can be flexibly deployed in different scenarios to meet diverse needs.
IV. Configurable Components
The MOREDAY 2-in 2-out Combiner Box’s flexibility comes from its support for multiple interchangeable configurations:
Circuit Breaker: Provides overload and short-circuit protection, with DC-specific models available.
Isolator Switch: Conveniently disconnects the circuit during maintenance, ensuring operator safety.
Fuse: Fast-acting, protects individual input circuits.
Surge Protective Device (SPD): Protects against lightning strikes and grid transient overvoltages.
Customers can choose different combinations based on project requirements to create a customized circuit protection system.
V. Application Scenarios and Usage
Application Scenarios
Residential Rooftop PV Systems: Ensure the long-term stable operation of home PV power plants.
Commercial Building PV: Suitable for multi-input, distributed PV projects.
Industrial PV Power Plants: Provide high-level protection in high-voltage, high-current environments.
Instructions
Connect the output of the PV array to the input of the combiner box.
Connect the output to the inverter or downstream power distribution equipment.
Determine whether to connect a circuit breaker, disconnect switch, fuse, or surge protector based on system requirements.
Perform grounding and protection according to the installation manual.
VI. Product Advantages
High Safety: Comprehensive electrical protection eliminates the risk of accidents.
High Flexibility: Customizable internal components to suit different projects.
High Reliability: High-quality components, CE/CB/TUV certified.
High Convenience: Compact design, simple wiring, and easy installation and maintenance.
VII. Conclusion
The MOREDAY PV Combiner Box 1000V 63A 2in2out is more than just a combiner box; it’s a safety guardian for your PV system. It integrates circuit protection, intelligent distribution, and flexible configuration to provide an efficient and reliable solution for residential, commercial, and industrial PV projects.
Choose MOREDAY, and choose a safer and more efficient PV future.
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