PV Combiner Box

• Enclosure Structure
Wall-Mounted Metal Housing: Equipped with an extended rear mounting bracket, specifically designed for secure attachment to walls or specialized structural frames.
Powder-Coated Cold-Rolled Steel: Constructed from high-quality cold-rolled steel with a smooth, vent-free surface. The enclosure is engineered with a protection rating suitable for rigorous outdoor environments.
Bottom Cable Interface: Multiple waterproof cable glands are evenly arranged along the bottom of the enclosure, supporting the organized entry and connection of multiple PV string cables.

• Safety & Protection
High-Voltage Warning Sign: A prominent yellow triangular high-voltage warning symbol is centered on the front panel, providing a clear visual alert of electrical hazards.
Safety Instructions Label: An English "NOTICE" label is positioned below the warning sign, detailing professional operational requirements and safety protocols.
Dedicated Locking Mechanism: Features a square metal latch on the left side to prevent unauthorized access and ensure the security of internal electrical components.

• Functional Positioning
String Convergence Node: Acts as a central hub where multiple DC inputs from PV strings are combined into a single output, significantly simplifying the wiring process for downstream inverters.
Outdoor-Ready Protection: The sealed, hole-free housing paired with waterproof bottom interfaces makes the unit ideal for open-air installations in rooftop or ground-mounted solar plants.

• Installation Features
Rear Mounting Architecture: The extended brackets feature pre-drilled holes, facilitating rapid and efficient wall-mount installation at the job site.
Compact Form Factor: The small-footprint design minimizes space requirements, allowing for convenient placement in close proximity to the photovoltaic arrays.

Installation & Compatibility
Installation Method: Wall-mounted installation; rear hanging brackets fixed to walls, brackets, or PV array columns via expansion bolts; lightweight design allows single-person installation.
System Compatibility: DC side connects multiple PV strings, combines into single output to inverter or controller; built-in fuses or circuit breakers provide string-level overcurrent protection.
Easy Maintenance: Front single-door or full-open design (based on lock position), opening provides access to internal busbar and protection devices; bottom waterproof connectors support quick connect/disconnect.

Applications
Distributed PV Power Stations: Multi-string combining for commercial, industrial rooftop, and ground power stations, reducing inverter DC input port usage.
Residential PV Systems: Combining multi-orientation strings on home rooftops, simplifying the number of cables entering the home.
PV Array DC Distribution: Sub-array-level combining for large power stations, serving as basic nodes of the DC distribution network.
PV System Retrofits: String capacity expansion and redistribution for existing systems, optimizing DC-side layout.

This series of products supports B2B bulk purchasing. The minimum order quantity and delivery cycle vary depending on the specific configuration. We offer OEM branding services .

For technical inquiries, quote requests, or project specification support, please contact our sales team and provide information such as the project location, required quantity, installation method, and applicable local technical standards. Samples can be provided for evaluation and testing prior to bulk purchasing.