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A pre-assembled solar PV DC combiner box designed for combining and protecting photovoltaic DC circuits in one IP65 outdoor metal enclosure.
The HONI 2-In 2-Out PV DC Combiner Box is designed to combine and protect photovoltaic DC circuits in a compact, factory-assembled enclosure. It integrates DC switching and internal protection components into one outdoor wall-mounted solution, helping reduce field wiring work and improve installation consistency.
The enclosure is manufactured in RAL7035 powder-coated cold-rolled steel, with an IP65 protection rating for outdoor applications. According to the approved drawing, the enclosure size is 500 × 300 × 200 mm, with 11 bottom PG11 cable-gland mounting holes and an outdoor wall-mounted structure.
1. Pre-Assembled Protection Structure
The combiner box is delivered as a factory-assembled unit, reducing site assembly work and minimizing wiring inconsistency.
2. Outdoor IP65 Metal Enclosure
The enclosure uses powder-coated cold-rolled steel with IP65 protection for outdoor wall-mounted applications.
3. 2-In 2-Out Configuration
Suitable for projects requiring two DC input channels and two DC output circuits.
4. Internal DC Protection Architecture
The assembled product shows DC switching/protection units, fuse protection modules, surge protection devices, distribution structures and grounding arrangements.
5. Organized Internal Wiring
The internal layout is arranged for clear polarity routing and easier on-site connection reference.
6. Bottom Cable Entry Design
The drawing specifies 11 PG11 waterproof cable-gland mounting holes at the bottom of the enclosure.
Reference drawing – 500 × 300 × 200 mm enclosure, IP65, RAL7035, outdoor wall mount, 11 × PG11 holes, two 32A/4P DC1000V switching units.
1. Maximum DC system voltage
Ensure the system voltage does not exceed the rated DC voltage of all installed protection components.
2. Input and output configuration
Confirm the number of PV input circuits and downstream output circuits required by the project.
3. Current requirement
Confirm maximum operating current, conductor sizing and the approved protection architecture.
4. Protection architecture
Confirm fuse protection, surge protection and DC switching requirements against the single-line diagram.
5. Installation environment
Verify enclosure material, IP rating, temperature and cable-entry arrangement for the actual site.
6. Project drawing / BOM
Final configuration must be confirmed against the approved project drawing and BOM.
This product is intended for solar PV DC circuit combining and protection before downstream DC connection. It helps centralize PV circuit management, simplify external wiring work, improve installation consistency, provide a defined enclosure for DC protection components, and support organized positive/negative DC routing.
Based on the assembled product photos, the box includes DC switching/protection assemblies, fuse protection modules, DC surge-protection devices, positive/negative DC distribution structures, an internal grounding bar, door grounding bonding and factory pre-wiring. Final component ratings and exact part numbers are confirmed according to the approved project BOM.
Product Name | PV DC Combiner Box |
Configuration | 2 Inputs / 2 Outputs |
Rated DC Voltage | 1000V DC |
Main DC Switching Units | 2 × 32A / 4P DC1000V (per drawing) |
Protection Degree | IP65 |
Enclosure Size | 500 × 300 × 200 mm |
Enclosure Material | Cold-rolled steel |
Material Thickness | 1.2 mm |
Colour | RAL7035 |
Finish | Powder coated |
Installation | Outdoor wall-mounted |
Cable Entry | Bottom entry |
Cable Entry Holes | 11 × PG11 mounting holes |
Locking | Latch lock |
Grounding | Internal PE arrangement; door bonding visible on assembled product |
Drawing Cabinet No. | HL1 – internal reference |
This combiner box is designed to combine and organize photovoltaic DC circuits in one outdoor enclosure while integrating a defined internal protection and switching structure.
Yes. The engineering drawing specifies IP65 protection and outdoor wall-mounted installation.
The enclosure size shown on the drawing is 500 × 300 × 200 mm.
The drawing specifies a 1000V DC configuration
This product is configured as 2 inputs and 2 outputs.
Yes. HONI can support project-based customization subject to engineering review, approved BOM and application requirements.
Yes. The assembled product includes DC switching/protection structure, fuse modules, surge-protection devices, distribution structures and internal wiring.
For engineering projects, the final configuration should be confirmed against system voltage/current data, single-line diagram and approved component list.
OEM / ODM branding can be supported according to the agreed project specification.
Please provide system voltage, current, number of inputs/outputs, single-line diagram or BOM, estimated quantity, enclosure requirements and branding requirements.
