Basic Attributes
- Product Type: DC PV Combiner Box
- Input Configuration: 3 Inputs
- Output Configuration: 3 Outputs
- Rated Voltage: DC 500V
- Number of Circuits: Three circuits
- Input Protection: PV fuses
- Surge Protection: DC surge protective device
- Output Protection: DC circuit breakers
- Connection Method: PV connectors
- Installation: Wall-mounted
Product Description and Features
Three-Input and Three-Output PV Combiner Box
The 500V DC PV Combiner Box 3-In 3-Out provides a centralized connection and protection solution for three photovoltaic circuits. The three-input and three-output design allows each PV circuit to be routed through the enclosure while maintaining an organized and serviceable wiring arrangement.
Each input circuit can include a photovoltaic fuse to protect the solar cable and downstream equipment against overcurrent or reverse-current faults. A DC surge protective device provides additional protection against transient voltage surges generated by lightning or electrical switching.
The output circuits are controlled by DC circuit breakers, allowing installers to disconnect individual PV circuits during inspection, testing or maintenance. This configuration is useful for installations where multiple DC circuits must remain separately connected to different inverter inputs or MPPT channels.
The compact enclosure reduces the number of separately installed protective components and helps create a cleaner PV wiring system. The product is suitable for residential solar systems, small commercial PV projects, off-grid systems and other DC installations operating at up to 500V.
SOLKV can customize the internal component ratings, connector type, product label, logo and packaging according to project or distribution requirements.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | DC PV Combiner Box |
| Input / Output | 3 Inputs / 3 Outputs |
| Rated Voltage | DC 500V |
| Number of Circuits | 3 |
| Input Protection | PV fuses |
| Surge Protection | DC SPD |
| Output Protection | DC circuit breakers |
| Connection Type | PV connectors |
| Installation | Wall-mounted |
| Application | Multi-circuit solar PV systems |
Product decomposition diagram
FAQ
What information is required when selecting a PV combiner box?
Please provide the maximum system voltage, number of PV string inputs and outputs, maximum current per string, required surge protection level, connector type and installation environment.
What is the difference between a 3-in-1-out and a 3-in-3-out box?
A 3-in-1-out combiner box combines three PV strings into one output. A 3-in-3-out protection box keeps the three circuits independent and provides a corresponding output for each input.
Can the fuse and circuit breaker ratings be customized?
Yes. Fuse, breaker, surge protector and connector ratings can be configured according to the PV string current, inverter requirements and project specifications.
Are OEM and private-label services available?
Yes. SOLKV can provide customized logos, labels, packaging, connection methods and internal component configurations for distributors and project customers.
Can these products be installed outdoors?
Outdoor suitability depends on the confirmed enclosure protection rating, UV resistance, cable-entry method and operating temperature. These specifications should be verified before publishing an IP rating or outdoor-use claim.
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