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⎯⎯ Solar PV DC Protection · 600V / 1000V

Combiner Box for Solar PV Systems

VIOX combiner box products are designed for solar PV systems that need safe string collection, organized DC protection, and practical field installation. The current range covers solar combiner box, PV combiner box, and DC combiner box configurations across 600V and 1000V systems, with integrated fuse, SPD, and isolator layouts.

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600V/1000V

System Voltage Classes

1-8

Current String Range

Fuse+SPD

Integrated Protection Logic

VOPV600-2:2 Solar Combiner Box
  • PV String Collection
  • Fuse + SPD + Isolator
  • Plastic and Metal Direction
  • IP65 Outdoor Layout
  • Global Delivery

⎯⎯ About the Product

What Is a Combiner Box?

A combiner box is the enclosure that collects the output of multiple PV strings and combines them into one output or a smaller number of outputs before the inverter or downstream DC equipment. In a modern solar combiner box, this enclosure also organizes internal protection devices and cable routing in one serviceable assembly.

In practical project buying, most users compare a PV combiner box or DC combiner box by voltage class, string count, enclosure rating, protection stack, and installation fit. The current product range is organized around real model groups, system configuration, and protection logic for faster selection.

String Consolidation

Bring multiple PV string outputs into one organized enclosure before routing power to the inverter side.

Protection Integration

Integrate string fuse protection, DC SPD, and DC isolator functions inside the same combiner box layout.

Outdoor Installation Fit

Match enclosure material, ingress protection, cable entry, and service access to real rooftop and field-side conditions.

inside of VOPV1000-1/1 Solar Combiner Box

⎯⎯ Product Range

Combiner Box Models and Categories

Explore real combiner box, solar combiner box, and DC combiner box model groups by voltage class, string configuration, enclosure direction, and internal protection layout.

600V DC

VOPV600-1/1 Solar Combiner Box

VOPV600-1/1 Solar Combiner Box

The plastic combiner box direction fits compact outdoor installations where wall-mounted design, lighter enclosure weight, and clean integrated protection layouts are priorities.
  • Model : VOPV600-1/1
  • Configuration : 1 Input / 1 Output
  • Enclosure: PC+ABS
  • Voltage Class: 600V DC
  • Ingress: IP65

600V DC

VOPV600-2:2 Solar Combiner Box

VOPV600-2/2 Solar Combiner Box

The VOPV600-2/2 model is suited to low-voltage DC collection projects that need a compact plastic enclosure with two-way string handling and a practical rooftop-ready layout.
  • Model : VOPV600-2/2
  • Configuration : 2 Input / 2 Output
  • Enclosure: PC+ABS
  • Voltage Class: 600V DC
  • Ingress: IP65

1000V DC

VOPV1000-1/1 Solar Combiner Box

VOPV1000-1/1 Solar Combiner Box

This 1000V plastic solar combiner box supports higher-voltage PV layouts while keeping the enclosure compact, sealed, and easy to integrate on the DC side of the system.
  • Model : VOPV1000-1/1
  • Configuration : 1 Input / 1 Output
  • Enclosure: PC+ABS
  • Voltage Class: 1000V DC
  • Ingress: IP65

1000V DC

VOPV1000-2/2 Solar Combiner Box

VOPV1000-2/2 Solar Combiner Box

The VOPV1000-2/2 model provides a balanced two-way 1000V configuration for projects that need a plastic solar combiner box with clear input-output organization and outdoor-ready enclosure performance.
  • Model : VOPV1000-2/2
  • Configuration : 2 Input / 2 Output
  • Enclosure: PC+ABS
  • Voltage Class: 1000V DC
  • Ingress: IP65

1000V DC

VOPV1000-3/3 Solar Combiner Box

VOPV1000-3/1 Solar Combiner Box

The VOPV1000-3/1 model is intended for higher string collection density in one plastic enclosure, offering a practical 1000V solution for projects that need more input capacity while keeping a compact outdoor-ready format.
  • Model : VOPV1000-3/1
  • Configuration : 3 Input / 1 Output
  • Enclosure: PC+ABS
  • Voltage Class: 1000V DC
  • Ingress: IP65

Custom

VIOX VCB F6/1 DC PV Combiner Box

Custom Combiner Box and OEM Support

If your project needs a specific string layout, device stack, cable entry arrangement, enclosure material, or branding direction, VIOX can also support OEM-oriented combiner box matching.

Discuss OEM Requirements

⎯⎯ Technical Data

Selection Factors

Compare combiner box models by the project factors that matter most in solar PV selection: voltage class, string count, enclosure type, protection devices, cable entry, and installation environment.

In practical project buying, most users compare a PV combiner box or DC combiner box by voltage class, string count, enclosure rating, protection stack, and installation fit. The current product range is organized around real model groups, system configuration, and protection logic for faster selection.

Combiner Box Selection Checklist

ParameterWhat to Confirm
System VoltageMatch the combiner box to 600V or 1000V PV system architecture.
String CountChoose the input and output layout needed for 1, 2, or 3 string collection in the current plastic series.
Protection DevicesConfirm if string fuse, DC SPD, and DC isolator are required inside the enclosure.
Enclosure TypeConfirm the plastic PC+ABS enclosure direction for rooftop and outdoor installation needs.
Ingress RatingCheck if the project needs outdoor-ready sealing such as IP65.
Mounting MethodConfirm wall-mounted installation method, cable entry direction, and field access space.
Cable EntryReview input-output path, gland arrangement, and field wiring access.
Service AccessMake sure internal layout supports maintenance and replacement of protection devices.
Application SideIdentify rooftop, commercial, industrial, or field PV application fit.
Quantity and BrandingFor OEM projects, confirm quantity, marking, and packaging requirements early.

Configuration Priorities

String Count

1 to 3 input direction

600V / 1000V

Voltage class matching

IP65

Outdoor enclosure fit

Fuse

String protection

SPD

DC surge protection

Isolator

DC switching support

Configuration Priorities

  • Plastic enclosure direction — PC+ABS outdoor-ready product logic
  • Bill-of-material style layout — clearer internal device arrangement and component review
  • Integrated device stack — fuse, SPD, and switch disconnector logic
  • Current model depth — multiple live configurations for residential, commercial, and project supply

⎯⎯ Applications

Where a Combiner Box Is Used

Combiner box selection depends on how the enclosure, voltage class, string layout, and protection stack match the actual solar PV installation environment.

Residential Rooftop PV

Compact combiner box layouts are often used where rooftop string collection and compact outdoor installation are important.

Commercial Rooftop Solar

Commercial projects often compare string count, enclosure sealing, and service access when selecting a solar combiner box.

Industrial Rooftop Systems

Industrial rooftop arrays need DC collection boxes that can integrate protection devices and keep field wiring organized.

Ground-Mount Solar

Plastic multi-string combiner box products are useful for field installations that need a higher input count in one outdoor-ready enclosure.

Inverter-Side String Collection

A PV combiner box is commonly selected based on how it matches inverter-side DC architecture and output routing.

DC Protection Layouts

Projects that need fuse, SPD, and isolator coordination inside one enclosure often begin with combiner box selection.

Remote Outdoor Installations

IP65 enclosure direction is especially relevant when the combiner box is exposed to rooftop or field-side weather conditions.

OEM and Project Supply

Importers and project buyers often need model matching, enclosure direction, and internal device alignment before placing orders.

⎯⎯ Why VIOX

Why Choose VIOX for Combiner Box Supply?

Combiner box selection depends on how the enclosure, voltage class, string layout, and protection stack match the actual solar PV installation environment.

Current Product Coverage

VIOX offers multiple current plastic combiner box configurations across 600V and 1000V models for rooftop, field, and project-side DC collection.

600V and 1000V Direction

The current range covers two important PV voltage classes, which helps buyers quickly narrow down the correct combiner box architecture.

Plastic Enclosure Series

The catalog direction focuses on compact plastic outdoor boxes with PC+ABS enclosure construction and practical wall-mounted installation fit.

Integrated Device Logic

String count, fuse protection, SPD, isolator arrangement, and voltage class are presented together so the product direction is easier to compare.

Better RFQ Readiness

Clear model groups and selection points help buyers move from early comparison to quotation with less back-and-forth.

OEM and Project Matching

When standard models are close but not exact, VIOX can support project-side configuration matching, marking, and OEM discussion.

⎯⎯ FAQ

Frequently Asked Questions

These are the common questions buyers ask when comparing combiner box, solar combiner box, and DC combiner box configurations for real projects.
A combiner box combines the outputs of multiple PV strings into one output or a smaller number of outputs before the inverter or downstream DC equipment, while also organizing internal protection devices and cable routing inside one enclosure.
The main difference is the voltage class the DC combiner box is designed to handle. The correct choice depends on PV string design, inverter architecture, and project voltage requirement.
A solar combiner box often includes string fuse protection, DC surge protective devices, and a DC isolator or switch disconnector, depending on the protection concept used in the PV system.
Choose the string configuration based on the number of PV strings that need to be collected, whether they will be merged into one output or remain independent, and how the inverter-side DC routing is designed.
Plastic combiner box designs are often chosen for lighter weight, compact wall-mounted installation, corrosion-resistant outdoor use, and efficient integration of string protection components inside a sealed enclosure.
Because many projects prefer a ready protection concept instead of specifying every internal component from the start. A combiner box with fuse, SPD, and isolator coordination can simplify comparison, approval, and installation planning.
A PV combiner box is commonly installed near the PV array, on rooftops, in outdoor field locations, or in a DC collection position before the inverter, depending on system architecture.
For fast quotation, send the required system voltage, string count, input-output configuration, required fuse and SPD arrangement, isolator requirement, enclosure preference, installation environment, and quantity.

⎯⎯ Request Quote

Get a Quote for Combiner Box

Ready to source a combiner box for a solar PV project? Contact VIOX Electric for model matching, DC protection alignment, configuration review, and quotation support across current product models and OEM-ready directions.
  • Fast response within 24 hours
  • Model matching for 600V and 1000V systems
  • Fuse, SPD, and isolator configuration review
  • OEM and project support
  • Global export delivery

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