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  • Vmaxpower 4 Strings Solar DC Combiner Cabinet for on Grid Off Grid Solar Energy System PV Junction Box
  • Vmaxpower 4 Strings Solar DC Combiner Cabinet for on Grid Off Grid Solar Energy System PV Junction Box
  • Vmaxpower 4 Strings Solar DC Combiner Cabinet for on Grid Off Grid Solar Energy System PV Junction Box
  • Vmaxpower 4 Strings Solar DC Combiner Cabinet for on Grid Off Grid Solar Energy System PV Junction Box
  • Vmaxpower 4 Strings Solar DC Combiner Cabinet for on Grid Off Grid Solar Energy System PV Junction Box
  • Vmaxpower 4 Strings Solar DC Combiner Cabinet for on Grid Off Grid Solar Energy System PV Junction Box
Vmaxpower 4 Strings Solar DC Combiner Cabinet for on Grid Off Grid Solar Energy System PV Junction Box
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Vmaxpower 4 Strings Solar DC Combiner Cabinet for on Grid Off Grid Solar Energy System PV Junction Box

  • 1 - 99 Sets
    $140
  • 100 - 199 Sets
    $133
  • 200 - 499 Sets
    $126
  • >= 500 Sets
    $119

Customization:

Customized logo（Min.Order: 1000 pieces）
Graphic customization（Min.Order: 1000 pieces）
Customized packaging（Min.Order: 1000 pieces）
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Vmaxpower 4 Strings Solar DC Combiner Cabinet for on Grid Off Grid Solar Energy System PV Junction Box

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • DC Power Aggregation: Combines electrical outputs from up to 4 solar panel strings into a single output, streamlining power management for on-grid and off-grid solar energy systems.
  • System Compatibility: Designed for both residential and commercial applications, supporting grid-tied installations and standalone off-grid setups like rural power solutions or remote facilities.

Key features

  • 1. Weather-Resistant Plastic Construction

    • With rugged, weather-resistant plastic material, you can ensure long-lasting durability in outdoor environments, outperforming standard plastic enclosures*.

  • 2. Transparent Cover for Seamless Monitoring

    • With a transparent cover design, you can monitor internal components without opening the box, saving ~20% in maintenance time compared to traditional models*.

  • 3. 4-String Configuration for Expanded Capacity

    • With a 4-string configuration capability, you can expand system capacity by up to 33% compared to 3-string models, optimizing energy output for larger installations*.

  • 4. Adaptable On-Grid/Off-Grid Compatibility

    • With adaptable on-grid/off-grid compatibility, you can deploy the system in diverse environments, from residential rooftops to remote off-grid locations*.

  • 5. Integrated Safety Features for Compliance

    • With integrated safety features like circuit breakers and grounding provisions, you can meet essential electrical safety standards for secure solar system operation*.

Product details

Vmaxpower 4 Strings Solar DC Combiner Cabinet for on Grid Off Grid Solar Energy System PV Junction Box

The Vmaxpower 4 Strings Solar DC Combiner Cabinet is a rugged, modular solution for on-grid/off-grid solar systems. Designed with a transparent polycarbonate cover and UV-resistant plastic housing, it combines durability and convenience for seamless system monitoring and expansion.

Technical specifications

FeatureSpecificationApplication Scenario
Transparent CoverPolycarbonate with UV protectionReal-time monitoring of internal components without opening the cabinet
Modular DesignExpandable up to 8 strings via modulesScaling installations from residential to commercial solar farms
IP65 RatingComplies with IEC 60529 standardsWithstanding dust, moisture, and temperature extremes in outdoor environments
Circuit Breakers4-pole 15A/20A fusesProtecting against overcurrent in residential solar arrays
Durable Plastic HousingUV-resistant ABS plasticEnsuring longevity in harsh outdoor conditions
Warranty3 months to 1 yearOffering flexibility for project timelines and budgets

Customization guide

Adjustable string capacity (up to 8 strings) to accommodate expanding solar arrays. Customizable wiring configurations for unique panel layouts.

Get inspired

With its transparent cover, you can monitor system health instantly. The modular design lets you start small and scale up as your energy needs grow.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Number of Strings468
IP RatingIP54IP65IP67
Warranty3 months6 months1 year
ExpansionFixedExpandableModular
MaterialABS PlasticReinforced PlasticAluminum Alloy

Supplier's note

  1. Technical Breakthroughs:

    • Transparent Cover: Non-invasive monitoring reduces downtime.
    • Modular Design: Scalability cuts future upgrade costs by 40%.
    • IP67 Rating: Pro model handles submersion, ideal for flood-prone areas.

  2. Version Selection Guide:

    • Base Model: Best for small residential systems needing basic protection.
    • Advanced Model: Suited for medium-scale farms requiring scalability and IP65 resilience.
    • Pro Model: Industrial/commercial setups benefit from IP67 durability and 1-year warranty.

With the Pro’s IP67 rating, you can install in coastal regions with saltwater exposure. Its aluminum alloy housing ensures thermal stability, extending panel lifespan by 25%. Pair this with the modular design to build grid-tied systems up to 24kW effortlessly.

Frequently asked questions

  • Which solar combiner box model suits small-scale on-grid/off-grid systems?

  • How to maintain the Vmaxpower 4-String combiner box’s transparent cover?

  • Plastic vs Metal: Which material is better for outdoor solar combiner boxes?

  • Can the Vmaxpower combiner cabinet handle future solar panel additions?

  • Is the Vmaxpower combiner box UL/CE certified for safety compliance?

  • What safety features does the Vmaxpower 4-String combiner have against overcurrent?

  • What warranty does the Vmaxpower solar combiner cabinet offer for outdoor use?

  • How easy is it to install the Vmaxpower DC combiner cabinet with pre-labeled wiring?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Material ConstructionOutdoor installationsPlastic Housing (IP65 rated) (▲ Base vs Industry: Metal often used)Lightweight, corrosion-resistantLess durable in extreme heat/cold
Transparent CoverMaintenance-heavy environmentsPolycarbonate Cover (ASTM D638) (▲ Advanced: Scratch-resistant coating)Non-invasive monitoringSusceptible to scratches without coating
ModularityExpanding systemsModular Expansion Slots (Base: 4 strings ▲ Advanced: 8 strings)Scalability for future growthHigher initial cost for advanced configurations
Circuit Breaker CapacityHigh-current systems60A DC Breakers (IEC 60947-2 compliant) (▲ Advanced: 100A option)Enhanced overcurrent protectionMore complex installation and maintenance
Warranty DurationLong-term projects3-12 months (Industry Standard: 2-5 years)Cost-effective entry-level optionLimited coverage compared to competitors
Safety ComplianceRegulated installationsUL 1449 Grounding (IEC 62109) (▲ Advanced: IP67 rating)Meets strict safety regulationsRequires certified installers for compliance

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