B2B Photovoltaic Sourcing for Antioquia

Solar Combiner Box Manufacturers & Exporters for Medellín

High-Altitude Dielectric Isolation, Multi-Channel Type 1+2 Lightning Surge Protection, and RETIE-Compliant DC Combiners Precision Engineered for the Aburrá Valley Microclimate.

Export-Grade Hardware Portfolio

Integrated Photovoltaic & Storage Balance of Systems

Pre-engineered string distribution cabinets, hybrid generation packages, and scalable high-voltage LiFePO4 battery architectures designed to match Colombian grid interconnection benchmarks.

Hybrid Ready 8kW 10kW 15kW On-Off Grid Solar System Full Set
Solar Systems

Customized Factory Price 8kW 10kW 15kW On-Off Grid Solar System Full Set with Mono Solar Panel & Lithium LiFePO4 Battery

  • Dual MPPT + DC Combiner Array
  • Tier-1 Mono TOPCon Modules
  • CAN-Bus BMS Integration
Technical Specs
Commercial HV Commercial High Voltage LiFePO4 Energy Storage System
Commercial ESS

SUNDTA SDT-280 Commercial High Voltage LiFePO4 Energy Storage System 40-100kWh Air-Cooled Battery Cabinet for Hybrid/Off/On-Grid

  • High-Voltage DC Bus (600V-900V)
  • Industrial Aerosol Fire Isolation
  • 280Ah Prismatic Grade-A Cells
Technical Specs
Modular Stack Sundta Stacked Modular LiFePO4 Battery
Residential Storage

Sundta Stacked 10kWh 20kWh 30kWh Modular LiFePO4 Battery Stacked Solar Energy Storage Battery for Home Solar

  • Quick Plug-and-Play Assembly
  • 6000+ Cycles at 90% DoD
  • Multi-Inverter Protocol Matching
Technical Specs
Turnkey Kit 20kw Complete Set Solar Energy Power Storage System
Commercial Solar

20kw Complete Set Solar Energy Power Storage System 20KW 30KW 25kw 35kw Hybrid Solar Panel Electric Power Generation Kit

  • Multi-String DC Protection Cabinet
  • CREG 174 Autonomy Sizing
  • Three-Phase Industrial Sync
Technical Specs
51.2V Low Voltage Wall Mounted LiFePO4 Solar Battery
Solar Batteries

Fast Shipping Stock Solar Battery 48V 51.2V 100Ah 200Ah 5kWh Wall Mounted LiFePO4 Local Warehouse

  • Standard 19-Inch Rack Compatible
  • High Energy Density Lithium Iron
  • RS485 / RS232 Remote Monitor
Technical Specs
IP65 Sealed Sundta IP65 10kWh Wall Mounted Battery
Wall Mounted ESS

Sundta IP65 10kWh 51.2V 200Ah Wall Mounted LiFePO4 Battery for Home Solar Storage with Smart BMS

  • Outdoor Weather-Tight IP65 Enclosure
  • Over-Current & Thermal Protection
  • Wall-Bracket Simplified Mounting
Technical Specs
2026 Edition Sundta 10KW 12KW Hybrid Solar System
Hybrid System

2026 Sundta Low Price 10KW 12KW Hybrid Solar System for Home Use with Lifepo4 Battery and BMS System

  • Split-Phase 120V/240V Grid Sync
  • Fast Sub-10ms UPS Failover
  • Combiner Pre-Wired Harness
Technical Specs
Utility Scale All in One Outdoor ESS Cabinet
Industrial Cabinets

All in One Energy Storage Outdoor Cabinet 100kw 200kw 500kw Lifepo4 Solar Battery Energy Storage Systems Residential Energy

  • Liquid / Air Cooled Thermal Loop
  • Integrated Master DC Combiner
  • Utility-Grade Microgrid Dispatch
Technical Specs
2 GW
Annual Manufacturing Output
500 MW+
Global Projects Installed
38 Pat.
Proprietary Technology Patents
TÜV
On-Site Assessed & CE Certified
Engineering White Paper

Solar Combiner Box Architecture for Medellín's Elevation & Microclimates

Photovoltaic engineering in the Department of Antioquia presents distinctive physical and electrical challenges. Engineering a long-term reliable DC string combiner demands far more than basic off-the-shelf plastic enclosures.

Extreme Keraunic Activity & Transient Mitigation

The Aburrá Valley records some of Colombia's highest ground flash densities (GFD > 15 flashes/km²/year) due to sharp thermal convective updrafts across the Cordillera Central. Standard commercial combiners using only Type 2 varistors frequently suffer premature thermal breakdown.

Our Medellín-bound DC combiner enclosures integrate high-energy coordination Type 1+2 / Class I+II DC Surge Protective Devices (SPDs). Featuring maximum continuous operating voltages (Ucpv) calibrated up to 1200V / 1500V DC and impulse discharge currents (Iimp) of 12.5kA (10/350 µs), our units safely suppress induced atmospheric lightning transients before dangerous overvoltages penetrate sensitive inverter MPPT stages.

Type 1+2 DC SPD Iimp 12.5kA (10/350µs) Thermal Disconnect

Altitude Derating & Dielectric Clearance at 1,500m+

Medellín sits between 1,495m and 1,800m above sea level, with surrounding industrial installations in Rionegro and Oriente Antioqueño reaching over 2,100m. At these elevations, lower atmospheric pressure decreases the dielectric strength of ambient air and impairs convective heat dissipation.

In strict compliance with IEC 60664-1 clearance correction factors, our export-grade combiner boxes apply an altitude derating coefficient (multiplying minimum creepage distances by 1.15x–1.20x). DC disconnect switches, busbars, and 10x38mm / 10x85mm gPV fuse bases are physically spaced to eliminate continuous electrical tracking, corona arcs, and catastrophic short-circuits.

IEC 60664-1 Derated 1500V Isolation Gap Anti-Tracking Resins

RETIE Regulatory Conformity & Ingress Protection

Connecting to Empresas Públicas de Medellín (EPM)'s distribution grid demands full adherence to the Reglamento Técnico de Instalaciones Eléctricas (RETIE). Articles governing photovoltaic balance of systems mandate non-combustible, UV-stabilized, and corrosion-resistant enclosures.

We fabricate combiner enclosures utilizing either UV-stabilized halogen-free polycarbonate or heavy-duty powder-coated cold-rolled steel / AISI 304 stainless steel. Certified up to IP65 / IP66 ingress protection and IK10 mechanical impact ratings, they withstand intense equatorial UV irradiance, tropical monsoon humidity, and sudden mountain downpours without internal condensation.

RETIE Art. 20.15 Compliant IP66 / NEMA 4X IK10 Mechanical Enclosure
Engineering Datasheet Matrix

Standardized & Custom DC Combiner Specifications for Importers

Engineered for seamless integration with leading split-phase, three-phase, and commercial string inverters across residential, C&I, and utility solar arrays.

Series Model Input / Output Channels Rated Voltage (Un) String Overcurrent Fuse (gPV) Surge Protection (SPD) Switch Disconnect Rating Target Colombian Application
RJV-PV-04/1-1000V 4 Strings In / 1 MPPT Out 1000V DC 15A / 20A / 30A (1000V) Type 1+2 DC, In 20kA, Imax 40kA 1000V 63A Rotary Isolator Residential Villas (El Poblado, Envigado)
RJV-PV-08/2-1000V 8 Strings In / 2 MPPT Out 1000V DC 15A / 25A / 32A (1000V) Type 1+2 DC, In 20kA, Imax 40kA 1000V 125A Load-Break Switch C&I Rooftops (Itagüí, La Estrella)
RJV-PV-16/1-1500V 16 Strings In / 1 Main Out 1500V DC 20A / 25A / 30A (1500V) Type 1+2 DC, Iimp 12.5kA, Up < 3.8kV 1500V 315A Motorized / Manual Switch Ground Mounts (Oriente & Cauca Basin)
RJV-SMART-24/2-1500V 24 Strings In / 2 Busbar Out 1500V DC 30A 1500V DC Fast-Acting Type 1+2 Class B/C SPD with Remote Signal 1500V 400A High-Capacity Disconnect Utility Scale & Agro-Industrial Microgrids
Get a Quote
Deployment Ecosystems

Engineered for Medellín's Primary Solar Topographies

From densely populated urban industrial complexes to high-end suburban residences and outlying agricultural corridors across Antioquia.

C&I Rooftops in Itagüí, Envigado & Girardota

Medellín's manufacturing corridor along the Aburrá River features massive metallic warehouses and textile production plants. Our multi-string combiners isolate localized roof faults, consolidate cabling runs, and allow factory maintenance crews to isolate individual solar arrays via lockable rotary DC disconnect switches without shutting down critical industrial operations.

High-End Residential Self-Generation (El Poblado & Llanogrande)

Under CREG 174 regulatory frameworks, residential self-producers (AGPE) require clean, compact, aesthetically unobtrusive balance of systems that pass rigorous EPM inspection. Our 4-in-1-out and 6-in-2-out combiner units feature IP65 fire-retardant enclosures, transparent viewing lids for inspection, and factory-crimped IP68 MC4 connectors for rapid zero-error mounting.

Agro-Industrial Microgrids in Southwest Antioquia

Coffee washing facilities, avocado packaging warehouses, and livestock centers in Jericó, Andes, and Támesis rely on off-grid and weak-grid solar-plus-storage. Our combiner boxes feature wide operating temperatures (-30°C to +70°C), internal condensation drainage valves, and optional RS485 Modbus RTU monitoring modules to communicate remote string current telemetry over cellular gateways.

Utility Distributed Generation (GD) & Commercial Solar Parks

Large-scale distributed generation projects across Santa Fe de Antioquia and the Magdalena Medio require 1500V DC smart combiners. Our utility solutions integrate high-precision Hall effect current sensors, internal temperature sensors, and multi-channel monitoring boards to detect degraded strings, blown fuses, or ground faults in real time before yield loss occurs.

Regulatory & Economic Momentum

The Expanding Solar Market in Medellín: CREG 174 & Ley 1715

Understanding the statutory and financial drivers accelerating B2B photovoltaic equipment procurement across the Department of Antioquia.

Streamlined Interconnection under CREG 174

The Comisión de Regulación de Energía y Gas (CREG) issued Resolution 174 of 2021, vastly accelerating small-scale distributed generation (Autogeneración a Pequeña Escala - AGPE up to 1 MW). For systems below 100 kW, EPM provides an expedited connection procedure, provided that the balance of systems demonstrates strict technical conformance, certified overvoltage suppression, and lockable safety disconnects.

Standardizing on factory-certified combiner boxes eliminates field inspection rejections by EPM engineers and ensures seamless net-metering bidirectional trade of surplus generation.

Aggressive Tax Incentives: Law 1715 & Law 2099

Colombia's Law 1715 of 2014, updated by Law 2099 of 2021 (Energy Transition Law), offers compelling financial advantages for corporate solar investments:

  • 0% VAT (IVA): Exemption from value-added tax on imported solar modules, inverters, and combiner boxes certified by UPME.
  • Import Duty Waiver: Exemption from custom tariffs on qualified renewable energy capital goods.
  • Income Tax Deduction: Deduction of up to 50% of the total solar investment over a 15-year period.
  • Accelerated Depreciation: Annual asset write-offs up to 33.3% on electrical balance of systems.

Surging Grid Electricity Tariffs in Antioquia

Driven by natural gas supply constraints, El Niño meteorological impacts on hydroelectric reserves, and escalating transmission system charges, commercial retail electricity tariffs in Medellín have frequently surpassed $850–$1,050 COP per kilowatt-hour.

This economic pressure has caused an unprecedented migration among commercial manufacturers, hotel chains, and educational facilities toward rooftop solar self-consumption. Reliable DC combiners prevent single-string catastrophic failures from compromising multimillion-peso payback schedules.

Why Importers Partner with Us

Anhui RJV New Energy: Direct Factory Manufacturing Precision

Combining complete vertical photovoltaic production with rigorous international certification and dedicated international trade logistics.

TÜV Rheinland Assessed

Our manufacturing operations have successfully completed rigorous on-site supplier verification audits conducted by TÜV Rheinland. Full inspection documentation, CE declarations of conformity, and IEC factory audit dossiers are provided with every export container.

2 GW Automated Production

Operating advanced fully automated module assembly lines, automated PCB surface-mounting facilities, and precision sheet-metal stamping workshops with an annual capacity exceeding 2 GW and over 12 years of specialized PV engineering expertise.

Complete PV Bill of Materials

Eliminate cross-vendor compatibility failures. We manufacture and consolidate your entire PV bill of materials: Tier-1 N-type TOPCon panels, hybrid and string inverters, certified DC combiners, and LiFePO4 battery storage systems matched prior to container loading.

7×24 Direct Engineering

From sizing your DC combiner string configurations and calculating voltage drop parameters to providing technical dossiers for UPME / RETIE approvals, our senior electrical engineering team is available across global business hours.

Procurement Clarity

Frequently Asked Questions by Medellín Solar EPCs & Importers

Clear, definitive engineering and commercial answers to simplify your import operations through Colombian customs and regional grid approvals.

Are your solar combiner boxes certified for RETIE compliance in Colombia?
Yes. All internal switchgear components, terminal blocks, fuse holders, and surge arrestors integrated into our combiner boxes carry international IEC 61439-2, IEC 60947-3, and IEC 61643-31 test certifications from accredited testing laboratories (such as TÜV Rheinland). These test reports satisfy the documentary requirements of Colombian Organismos de Certificación Acreditados (ONAC) for obtaining RETIE product conformity certificates. We supply comprehensive technical datasheets, test certificates, and factory declarations with every commercial shipment.
Why do solar installations in Medellín require Type 1+2 DC surge arrestors?
Medellín and the broader Antioquia territory exhibit severe keraunic levels due to the valley's orographic topology. Lightning strikes often generate immense induced overvoltages along exposed rooftop array loops. While ordinary Type 2 SPDs only clamp moderate switching transients (8/20 µs wave shape), our Type 1+2 hybrid arrestors incorporate high-energy spark gaps and heavy-duty metal oxide varistors (MOVs) capable of discharging direct and nearby lightning currents (10/350 µs wave shape) up to 12.5kA per pole. This prevents catastrophic inverter bridge destruction and reduces fire hazard.
How do you compensate for altitude derating at Medellín's elevation (1,500m - 2,200m)?
Under IEC standard 60664-1, altitudes exceeding 1,000 meters reduce atmospheric air pressure, decreasing dielectric breakdown voltage and weakening air-cooled thermal dissipation. For systems installed in Medellín, Envigado, or Rionegro, we engineer our combiner boxes with a 15% to 20% insulation clearance margin. For a 1000V DC operational design, we utilize 1200V-rated internal insulation, upgraded phase barriers, and over-dimensioned copper busbars with cross-sectional conductivity designed to limit thermal rise to under 30K above ambient temperatures.
What is the typical shipping transit time and route to Medellín?
Ocean freight from Shanghai, Ningbo, or Shenzhen ports generally discharges at Puerto de Buenaventura (Pacific route, 24 to 32 days maritime transit) or Puerto de Cartagena (Atlantic route, 28 to 36 days maritime transit). From Buenaventura or Cartagena, overland bonded container trucking delivers cargo directly to customs bonded warehouses in Medellín (e.g., Zona Franca de Rionegro or Medellín customs yards) within 24 to 72 hours. We provide full FOB, CFR, CIF, and EXW incoterms, along with legalized Bill of Lading, Packing Lists, and Commercial Invoices formatted for DIAN customs clearance.
Can your combiner boxes integrate string monitoring for SCADA or EMS?
Yes. Our smart combiner box series features integrated Hall-effect current transducers and precision voltage sampling cards that monitor individual string current, total busbar voltage, cabinet internal temperature, SPD status, and DC breaker state. Data is transmitted via isolated RS485 serial communication using standard Modbus RTU protocol, enabling plug-and-play communication with external SCADA systems, programmable logic controllers (PLCs), or cloud monitoring platforms utilized in Colombian solar farms.
What is your Minimum Order Quantity (MOQ) and sample policy for Colombian EPCs?
We support growing engineering firms and specialized EPCs. For standard 1000V DC combiner boxes, our MOQ starts from just 1 unit for prototype testing and pilot verification. Full project orders or mixed container orders combining solar panels, hybrid inverters, combiner boxes, and lithium batteries qualify for volume factory pricing. Customized OEM labeling, laser-engraved single-line diagrams, and specific cable gland configurations are available for order quantities above 10 units.
Which payment mechanisms and currency terms do you accept?
We routinely transact with Latin American B2B buyers through Telegraphic Transfer (T/T: 30% advance deposit, 70% against Bill of Lading copy), Irrevocable Letters of Credit at sight (L/C), and D/P or D/A terms for established volume clients. Commercial invoices can be issued in United States Dollars (USD) or Chinese Yuan (RMB) to optimize currency conversion rates through your authorized Colombian financial institution.
How is warranty and replacement handled for projects in Antioquia?
Our solar combiner boxes carry a standard 5-year factory warranty, extendable up to 10 years upon agreement. If an internal component (such as a disconnect switch or SPD cartridge) demonstrates a manufacturing defect during the warranty period, we dispatch replacement modular parts via international express courier (DHL / FedEx) within 48 hours to Medellín, minimizing plant downtime. Our factory engineering team also provides digital video diagnostics and remote commissioning guidance directly to your local field technicians.

Equip Your Next Medellín Solar Project with Factory Direct Precision

Whether engineering an industrial rooftop in Itagüí, an off-grid microgrid in rural Antioquia, or a residential self-generation array in El Poblado, consult with RJV New Energy engineers for matched configurations and rapid factory quotes.