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Flameproof Outdoor Distribution Panel Assembly With Lockable Safety Protective Door

Categories Outdoor Distribution Panel Assembly
Inputvoltage: DC 600V/1000V/1500V
Numberofinputs: 4 to 12 strings
Maxcurrent: 30A/60A/100A
Protection: Overcurrent, overvoltage, and surge protection
Surgeprotectiondevice: Included with MOV or SPD
Place of Origin: XiaMem,China
Function: Combines multiple solar string inputs into a single output
Cableentry: Multiple cable glands for input/output cables
MOQ: 100
Material: IP65 rated weatherproof plastic or metal enclosure
Payment Terms: TT
Price: negotiable
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Flameproof Outdoor Distribution Panel Assembly With Lockable Safety Protective Door

Flameproof Solar Combiner Box With Lockable Safety Protective Door
Product Overview

Optimize and safeguard your renewable energy system with our industrial-grade Flameproof Solar Combiner Box. Specifically engineered for high-voltage direct current (DC) solar arrays, this distribution hub consolidates power streams from multiple photovoltaic (PV) strings into a single master output.

Constructed from advanced fire-retardant materials and equipped with a Lockable Safety Protective Door, this combiner box provides an impenetrable layer of protection against electrical arcs, thermal overloads, and unauthorized tampering. Whether you are managing a residential rooftop solar system, a commercial facility, or an off-grid solar farm, this enclosure ensures ultimate system reliability, simplified wiring, and strict adherence to international electrical safety codes.

Flameproof Solar Combiner Box with lockable safety door
Technical Specifications
ParameterSpecifications & Standards
Product CategoryPV Solar Combiner Box (DC Side)
Flame Retardancy RatingUL94-V0 (Self-extinguishing, high thermal resistance)
Ingress Protection (IP)IP65 / IP66 Weatherproof & Dust-tight
Max DC Voltage500V / 1000V / 1500V DC Compatible
Supported PV Strings4-String / 6-String / 8-String / 12-String Configurations
Security FeatureLockable Outer Door Latch (Supports Padlocks)
Internal Components IncludedHigh-Voltage DC Fuses, DC Circuit Breaker, DC Surge Protection Device (SPD)
Material CompositionHeavy-Duty, UV-Stabilized ABS/PC or Powder-Coated Steel Chassis
CertificationsCE, TUV, RoHS, ISO9001 Compliant
Core Features & Engineering Advantages
  • Advanced Flameproof & Arc-Resistant Housing: Solar arrays handle immense DC voltages, which carry a higher risk of persistent electrical arcing compared to AC systems. Our combiner box shell is engineered from high-density, flameproof UL94-V0 composite materials. It is designed to fully contain any localized internal thermal faults, mitigating fire hazards and protecting the surrounding building infrastructure.
  • Lockable Safety Protective Door: Safety extends beyond electrical parameters to physical security. The enclosure features a heavy-duty, reinforced protective door with a dedicated integrated locking mechanism. This padlock-compatible latch system prevents unqualified personnel, site intruders, or children from accessing live, high-voltage internal components, ensuring strict site safety compliance.
  • All-in-One Professional Electrical Protection: The interior comes pre-wired and populated with certified industrial protection devices including DC Fuses for individual string protection, DC Surge Protective Device (SPD) for lightning protection, and DC Isolator/Circuit Breaker for rapid manual system shutdown.
  • IP65/IP66 Weatherproof & UV-Stable Design: Engineered for brutal outdoor environments, the box features a continuous, high-elasticity polyurethane sealing gasket that blocks out driving rain, blown sand, and ambient humidity. The outer shell is heavily treated with UV stabilizers to eliminate the risk of structural cracking, fading, or material degradation caused by decades of direct sunlight.
Industrial & Commercial Applications
  • Residential Solar Installations: Houses DC protection components for home rooftop arrays, providing a neat, safe transition point before the inverter line.
  • Commercial & Industrial (C&I) PV Systems: Ideal for factory rooftops and commercial carports that handle multi-string configurations and require lockable security.
  • Off-Grid Solar Energy Storage: Streamlines power input from solar arrays into MPPT charge controllers and battery banks for remote cabins, telecommunication stations, and agricultural water pumps.
Installation & Wiring Efficiency
  • Plug-and-Play MC4 Compatibility: Available with pre-installed waterproof MC4 connectors for toolless, rapid input string connections.
  • Heavy-Duty Internal DIN Rail: Pre-mounted 35mm standard steel DIN rail allows for easy component replacement or upgrading by field technicians.
  • Clean Grounding Terminal: Dedicated, insulated heavy-duty grounding busbar ensures effective dissipation of lightning surges.
Frequently Asked Questions (FAQ)
Why is a lockable door important for a solar combiner box?

DC power from solar panels cannot be easily switched off during daylight. A lockable door is vital to ensure that only certified electricians can open the box, satisfying strict corporate liability and regional building safety regulations.

Does this combiner box protect against direct lightning strikes?

The integrated DC SPD protects against indirect lightning strikes, induced overvoltages, and grid surges. For direct strikes, a comprehensive lightning rod system should be installed on the building structure.

Can I customize the number of string inputs for my specific project?

Yes. We offer flexible manufacturing options ranging from small-scale 2-string residential setups up to 24-string high-capacity industrial configurations.

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