Optimize and safeguard your solar energy infrastructure with our High Safety Insulated Solar Combiner Box. Specifically engineered for commercial, industrial, and residential outdoor photovoltaic (PV) projects, this premium combiner box synthesizes multiple DC inputs from solar strings into a single, unified output.
Built from high-performance, weather-resistant insulation materials, it delivers maximum protection against extreme environmental hazards while integrating critical safety mechanisms, including overcurrent protection, surge suppression, and rapid DC isolation. Whether you are installing a utility-scale solar farm or a robust rooftop array, this combiner box ensures long-term operational continuity, system efficiency, and structural safety.
| Technical Parameter | Specifications & Standards |
|---|---|
| Application Environment | Outdoor Photovoltaic (PV) Systems |
| Max DC Voltage | 1000V DC / 1500V DC Compatible |
| Number of PV Strings | 4-String / 6-String / 12-String / 24-String Modules |
| Ingress Protection Rating | IP65 / IP66 Weatherproof Standard |
| Enclosure Material | High-Impact Polycarbonate (PC) / Fiberglass Reinforced SMC |
| Insulation & Safety | Class II Double Insulation, Flame Retardant UL94-V0 |
| Surge Protection Device (SPD) | Type 2 DC SPD (In: 20kA, Imax: 40kA) |
| DC Circuit Breaker / Fuse | High-Voltage DC Fuses (Typically 15A/20A/32A) |
| Certifications | TUV, CE, RoHS, ISO9001 Compliant |
Safety in solar engineering begins with material isolation. The housing is molded from high-grade synthetic materials (Polycarbonate or SMC composite) that provide excellent electrical insulation properties. This completely eliminates the risk of electrical leakage or chassis electrification common with traditional metal boxes, ensuring total safety for maintenance crews.
Outdoor PV installations must withstand decades of environmental stress. Featuring an anti-aging, continuous polyurethane sealing gasket, our combiner box blocks out windblown dust, driving rain, snow, and ambient humidity. It is fully UV-stabilized, meaning it will not crack, discolor, or degrade under continuous exposure to intense solar radiation.
Solar components running under high-voltage DC generate significant operational heat. This enclosure features integrated passive ventilation valves or specialized cooling configurations that regulate internal air pressure, prevent condensation buildup, and maintain stable operational temperatures without compromising the waterproof seal.
A: Yes, we offer distinct models rated for either standard 1000V DC configurations or advanced high-efficiency 1500V DC commercial systems. Please specify your system voltage requirements during procurement.
A: Standard configurations utilize precision DC fuses for string protection. If your specific PV module configuration or shading profile requires anti-reverse diodes, they can be integrated seamlessly into a custom order.
A: Absolutely. The box comes equipped with pre-molded, highly reliable PG waterproof cable glands or knockouts that ensure a clean, airtight lock with standard solar cables and electrical conduits.