PV String Fuse Box for Overcurrent Protection

The WDB9F4-1000 pv combiner box is a highly efficient protection device specifically designed for solar power generation systems. It features a four-in, one-out structure, supports 40A current and 1000V DC voltage, and is suitable for various types of photovoltaic arrays. Its pre-wired photovoltaic string design simplifies the installation process, while the built-in fuse circuit breaker provides overcurrent protection, ensuring the system operates safely and stably. The product is made of weather-resistant PC/ABS material, with dimensions of 233×213×112mm, combining compactness and durability. In addition, the fuse box is compatible with IEC and UL certified connection terminals, adapts to a variety of wire diameters and voltage ratings, and is widely applicable to different photovoltaic application scenes, providing reliable protection for solar power generation systems.
| Description | No.of input | No.of output | MPPT | Max. voltage | Max. current |
Four in one out 40A 1000V DC Pre-wired PV string box | 4 | 1 | 1 | 1000V DC | 40A |
| Fuse disconnector | KCF2-25/PVCF10 | Connection terminal | IEC rating | UL rating | |
| Rated voltage of fuse (Ue) | 1000V DC | Rated voltage | 1000V | 600V | |
| Rated current of fuse (le) | 10A | Rated current | 41A | 40A | |
| Fuse size | 10×38mm | Connection (Solid wire) wire range (Stranded wire) | 0.2-10mm² | 24-8AWG | |
| Rated breaking capacity | 25kA | 0.2-6mm² | 24-10AWG | ||
| Class of operation | gPV | Rated impulse withstand voltage | 8kV | – | |
| Standard compliance | IEC 60947, IEC 60269 | Standard compliance | IEC 60947-7-1 | UL1059 | |
| Certificate | TUV | Certificate | CE | UL | |
| Enclosure | WDB9 |
| No.of module | 9 |
| Material | PC/ABS |
| Protection degree (IEC60529) | IP65 |
| Impact resistance (IEC62262) | IK08 |
| Color | RAL7035 |
| Dimension(mm) | 233×213×112 |
| Standard compliance | IEC62208 |
| Certificate | CE |
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