Fuse protection built into the connector. F4C series carries a 10.3 × 85 mm or 10.3 × 38 mm fuse, rated up to 1500V TÜV/UL with IP68 sealing — so a string fault clears at the connector instead of taking out the whole array.
A fuse connector is a small component, but it decides what happens when a string faults.
When current exceeds the fuse rating, the element interrupts the fault at the string level instead of tripping the combiner box or inverter input.
The fuse and the connector share the same body. Fewer parts in the BOM, fewer joints to fail, less space inside the enclosure.
F4C models accept fuse ratings from 1A to 30A, so the protection level can be matched to the module's maximum series fuse rating.
PPE insulation, UL94-V0 flame class and IP68 sealing cover the connector for -40°C to +85°C outdoor service.
Three F4C models cover 1500V and 1000V/1100V-class systems with two fuse lengths.
| Specification | F4C-200-1085 | F4C-201-1085 | F4C-212-1038 |
|---|---|---|---|
| Fuse Specification | 10.3 × 85 mm | 10.3 × 85 mm | 10.3 × 38 mm |
| Fuse Rating | 1–30A | 1–30A | 1–30A |
| Rated Voltage | 1500V TÜV / UL | 1500V TÜV / UL | 1000V / 1100V TÜV, 600V UL |
| Test Voltage | 12kV (TÜV) | 12kV (TÜV) | 8kV (TÜV) |
| Contact Material | Tin-Plated Copper | Tin-Plated Copper | C3602, Tin Plated |
| Contact Resistance | <5mΩ | <5mΩ | <5mΩ |
| Protection | IP68 | IP68 | IP68 |
| Operating Temperature | -40°C to +85°C | -40°C to +85°C | -40°C to +85°C |
| Cable Cross Section | 4.0 / 6.0 / 10.0 mm² | 4.0 / 6.0 / 10.0 mm² | 2.5 / 4.0 / 6.0 / 10.0 mm² |
| Cable Gauge | 12 / 10 / 8 AWG | 12 / 10 / 8 AWG | 14 / 12 / 10 / 8 AWG |
| Flame Class | UL94-V0 | UL94-V0 | UL94-V0 |
| Safety Class | II | II | II |
Fuse selection must consider the PV module's short-circuit current, maximum series fuse rating, cable ampacity, system voltage and applicable installation requirements.
Under normal operation, the fuse element passes the string current with contact resistance under 5mΩ, so losses stay low.
A reverse string fault or short circuit drives the current above the fuse rating.
The fuse element interrupts the current at the connector, protecting the cables, module and downstream equipment.
Fuse rating must be matched to the string design — it is a system decision, not a connector feature.
String-level fuse protection in small PV arrays with limited enclosure space.
Protected connections for rooftop and ground-mount commercial arrays.
1500V fuse connectors for large arrays where string isolation matters.
The compact 10.3 × 38 mm F4C-212 suits junction boxes and tight module-level runs.
F4C fuse connectors are MC4-compatible. Physical fit alone is not enough — verify the mating combination before mixing brands.
Confirm voltage, current, cable and connector ratings before combining products.
Check the locking mechanism, contact geometry and engagement of the full connector pair.
The applicable certification for the combined connection should be verified for the specific project.
Six controlled steps from incoming material to release, at our Dongguan production facility.
Incoming materials checked for dimensions, plating and electrical properties.
Housing, contacts and fuse elements positioned and assembled under controlled process.
Cable preparation and terminal crimping to the specified cross section.
Dedicated equipment tightens the caps consistently for a secure seal and lock.
Conductivity and contact resistance verified against specification.
Appearance, dimensions, quantity and batch traceability checked before release.
Certification scope varies by model. Confirm the applicable certificate for the specific product before quoting.
For solar distributors, EPC companies, installers and brands that need fuse connectors matched to their BOM.
We confirm fuse rating, voltage, cable size and certification against your specification before quotation.
Pre-assembled fuse connectors on PV cable, cut and crimped to your lengths.
OEM labeling and packaging can be arranged for qualified projects.
Packaging adapted for distribution channels or direct project supply.
Key questions before ordering solar fuse connectors.
Send the fuse rating, system voltage, cable size, quantity and required certification. We will reply with the recommended model, datasheet and quotation.
We normally respond within 24 hours.
Email: carroll.xue@treasol.com
WhatsApp: +86 186 8861 9157
Chat on WhatsApp
