Sinofuse Fuse PV312 Series
Part of the PV Series (Photovoltaic Protection)| Rated Voltage: | 1500VDC |
| Rated Current: | 4A - 30A |
| Class: | gPV |
| Size: | 10 x 85 mm |
Product Description
With the solar industry moving towards higher voltage 1500VDC systems to improve efficiency, specialized protection is critical. The Sinofuse PV312 series is engineered to meet this demand, providing reliable protection for string inverters and combiner boxes. Its gPV characteristic ensures it can safely interrupt low-overcurrent faults, such as those caused by reverse currents in a shaded solar array, which standard fuses might fail to clear.
Distributor's FAE Review
"We've seen a massive shift to 1500VDC architectures, and the PV312 is the fuse we recommend for these designs. The key here is the 'gPV' rating. Standard fuses are not designed to handle the slow-burn fault conditions in a solar string. These fuses are. They prevent small faults from escalating into major safety hazards like fires. Their compact 10x85mm cylindrical form factor is also perfect for modern, high-density combiner boxes."
Frequently Asked Questions
Why do I need a special gPV fuse for solar?
Solar panels are current-limited sources, meaning fault currents can be very low (e.g., 1.35 times the nominal current). A gPV fuse is specifically designed to open reliably at these low fault levels, whereas a standard fuse might not open at all, creating a fire risk.
What kind of fuse holder should I use?
You must use a fuse holder rated for 1500VDC. Using a lower-voltage holder can be a serious safety hazard. We can help you select a compatible Sinofuse holder for this series.