Littlefuse Unveil its New Line of Littelfuse 1500 VDC Photovoltaic Fuses

The new SPXV series includes string protection fuses from 6 to 20 amps in a 10 x 85 mm design and slightly wider 25 and 30 amp fuses, designed to fit the same holders. The standardized size allows for maximum flexibility of array construction, as fuse rating is often a final step in specification. With eight products under 30 amps, Littelfuse offers the broadest selection of fuse options. All of the new string protection fuses fit into a new 1500V LPXV holder.

The higher amperage SPXN, with six models ranging from 200 amps to 400 amps, also comply with global standards, including UL2579 and IEC 60269-6. These products feature a ventilation-enhancing, cylindrical design, with sturdy melamine construction that meets the standard NH3L package size. The blade and bolt mounting feature provides flexibility in mounting and easy installation and replacement.

Both the high and low amperage models were specifically designed to minimize wattage loss and provide the highest efficiency product for 1500 VDC installations. This not only improves long-term system cost; it also reduces internal cabinet temperatures.

“With our innovative new 1500 VDC product offering, we are well positioned to support the design leaders in the solar industry,” stated Dan Gilman, Director of Global Sales. “Our work with major OEM partners and our application knowledge have enabled us to develop a 1500 VDC solution that meets global standards and also provides high levels of efficiency.”

The 1500 VDC SPX Series augments the SPF and SPFJ fuses for 1000 VDC protection, as well as other photovoltaic protection products. Littelfuse is a leader in the solar market, providing a broad range of products and support for customers around the globe.

For more information about the new photovoltaic fuses from Littelfuse, visit us at Intersolar Hall B, stand 414 or visit our website at littelfuse.com/solar.