Bourns Expands POWrFuse™ Line with New Series Featuring Higher Voltage Rating, Broader Current Range and Versatile Package Options

Bourns® PF-63R50H Series
POWrFuse™ High-Power Fuses
Fuses (Click to enlarge)

New fuses are UL 248-14 and IEC 60127-1 compliant and rated to 500 V to meet the dynamic demands of next-generation power systems

RIVERSIDE, Calif., June 16, 2025 - Bourns, Inc., a leading manufacturer and supplier of electronic components for power, protection, and sensing solutions, today announced it has expanded its POWrFuse™ High-Power Fuse portfolio with a new higher voltage rated series. Bourns engineered the PF-63R50H Series with advanced features and capabilities that are needed in energy storage systems, battery systems and other types of power management systems.

“The increasing demand for higher power density and improved system efficiency, particularly in energy storage systems, industrial automation, and renewable energy applications, is accelerating the need for power fuses with higher voltage and current ratings,” said Jennifer Joseph, vice president of Bourns Protection Division. “Our new PF-63R50H Series POWrFuse™ is specifically designed to align with and support these evolving market requirements.”

Meeting UL 248-14 and IEC 60127-1 fuse standards, the PF-63R50H Series features current ratings from 10 to 40 A, an interrupt rating of up to 30 kA, and is available in cartridge and axial lead options. These features support broader application needs and provide additional R&D flexibility while also meeting system performance and safety requirements.

The Bourns® PF63R50H Series POWrFuse™ High-Power Fuses are available now through Bourns’ authorized distribution partners, and are RoHS* compliant and halogen free**. For more detailed product information, please see: bourns.com/products/circuit-protection/powrfuse-high-power-fuses.

*RoHS Directive 2015/863, Mar 31, 2015 and Annex.

**Bourns considers a product to be "halogen free" if (a) the Bromine (Br) content is 900 ppm or less; (b) the Chlorine (Cl) content is 900 ppm or less; and (c) the total Bromine (Br) and Chlorine (Cl) content is 1500 ppm or less.