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*This article is a Japanese translation of a Bourns press release by Macnica.
aR class industrial fuse links for high-voltage DC overcurrent protection in power conversion and energy storage systems.
Riverside, California – June 2, 2026 – Bourns, a leading supplier of electronic components for power, protection, and sensing solutions, announced the POWrFuse™ high-power fuse series, PF-000100E, PF-01N100E, and PF-1NH100E, expanding its portfolio of high-power industrial fuse links. This series provides aR-class overcurrent protection for semiconductor and battery-based DC systems operating at up to 1000 VDC. These fuse links are designed to meet the high breaking capacity requirements demanded by modern power conversion and energy storage architectures.
As voltage and fault current capabilities continue to expand in power converters, battery energy storage systems, and DC distribution architectures, designers face the challenge of reliably protecting delicate semiconductor devices and battery subsystems while avoiding unnecessary system complexity.
High-voltage DC and high-speed failure conditions require fuse solutions that maintain predictable interruption characteristics while complying with multiple international standards. In applications such as DC common bus systems and charging infrastructure, inadequate overcurrent protection can lead to component damage, system downtime, and even safety risks. The PF-000100E, PF-01N100E, and PF-1NH100E series aim to address these challenges with standardized, high-interruption capacity fuse designs for demanding DC environments.
"High-voltage DC systems have unique requirements for fuse performance, particularly in semiconductor and battery protection applications," says Shawn Yu, fuse product line manager at Bourns. "The PF-000100E, PF-01N100E, and PF-1NH100E series are developed to meet relevant aR and aBat standards and address the voltage and interruption current levels commonly required in industrial equipment and energy storage designs," he adds.
Main features
- Compliance with aR and aBat standards: Depending on the series, it complies with the requirements of UL248-13 (aR class), IEC60269-4 (aR class), and IEC60269-7 (battery storage systems).
- High DC voltage rating: Supports systems up to 1000VDC for semiconductor and battery protection applications.
- High breaking capacity: Supports breaking currents up to 50kA in the target series.
- Environmental compliance: RoHS compliant and halogen-free according to Bourns' definition.
Electrical characteristics
|
model number |
Fuse class |
Rated voltage |
Breaking current |
Applicable standards |
|
PF-000100E |
aR / aBat |
1000VDC |
50kA |
UL 248‑13 IEC 60269‑7 |
|
PF-01N100E |
aR |
800VDC ～ 1000VDC |
50kA |
IEC60269-4 |
|
PF-1NH100E |
aR |
1000VDC |
50kA |
IEC60269-4 |
Main use
- Power conversion equipment
- DC System (PF-000100E)
- DC Common Bus System (PF-01N100E Series / PF-1NH100E Series)
- Battery Energy Storage System (BESS)
- DC charging equipment
Supply status
The PF-000100E, PF-01N100E, and PF-1NH100E series are currently available for purchase.
For more details, please visit the Bourns website.
product page
For detailed information on the PF-000100E, PF-01N100E, and PF-1NH100E series, please visit the Bourns page.
Inquiry / Quotation
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