Sinofuse RS308-HB-2H50A Fuse, 50A 1000VAC/750VDC, aR Fast-Acting Bolt-on, Size 2H - Pack of 10

High-Speed Bolt-on Semiconductor Protection Fuse

The Sinofuse RS308-HB-2H50A is a specialized high-speed fuse engineered for the protection of power semiconductor devices. With a 50A current rating and a Size 2H bolt-on configuration, this fuse is designed to provide ultra-fast short-circuit protection in high-performance power electronics environments. It is widely utilized in electric vehicle (EV) charging systems, battery energy storage systems (BESS), and industrial power converters.

Classified as an aR utilization category fuse, the RS308-HB series is optimized for partial-range protection of semiconductors. It features an extremely low let-through value, which is essential for preventing thermal or electrical damage to sensitive components like thyristors, IGBTs, and diodes. The Size 2H bolt-on (flush end) design offers a high-integrity mechanical connection, ensuring low contact resistance and stable performance even in applications subject to high levels of vibration or thermal cycling.

Key Features:

• Precision Semiconductor Protection: Tailored aR characteristics ensure ultra-fast response to fault currents, safeguarding expensive power modules.
• Broad Voltage Compatibility: Rated for up to 1000V AC and 750V DC, making it ideal for high-voltage DC bus architectures and industrial AC grids.
• Low Power Dissipation: Designed for high efficiency with minimal power loss, reducing heat generation within the electrical cabinet.
• Robust Bolt-on Mounting: The 2H physical size provides a secure, vibration-resistant mount directly to busbars or fuse bases.
• Industry Compliance: Manufactured to meet IEC 60269-4 and UL 248-13 industrial standards for safety and reliability in critical power applications.