Sinofuse RS308-HB-4G80A Fuse, 80A 1000VAC/750VDC, aR Fast-Acting Bolt-on, Size 4G - Pack of 10

High-Performance Semiconductor Protection Fuse

The Sinofuse RS308-HB-4G80A is a specialized high-speed bolt-on fuse designed for superior protection of power semiconductor components. Part of the RS308-HB series, this fuse is optimized for high-voltage DC and AC circuits, making it an essential safety component for electric vehicle (EV) systems, battery energy storage systems (BESS), and power conversion equipment like inverters and rectifiers.

As an aR-class fuse, it provides exceptionally fast response to short-circuit conditions, effectively limiting the let-through energy to safeguard sensitive electronics. The Size 4G round-body design features high-conductivity bolt-on terminals for secure mounting and low contact resistance. It is engineered to perform reliably under harsh mechanical conditions, complying with ISO8820 and JASO D622 standards for vibration and environmental impact.

Key Features:

• High Voltage Capability: Specifically designed for high-voltage applications with ratings up to 1000VAC and 750VDC.
• Precision Protection: Features a partial-range (aR) utilization category, ensuring ultra-quick isolation of power semiconductors.
• Excellent Breaking Capacity: Rated for up to 50kA breaking capacity to safely interrupt high-fault currents.
• Industrial Grade Reliability: Compliant with UL248-13 and IEC60269-4 standards, ensuring safety and global interoperability.
• Optimized Electrical Design: Carefully balanced for low power loss and efficient heat dissipation during continuous operation