Bussmann FWP-125 NSNBC01 Fast Acting Cylindrical Fuse

The Bussmann FWP-125 NSNBC01 fast-acting cylindrical fuse is a high-speed protection device from Eaton's Bussmann series, designed to safeguard semiconductor power circuits. It is rated at 125 A RMS with voltage ratings of 700 VAC and 700 VDC, enabling use across both AC and DC systems. The fuse provides interrupting capability up to 200 kAIC at 700 VAC and 50 kAIC at 700 VDC, and it is a non-indicating cylindrical fuse built for quick response in power electronics. The NSNBC01 designation identifies this specific variant within the FWP-125 family and it is intended for protecting sensitive loads in equipment such as power supplies, inverters, and motor drives, where fast fault isolation is critical. Check your system for the correct end-termination configuration to ensure proper mounting in your Bussmann fuse blocks or holders, as the FWP series uses multiple end-contact options. With its compact form factor and standardized footprint, the FWP-125 NSNBC01 delivers reliable protection for semiconductor loads while helping maintain uptime in industrial, commercial, and data-center environments.