Mersen A130UD73TTI400 / B301048 Protistor Size 73 aR Square Body High-Speed Fuse, 1300VAC, 400A

The Mersen Protistor® size 73 aR series provides state-of-the-art semiconductor protection for power conversion equipment including inverters, motor drives, and UPS systems. These ultra-fast-acting square body fuses are engineered to provide maximum flexibility and ultimate protection for diodes, thyristors, and IGBT devices. Featuring silver-plated contact surfaces and a non-magnetic design, these fuses ensure high interrupting ratings and low I²t levels to limit let-through energy during fault conditions. This specific TTI model features 1/2in-13 unified coarse threaded terminals for secure mounting in high-power applications.