Mersen A130UD73TTI900 / J301055 Protistor Size 73 aR Semiconductor Protection Fuse, 1300VAC, 900A

The Mersen A130UD73TTI900 / J301055 is an ultra-fast acting Protistor® size 73 square body fuse-link, engineered for the high-performance protection of power semiconductor devices including diodes, thyristors, and IGBTs. Designed for large-scale power conversion equipment, these fuses provide exceptional current-limiting capabilities and low I²t levels to prevent catastrophic device failure. This unit features "TTI" style 1/2in - 13 unified coarse threaded terminals for secure, high-conductivity mounting. Constructed with silver-plated contact surfaces and non-magnetic materials, it ensures superior cycling durability and minimal power dissipation in demanding industrial environments. This fuse is rated for applications up to 1300VAC with a high interrupting capacity of 150kA.