Bussmann KBC-200USNT Fuse

The Bussmann KBC-200USNT is a North American style, high-speed semiconductor fuse from the KBC family, designed to protect power-electronic loads by rapidly interrupting overcurrent events. This 200-amp cartridge-style fuse is intended for stud-mount installation and features a non-indicating design, enabling a compact protection solution within power-converter, inverter, and other high-current semiconductor circuits. It is rated for up to 600 VAC operation and provides a 200 kA interrupt rating, allowing it to handle severe fault conditions without unnecessary nuisance tripping. The KBC-200USNT’s form factor (cartridge body, stud terminals) is compatible with Bussmann KBC-series holders and assemblies used in industrial and commercial electrical protection schemes. This fuse is chosen when fast clearing of faults in high-current semiconductor paths is critical, such as in motor drives, power supplies, battery charging systems, and DC-link protection in robust control equipment. As with all semiconductor fuses in this family, verify exact voltage and interrupt specifications for your specific installation from the supplier’s datasheet and confirm proper mounting, clearance, and electrical code compliance.