Ferraz Shawmut A6K fuses are fast-acting, current-limiting devices designed for critical applications requiring high degrees of current limitation. Their rejection style design prevents unauthorized replacements, while the fiberglass body ensures dimensional stability in harsh industrial environments. These fuses are suitable for loadcenters, panelboards, switchboards, and feeder circuits, offering low peak let-thru current and reliable protection against short circuits. They are UL Listed and CSA Certified, ensuring compliance with industry standards.