BUSSMANN KTU450 Class L Fuse

The BUSSMANN KTU450 is a 450A, 600V fast-acting Class L fuse from Bussmann (Eaton’s Bussmann series), part of the Limitron family of high‑current protection devices. This fast‑acting fuse is designed to interrupt overcurrent events quickly to protect heavy electrical circuits and minimize damage to conductors, transformers, switchgear, and related equipment. Rated for up to 600 volts, the KTU450 is intended for AC power distribution in industrial or commercial installations and is suitable for use in distribution panels, motor control centers, and feeder circuits where a 450A protection level is appropriate. The KTU class L family comprises fast‑acting fuses intended for high‑current protection in cabinet or equipment enclosures, requiring compatible Bussmann fuse blocks or holders designed for Class L devices. As a 450A, 600V Class L fuse, the KTU450 provides a standardized protection point for large-draw systems, with its fast‑acting characteristics helping to limit downtime and electrical damage during fault conditions.