Bussmann 170M6742 is a high-speed, special-purpose fuse rated for 500 A at 1250 V AC, part of Eaton's Bussmann series and designed to protect high‑current circuits in industrial electrical systems. The designation 3FKE/115 AR CU denotes a size‑3, fast‑acting fuse with a Type K indicator and copper end caps, providing a clear visual indication of a blown fuse and robust contact reliability. This fuse is intended for high‑voltage protection in demanding electrical environments where fast fault clearing is essential.
