BUSSMANN 200FM Fuse

Eaton Bussmann 200FM is a high‑speed, single‑barrel fuse rated at 200 A for protective applications in industrial equipment and electrical distribution. The device carries 690 VAC or 450 VDC ratings per IEC and 700 VAC / 500 VDC ratings per UL, reflecting its suitability for both IEC mains and UL‑listed circuits. With a breaking capacity of 200 kA RMS symmetrical, it can interrupt large fault currents safely. The 200FM is designed as a fast‑acting protection device with a DC pre‑arcing rating of 40 kA at 450 VDC (IEC) and 50 kA at 500 VDC (UL), ensuring reliable performance in DC circuits. This fuse is described as part of Bussmann’s high‑speed British Standard family and is intended for fast interruption of overcurrent on high‑voltage circuits up to the listed limits. In practice, it serves in equipment and panel applications where a 200 A protection level and high‑voltage ratings are required, providing a compact protection solution that aligns with common industry fusing practices for voltage classes up to 690 VAC and 450 VDC.