The 170M1372 is a high-speed, square body DIN 43-653 fuse designed for overcurrent circuit protection. It is rated for a current of 315A and has voltage ratings of 690Vac (IEC) and 700Vac (UL), featuring a built-in visual indicator for operational status. This fuse provides a low energy let-through with a pre-arcing I²t of 12,000 A²s and a total clearing I²t of 80,500 A²s at 660V, while exhibiting a low power loss of 52 watts at its rated current. With a high interrupting rating of 200kA, it is suitable for applications such as protecting DC drives, power converters, rectifiers, and DC common buses.