Siemens 3NE8731-1 SITOR Blade End Fuse 315A 200kA 690VAC

Siemen s 3NE8731-1 SITOR fuse link, NH000, with bolt-on M8 links and a front indicator, is rated In 315 A and Un AC 690 V / Un DC 440 V, designed for semiconductor protection in power electronics with fast fault interruption. It provides a short-circuit current rating up to 200 kA (AC) and 50 kA (DC) per IEC 60947-2, and features an 80 mm mounting dimension for busbar mounting with silver-plated contacts to ensure reliable connections. The unit weighs 144 g and supports any mounting position, though vertical is preferred, and it operates from -20 °C to +50 °C with 95% relative humidity, dissipating about 54 W under rated current in hot operating state. As part of the Siemens SENTRON protection family, this SITOR fuse link is intended to protect power semiconductors by providing clear visual status via its front indicator; accessories are not included.