SITOR fuse link, with blade contacts, NH3, In: 850 A, gR, Un AC: 690 V, front-mounted indicator. SITOR 3NE and 3NC semiconductor protection fuses protect power semiconductors from the effects of a short circuit. The SITOR fuse system from Siemens, as a key component of the SENTRON range of protection components for electrical installations, provides effective protection for personnel, equipment and systems by ensuring safe disconnection in the event of overloads or short circuits. Its applications also include frequency converters with fuses in the input and DC link circuits, as well as UPS systems and soft starters for motors. Siemens SITOR fuses are characterised above all by: 1. Extremely fast tripping characteristics compared to conventional NH fuses. 2. Power semiconductors are also reliably protected in the event of a short circuit. 3. The Siemens quality standard ensures excellent characteristic curve consistency. 4. SITOR cylindrical fuses are approved to IEC and UL standards and, for the most part, also to CCC standards, making them suitable for use worldwide. 5. Some are suitable for installation in NH fuse bases, NH fuse switch-disconnectors and load break switches with fuses. Sales unit: 1 pc.