SITOR fuse isolator with signaling switch - Fuse switch disconnector 50A 3NC1491-5

SITOR fuse isolator with signaling switch - Fuse switch disconnector 50A 3NC1491-5 – Siemens – 4011209632158: SITOR fuse disconnector with signaling switch 3NC1491-5 design as a safety switch, max. rated operating voltage Ue at AC 690V, rated uninterrupted current Iu 50A, conditional rated short-circuit current Iq 100kA, suitable for other fuse links, number of poles 1, main circuit connection type screw connection, other cable entry, suitable for front mounting, design of the actuating element other, position of the actuating element at the front, degree of protection (IP), on the front other, SITOR fuse disconnector with signaling switch SITOR 3NE, 3NC semiconductor fuses protect power semiconductors from the effects of a short circuit. The SITOR fuse system from Siemens, as an important part of the SENTRON protective components for electrical installations, offers people effective device and system protection through safe shutdown in the event of an overload or short circuit. The area of application also includes frequency converters with fuses in the input and DC intermediate circuits, as well as UPS systems and soft starters for motors. The main features of the Siemens SITOR fuses are: 1. Super quick cut-off characteristics compared to conventional NH fuses. 2. Power semiconductors are also safely protected in the event of a short circuit. 3. The Siemens quality standard ensures very good characteristic curve fidelity. 4. SITOR cylinder fuses are IEC and UL approved and, for the most part, also CCC approved and can therefore be used worldwide. 5. Partially suitable for installation in NH fuse bases, in NH fuse switch disconnectors and switch disconnectors with fuses. For the safe, efficient electrical infrastructure in buildings and industry, Siemens offers an integrated portfolio of protective, switching, measuring and monitoring devices, distribution boards, switches and socket outlets.