Siemens 3KF4440-0LF11 switch disconnector size 1+2 400A 4-pole front drive left

Load-break switch with fuse 400A, size 4, 4-pole for NH fuse size 1 and 2, front drive on the left, basic device without handle, flat connection. Load-break switch with 3KF fuses as main, EMERGENCY STOP or repair switch. Load-break switches with 3KF fuses enable a rated current of between 32 and 800 A to be switched on and off, depending on the size. In addition, they provide a safety disconnection function in all low-voltage circuits. Load-break switches with 3KF fuses are optimized for demanding applications in which NH fuses are used. 1. Variable load-break switches with door coupling or direct drive in five sizes. 2. Easy retrofitting of functions thanks to extensive accessories. 3. Reliable protection against electrical accidents thanks to locking functionality, contact protection and automatically locked fuse cover when switched on. 4. Robust technology with high short-circuit strength for high system availability. 5. Fast installation on the top hat rail for sizes up to 80 A. 6. Efficient engineering with extensive CAx data. 7. Safe protection also for wind turbines up to 690 V + 10%. www.siemens.de/schaltgeraete. Siemens offers a comprehensive portfolio of protection, switching, measuring and monitoring devices, distribution systems as well as switches and sockets for safe, efficient electrical infrastructure in buildings and industry.