Load disconnector with fuse 400A, size 4, 3-pole for NH fuse sizes 1 and 2 Front drive left Basic device without handle Flat connection Load disconnector with 3KF fuses as main, EMERGENCY STOP or repair switch. Depending on the size, load disconnectors with 3KF fuses enable a rated current between 32 and 800 A to be switched on and off. In addition, they provide a safety disconnection function in all low-voltage circuits. Load disconnectors with 3KF fuses are optimized for demanding applications in which NH fuses are used. 1. Variable load disconnectors 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 resistance 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%.