Load disconnector 630A, size 4, 4-pole, front drive on the left, basic unit without handle, flat connection. Load disconnector 3KD up to 1600 A as a powerful main, EMERGENCY STOP or repair switch. Load disconnectors 3KD up to 1600 A from Siemens offer reliable personal protection and ensure high system availability in industry, infrastructure and buildings. As a main, EMERGENCY STOP or repair switch, load disconnectors 3KD reliably switch electrical equipment under load and offer a safety disconnection function and distance in low-voltage circuits. 1. Reliable protection against electrical accidents. 2. Robust technology for high system availability. 3. Versatile with variable connection and drive types. 4. Easy retrofitting of additional functions thanks to extensive accessories. 5. Quick installation on the top hat rail for sizes up to 200 A. 6. Efficient engineering through extensive CAx data. 7. Uncomplicated documentation with the manual configurator. 8. Suitable for wind power and solar systems.