Load break switch with fuse in a new design Iu=250A, Ue=690V, 3-pole for NH fuse size 1 and 2 Basic version without 8UC6 handle and shaft Protection against short circuits and overloads with the load break switch with 3KL fuses. Load break switches with 3KL fuses protect against overloads and short circuits as main and EMERGENCY STOP switches for switchgear, distributors, power supply and motor outputs. In conjunction with Siemens SITOR semiconductor fuses, they are also used in UPS systems, frequency converters and capacitor control systems. The Siemens load break switches with 3KL fuses are characterized by the following features: 1. Possibility of locking and thus protection against unauthorized switching. 2. Simplified storage of accessories, as these can be used for other Siemens load break switches such as 3KA or 3KE. 3. Compliance with the provisions of IEC 60947-1, IEC 60947-3 and VDE 0660 Part 107. 4. Modular design. 5. Fast and easy installation. www.siemens.com/switchgear. 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.