• Switch Disconnectors 3KA, 3KE to 1000A These switch disconnectors 3KA and 3KE are used in distribution systems in residential and commercial buildings as well as in industrial switchboards. 3KA and 3KE switch disconnectors reliably "isolate" and "switch under load" the specified rated current through either three or four phases. This means that they are predestined as main control, EMERGENCY STOP, repair or line changeover switch – and they guarantee safe isolation in all low-voltage networks.

  • Switch Disconnectors 3LD to 125A The 3LD switch disconnectors are used for the switching of main and auxiliary circuits, induction motors and other loads such as air con- ditioners up to 45 KW. Main control and EMERGENCY STOP switches are here to stay – especially in all types of processing machines in the machinery and conveyor sys- tem construction, in the chemical and food & beverage industries. The lockable rotary operating mechanism ensures the optimal use as maintenance and repair switch from 16 A to 125 A.

  • Fuse Switch Disconnectors 3NP to 630A The 3NP fuse switch disconnectors for the occasional switching/isolating of load feeders. With overload and short-circuit protection through fuses, both lines offer safe switching, even under load. With Siemens standard 3NP4 series (size NH000 up to NH3) you have made the optimum choice for the majority of applications – from power distribution in residential and commercial buildings through flexible distribution stations up to power distribution in large industrial plants.

  • Fuse Switch Disconnectors 3NJ4, 3NJ5 to 1250A The 3NJ4 and 3NJ5 fuse switch disconnectors unite the functions "load switching" and "isolating" in just one device – thanks to the integrated NH-fuses (NH00 up to NH4a) they provide full protection against overload and short-circuit.