Siemens Industry Online Support
Siemens AG
Entry type: Product note Entry ID: 109757765, Entry date: 05/15/2018

New Auxiliary Switches for the 3K Switch Disconnectors

  • Entry
  • Associated product(s)
New auxiliary switches for the 3K switch disconnectors 3KA, 3KL, 3KM, 3KD, 3KF, 3KC0
Due to the phase out of the 3SB1 and 3SB3 auxiliary switches which can only be ordered until 30.09.2018, new auxiliary switches are available for the 3K switch disconnectors:
  • For 3KA/L/M:
    As of middle of May, new 3KX auxiliary switches will be available replacing the 3SB1. These are electrical and mechanical fully compatible with the 3SB1, having the same certificates.
  • For 3KD/F/C0:
    As of July 2018, the 3SU successor auxiliary switches can be used replacing the 3SB3.
    The 3SU adapted 3KD/F/C0 main switches are available, containing also an adapter for using the old 3SB3 auxiliary switches.

Attached you will find a conversion list of the 3SB1 and 3SB3 auxiliary switches for the 3K product families:

Target market:

Security information
In order to protect technical infrastructures, systems, machines and networks against cyber threats, it is necessary to implement – and continuously maintain – a holistic, state-of-the-art IT security concept. Siemens’ products and solutions constitute one element of such a concept. For more information about cyber security, please visit
Support to the statistics
With this function the IDs found are listed according to number (format .txt).

Generate list
Copy URL
Display page in new design
mySupport Cockpit
Related links