Description of H&B Contronic-2 & 3 components

Hello there! This is Ed.
Is there anyone that can help me with finding the descriptions of several Hartman & Braun Contronic-2 & 3 components? So far not much
found, searched till I dropped. (For instance: CZ312, GA125)
Thanks in advance. Ed.
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Did you look under ABB.com ?
Dieter
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