• Madalpingelised lülitusaparaadid. Osa 6-2, Mitmetoimelised aparaadid. Juhtimis-kaitselülitid = Low-voltage switchgear and controlgear. Part 6-2, Multiple function equipment. Control and protective switching devices (or equipment) (CPS) (IEC 60947-6-2:2020+COR1:2021)2023 https://www.ester.ee/record=b5558784*est