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EP 4 569 531 A1

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(43) Date of publication: 18.06.2025 Bulletin 2025/25 (21) Application number: 23776695.1 (22) Date of filing: 04.08.2023

(51) International Patent Classification (IPC):  H01H 50/08(2006.01) H01H 3/28(2006.01) H01H 71/04(2006.01) (52) Cooperative Patent Classification (CPC): H01H 3/28; H01H 71/04; H01H 2071/048; H01H 50/08; H03K 17/97 (86) International application number: PCT/IB2023/057901 (87) International publication number: WO 2024/033767 (15.02.2024 Gazette 2024/07)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: KH MA MD TN (30) Priority: 08.08.2022 PL 44196622 (71) Applicant: Unitra Spolka z Ograniczona Odpowiedzialnoscia 02-607 Warsaw (PL)	(72) Inventors: DURNAS, Karol 01-381 Warsaw (PL) KRUPOWICZ, Adrian 01-307 Warsaw (PL) GORECKI, Marcin 01-871 Warsaw (PL) SUROWIEC, Andrzej 364 Warsaw (PL) SZULFER, Wiktor 02-647 Warsaw (PL) (74) Representative: JWP Patent & Trademark Attorneys  ul. Minska 75 03-828 Warszawa 03-828 Warszawa (PL)