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Continue to ChatKS20-FSS-F-C/O4 - CASTELL 20A, STAINLESS STEEL, NO/NC, FRONT BOARD, FS TYPE, KS ELECTRICAL SWITCH https://www.pneutrol.com/industrialspares/product/ks20-fss-f-c-o4-castell-20a-stainless-steel-no-nc-front-board-fs-type-ks-electrical-switch/