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