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Continue to ChatKS20-QB-P-C/O4 - CASTELL 20A, BRASS, NO/NC, PANEL MOUNT, Q TYPE, KS ELECTRICAL SWITCH https://www.pneutrol.com/industrialspares/product/ks20-qb-p-c-o4-castell-20a-brass-no-nc-panel-mount-q-type-ks-electrical-switch/