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Continue to ChatTDI-QB-F-3S-N/O6-110A - 110V AC, NO/NC, Front Mount, Brass, 3 Lock Portion, Castell TDI Electronic Time Delay Isolator https://www.concretespares.ie/product/tdi-qb-f-3s-n-o6-110a-110v-ac-no-nc-front-mount-brass-3-lock-portion-castell-tdi-electronic-time-delay-isolator/