Where this timer drops into the panel
The Omron H3DK-FA DC12 is a DIN-rail-mount repeat-cycle / twin timer built around a single SPDT (1 Form C) mechanical relay contact rated 5 A at 250 VAC, with a 12 VDC supply rail and a delay range of 0.1 sec to 1200 hr set by screwdriver-slot adjustment on the front face — so it covers anything from a short cycling pulse to a multi-day sequencing interval from a single SKU.
Lifecyle and how to source it
For a procurement line this means specifying it by the exact order code H3DK-FA DC12 — supply voltage (12 VDC) and the SPDT / 5 A contact rating are the two constraints that lock the fit, and neither is shared with the higher-voltage AC siblings of the series — then pulling current availability and pricing against the BOM quantity through an RFQ.
