What the dial actually covers on the H3CR-F
The Omron H3CRF AC100240/DC100125 sits in the H3CR-F series as a repeat-cycle twin timer — its job is to open and close a DPDT (2 Form C) output pair on a recurring interval rather than a one-shot delay. The output is a mechanical relay rated 5 A at 250 VAC, which is enough headroom for small contactor coils, solenoid valves, and indicator loads inside a control panel. Timing is set by a hand dial across a 0.05 sec to 30 hr range, wide enough to cover both fast cycling (machine lubrication pulses, air-jet purges) and long-period process timing without swapping the unit. Timing initiates on input voltage, so the cycle starts the moment supply is applied to the timer — convenient for line-start sequences but worth noting if the application needs a dry-contact trigger instead.
Supply envelope and panel-side wiring
Supply is a wide-range 100–240 VAC / 100–125 VDC window, which lets the same timer ride on either AC control power or a DC rail without stocking two SKUs. The 11-pin octal plug-in termination drops into a standard panel socket, so swap-out on a faulted timer is a pull-and-replace rather than a rewire — important for a maintenance spare on a line that can't sit open.
Sourcing posture
Lifecycle is recorded as active in the manufacturer's record, with no official successor or cross-reference noted. For panel-builds and MRO spares this is the kind of mature part that fits a quoted-to-order posture against the BOM — quantity, lead time, and pricing are confirmed at RFQ through independent distribution rather than off-the-shelf shelf stock.