Multi-mode timing from a single octal-base module
The Omron H3CR-AP AC24-48/DC12-48 sits in the H3CR-A line as a programmable multi-function timer covering 0.05 sec to 300 hrs of delay in one package — a single stock number absorbs the on-delay, interval, and cycle-mode selections a control panel usually spreads across three or four separate timer SKUs. Output is DPDT (2 Form C) via a mechanical relay rated 5 A at 250 VAC, and timing is started by applying input voltage to the supply pins — the function select dial and the time-range dial are set on the face before the 11-pin octal base is plugged into its matching socket.
Wide-band supply and what 5 A actually switches
Supply input accepts 24 to 48 VAC and 12 to 48 VDC on the same terminals — the same timer drops into a 24 VDC control cabinet, a 48 VDC battery-backed annunciator loop, or a 120 VAC-derived 24 VAC pilot circuit without re-specifying the part, which simplifies spares holding across mixed-voltage panels. The 5 A at 250 VAC contact rating governs resistive and lightly inductive loads at utility pilot levels — adequate for contactor coils, solenoid valves, and indicator lamps, but a real motor or heater load needs the rating read against the load's inrush and the expected cycle rate, because the mechanical-relay output sets the ceiling well below what a solid-state alternative would carry.
Socket-mount form factor for panel builders
Plug-in 11-pin octal termination into a panel-mounted socket means the timer body unclips for swap-out without disturbing the field wiring — a failed unit on a running line comes out, a spare drops in, and the wiring is left alone, which is the standard MRO pattern for this class of electromechanical timer.
Lifecycle posture and the sourcing close
Omron lists this part as active in the mature phase of the H3CR-A series, so production continues and the long-tail panel-builder demand for the 11-pin octal footprint is still being served from the factory channel. For a BOM line or a stocked spare, the order code is specified against the RFQ with current availability and pricing confirmed at quote time — no stock count or lead-time figure is asserted here.