What the H3Y timer does in the panel
The Omron H3Y-2-B AC100-120 5S sits in the control section of an industrial panel as a plug-in time delay element, where it holds a DPDT output (2 Form C) for an adjustable interval after the initiate signal arrives. Timing is set by a hand dial on the face of the unit across a 0.2 sec to 5 sec window, suited to short-cycle sequencing rather than hour-scale timing — cascade two units or step up to a longer-range H3Y variant if the process needs tens of seconds or minutes.
Contact rating and supply — fit envelope
The output is a mechanical relay rated 5 A at 250 VAC per the datasheet title line, which is the figure that decides whether the timer can drive a contactor coil, a solenoid, or an indicator lamp directly — anything heavier than 5 A at that voltage needs an interposing relay downstream. The DPDT contact set gives two independent Form C circuits, so the same timer can switch a load and a status feedback simultaneously. Supply is 100 to 120 VAC nominal, matching the common North American and Japanese control-transformer secondary; the 11-pole plug-in termination is what makes field replacement a socket pull rather than a rewire, which matters for service loops on installed machinery.
The product is recorded as Active by the manufacturer and the lifecycle stage on file is mature — a long-running series rather than a recent release. For procurement audit purposes the BOM line resolves to a single order code against an 11-pin socket; specifying it as H3Y-2-B AC100-120 5S with the explicit timing range (0.2 sec to 5 sec) and supply band (100 to 120 VAC) eliminates ambiguity between the on-delay and off-delay variants that share the same housing.