What the H3Y-2-B DC24 120S actually is
The Omron H3Y-2-B DC24 120S is an electronic time-delay relay in the H3Y series, packaged in bulk, with a 120 s timing range and a 24 VDC operating coil per the listing title and series designation. It belongs to the Electronic Timers & Counters class — panel-mounted timing blocks used to introduce a fixed delay between a control signal and a switching action, typically inside a control cabinet on a DIN-rail or socket base.
Lifecycle posture for an MRO buy
The listing records as mature, which for a long-running Omron timer generally means the part is still orderable but no longer in the newest-generation push — the failure mode to plan against is coil or contact wear over the install base, not sudden discontinuation. For a storeroom keeper, that argues for keeping a documented spare on the shelf rather than relying on next-day factory pull.
Sourcing through independent distribution
Bulk packaging on this code is the standard multi-unit shipper used for panel-build and MRO spares — the unit-of-order is the listing's order code, not the inner pack, so quote the panel quantity directly.