The Omron H5CXASDNOMI is a panel-mount time lag relay from the H5CX-N series, built for environments where a standard front-panel timer won't last. The IP66 rating means the entire unit — not just the display — is sealed against hose-down and dust ingress, so it survives washdown zones, outdoor cabinets, and the kind of wet-well condensation that eats painted enclosures. That's the real differentiator here: this isn't a splash-resistant office timer; it's rated for the panel in a lift station or a food-processing line where you hose the whole cabinet down. It runs on 12-24 VDC and delivers a single NPN transistor output rated for 100 mA at 30 VDC. That output is a sinking (open-collector) signal — it pulls the load to ground when the timing cycle is active. If your PLC input card expects a dry contact or a sourcing (PNP) signal, this won't match without an interposing relay. The screw terminals are standard for panel wiring; no push-in or spring-cage here, so budget a few extra minutes per termination if your shop is used to tool-less blocks. Time range spans from 1 ms to 9999 hours across 10 selectable ranges, with 15 timing functions including flicker ON start and flicker OFF start. That covers most interval, delay-on-make, delay-on-break, and flashing patterns you'd need for pump alternation, valve sequencing, or alarm annunciation. The 1 ms minimum is useful for fast cycling or pulse stretching, but verify your load's minimum ON time — the transistor output switches at 100 mA, not a relay coil's inrush.
Panel-mount via the standard 45 mm square cutout (DIN 43700 compatible). The IP66 seal is achieved with a gasket between the timer bezel and the panel face — make sure the cutout edge is clean and the gasket seats evenly, or the washdown rating is compromised. The NPN output is a three-wire connection: supply common, output, and 0 V. No auxiliary contacts or mechanical relay to wear out, but the transistor is polarity-sensitive — reverse the supply and it's dead.