This NX-OC2733 is a 2-point relay output module for the Omron NX I/O platform, with both normally open and normally closed contacts per point. That dual-contact layout means you can handle a fail-safe and a run signal off the same module without adding a separate interposing relay. Out here in the grease, that's fewer terminals to land and one less thing to vibrate loose on the rail.
The lifecycle is active — Omron still builds these, so no last-time-buy scramble. When you're ready to slot it into the BOM, send an RFQ and we'll quote it to order.