Shelf check on a mature Omron SSR
Omron G3CN-202P-DC3-28 sits on the solid state relay line and carries a mature lifecycle flag on the spec sheet — the kind of status that tells the storeroom to keep the bin labelled rather than panic-buy, and tells procurement to keep the part code live in the BOM rather than chase a second source yet. Class placement reads Relays → Relays & Sockets under the Circuit Breakers, Fuses & Protection top node, which is the typical filing for an SSR used as a panel-mounted switching element rather than as a fusible protective device.
What the part number tells you before you open the box
The G3CN family is Omron's printed-circuit-board-mount DC-input solid state relay line — the DC3 suffix on this code marks the input voltage class, so the coil side runs from a DC control signal rather than an AC line, which matters when the upstream PLC or driver outputs a DC switching command. For panel fit, a part in this class expects a standard SSR footprint with through-hole pins, heatsinking on the load-side tab sized to the switched current, and the usual clearance between the input control traces and the load-side power copper — confirm the BOM calls out the DC3 input variant before pulling from a bin labelled for an AC-input cousin.