What you're holding and what it switches
The G3R-ODX02SN DC5-24 is an Omron G3R-O series DC-output solid state relay rated for a 2 A load at 60 Vdc, with a 32 V control input — a compact switching block for low-voltage DC loads rather than a mains AC output stage, so the heat sink math runs against the on-state DC load current, not an AC rms figure. Snaps onto a DIN rail inside the panel, which keeps the wiring harness tidy against the rest of the SSR row and lets a junior trace the control side back to the PLC output without guessing at the mounting footprint.
The line is flagged mature rather than actively promoted, so the part is still orderable but new design-ins should treat it as a known, supported relay — not a fresh-platform pick — and confirm the G3R-O family remains the right answer for the next revision of the panel before committing the BOM position.