Relay vs solid-state output — same footprint, different drive
The closest functional peer is CP2E-N40DT-A: identical input count (24 digital), same AC supply range, same screw-terminal DIN-rail package, but with 16 solid-state (transistor) outputs instead of relay. If your panel was wired for CP2E-N40DT-A, the CP2E-N40DR-A will physically drop into the same slot and connect without rewiring the base unit or power terminals — the format is dimensionally identical. The trade-off is the output drive: relay outputs handle higher inrush and AC/DC mixed loads, while solid state switches faster and avoids contact wear. No second-source beyond the CP2E family exists in that exact 24-in/16-out count.
Panel integration notes
Mounts on a DIN rail with screw terminals. The 100–240 VAC supply powers internal circuits; ambient range –20 to 60 °C, inputs 24 digital, outputs 16 relay.