The Omron S8VS-12024/ED2 is a switch mode power supply delivering a 24 VDC output. It sits in the S8VS family, a line of compact DIN-rail-mount supplies for control panels — sized for a 120 W load, though the exact power rating isn't listed here. The 24 VDC rail is standard for PLCs, sensors, and relays; this unit keeps the bus clean for downstream logic.
Peer Comparison
The larger sibling S8VS-48024 delivers 480 W at the same 24 VDC output, with a sinking/sourcing alarm output and screw terminal block. The S8VS-12024/ED2 is the lower-power member — no alarm output or terminal block type is specified here, so if your panel was wired for the 48024's alarm relay, the 12024/ED2 won't drop in without rewiring. For a 120 W load, this is the correct frame.