The Delta DVP16EH00R3 is a Main Processing Unit (Base Unit) in the DVP Series, a standard PLC with 16 I/O points on board. It's the relay-output variant of the EH2/EH3 line, meaning the outputs switch via mechanical relays rather than transistors — fine for solenoid valves, contactor coils, and general-purpose on/off loads where cycle life isn't the limiting factor.
Peer Comparison
The closest sibling is the DVP16EH00R2, which shares the same 16 I/O count and relay-output type but belongs to the earlier EH2 generation. The R3 carries a slightly faster processing engine and expanded instruction set, so if you're replacing an R2 in an existing panel, check whether the program uses any EH3-specific instructions — the footprint and wiring are identical, so it drops in without rewiring.
Mounts on a DIN rail inside the control panel — standard 35 mm profile. The 16 I/O points are fixed, so if the application needs more, you'll add an expansion module on the side bus. Relay outputs on the R3 version mean no external snubber needed for typical AC loads, but watch the relay's rated switching frequency if you're driving a fast-cycle device.