The Delta VFD110B23B is a VFD-M series general-purpose sensorless vector micro drive, fed by a three-phase 230 V supply. The 'B' version type marks the hardware revision, so if you're swapping a VFD110B23A, check the parameter set — the terminal layout and communication map are the same, but the firmware base can differ. It's a sensorless vector drive, meaning it handles variable-torque loads like fans and pumps without an encoder feedback card — the motor model inside estimates rotor position from current and voltage.
Three-phase 230 V input means this drive is sized for the North American 208–230 V industrial supply, not the 400 V class common in Europe. If your plant runs 480 V, you need the VFD-CP200 or VFD-E series at the 460 V rating.