Delta VFD220B43A VFD, 30 HP 22kW, 460V Three-Phase, B Series

The Delta VFD220B43A is a B-series variable-frequency drive rated for 30 HP (22 kW) continuous output from a 460V three-phase supply. That 30 HP figure is the motor nameplate it can drive continuously — sized for a 22 kW four-pole induction motor on a pump, fan, or conveyor. The 150% overload endurance for 1 minute means it can handle short-duration peak loads, like a crusher jam or a cold-start high-torque demand, without tripping. That overload capability is the spec that matters for sizing: if your load cycles hard, this drive has headroom. Frequency setting resolution of 0.01 Hz gives fine speed control for applications like metering pumps or precision conveyors where a 0.1 Hz step would show as ripple. The skip-frequency feature — three programmable zones across 0.1–400 Hz — lets you notch out mechanical resonances in the driven system, so the drive avoids frequencies that make the motor or load vibrate. Stall prevention is adjustable from 20% to 250% of rated current, which means you can tune how aggressively the drive backs off speed before a current trip — useful on high-inertia loads like centrifuges.