The Delta VFD022B43A is a B-series variable-frequency drive sized for a 3 HP (2.2 kW) induction motor on a 460V three-phase supply. The 150% overload endurance for 1 minute means it handles short-duration high-torque demands — typical for a conveyor start or a pump breakaway — without tripping on overcurrent. Frequency setting resolution of 0.01 Hz gives fine speed control for applications like metering pumps or synchronized conveyors where tight speed regulation matters.
The 460V three-phase input (class 43) matches standard North American 480V industrial mains with typical 5% tolerance. The 3 HP (2.2 kW) output rating is the continuous motor nameplate limit; the drive can deliver 150% of rated current for 1 minute, so it supports intermittent overloads without nuisance trips. Three skip-frequency zones, programmable between 0.1 and 400 Hz, let you avoid mechanical resonances in the driven system — useful for fans or centrifuges that vibrate at certain speeds. The stall prevention level is adjustable from 20% to 250% of rated current, giving flexibility to match motor thermal capacity.
Integration notes
Fan-cooled enclosure, so ensure clearance around the heatsink for airflow. Ambient humidity must stay below 90% RH non-condensing. Storage and transport temperature range is -20°C to 60°C. The drive accepts standard three-phase 460V input and delivers variable-frequency output to the motor; no special isolation transformer required for typical 480V plant power.