The VW3A28823 is an exchange kit for the ATV18 variable speed drive series, designed to replace the drive unit in the field without replacing the entire installation. It is listed as compatible with ATV28HU72N4, ATV28HU54N4, ATV28HU41M2, ATV28HU72M2, ATV28HU41N4, and ATV28HU54M2 drive models.
Because this is an exchange kit, the key fit parameter is the target drive model. The kit is physically and electrically matched to the ATV18 frame and the specific drive variants listed. If you are replacing an ATV28HU72N4, ATV28HU54N4, ATV28HU41M2, ATV28HU72M2, ATV28HU41N4, or ATV28HU54M2, this kit is the intended service part. No additional ratings like current or voltage are listed because the kit inherits the drive's own ratings — it is a direct swap, not a selection parameter.
