The VW3AP0251 is a motor for circuit-breaker — a protection accessory that mounts inside a standard enclosure alongside an Altivar Process ATV600 or ATV900 drive system rated 110 to 315 kW. It operates on a 230 V AC supply and is part of the drive's integrated protection scheme, not a standalone component. This part cannot be ordered alone; it is only available in combination with a standard enclosure. That means if you're sourcing it for a BOM line, the enclosure is part of the package — factor that into your procurement scope.
Because it ships only as part of an enclosure assembly, don't expect to find it loose on a shelf.
Integration note
The VW3AP0251 is a protection accessory destined for compact drive systems — it's the motor-side circuit-breaker operator that sits inside the standard enclosure, not a panel-mount device you'd see on a DIN rail. The 230 V AC supply powers the motor mechanism that trips or resets the breaker as part of the drive's coordinated protection scheme.