The VW3AE0142 is a circuit breaker intended as a protection accessory for Altivar floor-standing enclosures with separate air flows or compact versions. It is listed as compatible with the Altivar 61 Plus-LH, Altivar 71 Plus-LH, Altivar 61 Plus, and Altivar 71 Plus drive ranges.
The breaker mounts inside an Altivar floor-standing enclosure — the same cabinet that houses the drive. It is a protection accessory, not a standalone panel device, so verify the enclosure model and airflow configuration (separate air flows or compact) match the destination listed on the part.