The VW3AE1402 is a connection accessory — specifically the external 24 V DC power terminals block (X14) — designed for Altivar floor-standing enclosures with separate air flows or the compact version, covering the Altivar 61 Plus, 61 Plus-LH, 71 Plus, and 71 Plus-LH drive ranges.
This terminal block provides an external 24 V DC buffer voltage connection to the X14 port on the drive. It mounts inside the floor-standing enclosure, keeping the control wiring separate from the power section — useful when maintaining the drive's control logic alive during a main power drop or when the internal power supply is insufficient for the connected I/O load.