The VW3AE2102 is an external fan power supply module for Schneider Altivar floor-standing drives with separate air flows — specifically the Altivar 61 Plus, 61 Plus-LH, 71 Plus, and 71 Plus-LH enclosures. It provides a 230 V AC supply to the external motor fan, with integrated 400 V protection rated for a 1000 W fan load. A key installation detail: the external fan voltage is identical to the mains voltage feeding the drive cabinet. That means the fan taps directly off the line side — no separate step-down transformer or auxiliary supply needed for the fan circuit.
The 230 V AC supply voltage matches the standard line voltage for many regions, but the fan voltage being identical to the mains means you cannot use this module with a 400 V or 480 V drive line without a step-down transformer upstream. The 400 V protection is for the fan circuit itself — it clamps transients on the 1000 W fan line, not the input side. This accessory is specifically for the floor-standing enclosure variant with separate air flows (the 'compact version' also listed). It is not for the standard IP20 or IP54 drive modules that have the fan integrated into the heatsink channel. If your drive is a wall-mount Altivar 61 or 71 without the Plus suffix, this module does not fit.