Issue:
Replacement part number knob on ATV61/71/212 keypad VW3A1101.

Product Line:
VW3A1101 Keypad

Environment:
All model numbers.

Cause:
The main knob has broken off or is missing and a replacement is needed.  The keypad still works properly, only the knob is missing.

Resolution:
There is no part number to order a replacement knob.
If the keypad was manufactured prior to Week 22 of 2012 then US customers can reach out to drive.products.support@schneider-electric.com to see if any replacement knob's remain available. 
Be sure to include a shipping address and the serial number from the keypad (found on the label on the back of the keypad).