The ABB A3XLENR is an A3 series extended red push button cap — a replacement actuator for ABB's A3 range of 22 mm push buttons and selector switches. The description on the component line reads GED A3XLENR A3 CAP PB EXTND RED, confirming it as the extended-profile red cap for maintained or momentary operators.
No official ABB replacement order code is listed for this cap.
What Fits
This cap snaps onto the standard A3 series push button operator mechanism — the same 22 mm panel cutout, same bayonet-style actuator stem. If you are replacing a damaged or missing cap on an existing A3 push button station, the A3XLENR is the extended-profile red version; the flush red cap is a different order code in the same family.