The A3XL6NR is a 60mm red mushroom-head cap for the Schneider Electric A3 range of pushbutton and selector switch operators. It's the visible, palm-sized actuator that sits on the front of an enclosure — the bit an operator slams in an E-stop. The description calls it a "A3 CAP 60MM MSHRM RED" — a 60mm mushroom red cap.
The A3 operator series has been superseded at the panel level, but there is no direct one-to-one cap replacement part number.
What to check before ordering
This is a cap only — it snaps onto the A3 series switch operator body. If you are replacing a damaged cap on an existing A3 operator, it is a direct swap. For a new panel, you will need the complete operator from the A3 range and should verify the operator body part number is still available.