Allen-Bradley 800MR-QB24 Push Button With Light

Allen-Bradley 800MR-QB24 is a 22.5 mm round illuminated push-button module in the 800MR family that brings a 24 V AC/DC LED light to a standard 800M push-button assembly. The QB24 LED illumination module powers the green pilot light and is designed to mate with 800M contact blocks such as 800M-XA or 800M-XD1 to form a complete lighted operator for control panels. The green variant uses a Green lens/LED to indicate status, with cataloged configurations like 800MR-QB24GA that reflect green illumination in the 22.5 mm pilot device family. The unit is specified for 24 VAC/DC input and fits standard 22.5 mm panel cutouts, making it a common choice for signaling and actuation in industrial equipment and automation circuits where a visible green light is required.