Schneider Electric 9001K93R Mushroom Head Knob

Schneider Electric Harmony 9001K93R mushroom head knob is a red, 57 mm diameter, screw-on plastic actuator designed as a replacement knob for 30 mm Harmony pushbuttons; it includes a set screw to secure to the pushbutton shaft and is specified for non-illuminated pushbuttons in the Harmony 9001K and 9001SK families. The knob features an extended mushroom head that provides a larger tactile surface for operator interaction while maintaining compatibility with the standard 30 mm cutout found in these pushbuttons. With its bright red finish, it delivers high-contrast visibility on busy control panels, aiding quick identification of the active control and improving ergonomics in industrial environments. Designed for panel-mounted applications, it preserves the mechanical interface of the original pushbutton while offering a durable, easy-to-grip surface that remains secure through repeated actuation; installation involves aligning the knob with the button shaft and tightening the integral set screw. This is a genuine Schneider Electric accessory for Harmony 9001K pushbuttons, offering a durable red mushroom head knob for routine panel actuation.