Features
Product type	Button lens
Product colour	Red
Weight & dimensions
Depth	2.5 mm

The product Eaton M22-XDL-R-X0 is a red push-button lens, specifically designed as a button lens for industrial control units. It serves as a visible element for identifying buttons, particularly in systems where clear visual identification of functions such as STOP is required. The button lens is flat and installed flush into the control surface, ensuring optical and tactile integration. The red color is standard for warning or shutdown functions in industrial applications, supporting quick recognition during operation.

Applications
The button lens is intended for a variety of control units from the M22 and M30C series, including models such as M22(S)-DL-X, M22(S)-DRL-X, M22S-DGL-X, M30C-FDL-X, and M30C-FDRL-X. These devices are used in industrial automation, for example in machine controls, plant monitoring systems, or control panels in production environments. The lens is used exclusively as a replacement or supplementary part for existing buttons to visually indicate their function.

Functions and Equipment in Detail
The lens features a symbol representing the STOP function. The labeling is available in two font sizes: for labels up to five characters, the font height is 5 mm; for more than five characters, a font height of 3 mm is used. This adjustment ensures clear readability regardless of label length. The design is flush, meaning the button lens is installed flat into the surface without any protrusion above the control surface. This reduces the risk of contamination and facilitates cleaning.

Technology Explained Simply
The button lens has a depth of 2.5 mm, confirming its shallow installation height. This low depth allows for clean integration into the control surface without optical or mechanical interference. The red color is not chosen for aesthetic reasons alone, but corresponds to industrial standards for shutdown or emergency functions. The button lens is not an active component, but a purely passive, decorative, and functional element that enhances operational safety by visually highlighting the function of the underlying button.

Compatibility and Accessories
The button lens is specifically developed for the mentioned M22 and M30C models. It is not intended for SmartWire-DT systems, meaning it does not support electronic connection or data transmission. The lens is used exclusively as a mechanical replacement part, inserted into the existing button unit.

Installation and Mounting
Mounting is done by simply inserting the button lens into the designated cutout in the control unit. The flush design requires no additional tools or mounting aids. The lens is directly inserted into the button unit, with the fit tailored to the specified models. No special installation instructions are included in the product description.

Operational Advantages
The clear visual identification provided by the red color and STOP symbol enhances operational safety, especially in complex systems. The flat design reduces contamination risk and simplifies maintenance. The adjustable font sizes ensure good readability regardless of label length. The button lens is a robust, low-maintenance component that has proven reliable in industrial environments.