This plate is designed for fitting to Euchner ES-XN safety switch devices that accommodate 40 mm emergency stop buttons, and is marked with the text "Emergency Stop" for clear identification at the point of use. It serves as a labelling and mounting accessory rather than a switching component itself, ensuring the associated pushbutton is correctly identified on the machine or panel. Typical use is on industrial machinery and control panels where an ES-XN device with a 40 mm emergency stop button is fitted.