Molly-guard

There is a plastic molly-guard covering the escalator's shutdown button to prevent little kids from pushing it and stopping the escalator.

Source: wiktionary

The radial heat losses are minimized by the Molly Guard foil which establishes a linear temperature profile between the hot heater housing and the water cooled base plate.

Source: wiktionary

1998 August 10, kensmark, “Vi versus Word. The pros and cons (or why does Vi remiond me of a bigger version of notepad?)”, rec.arts.sf.composition, Usenet, Therefore, we have many "molly guards," which are kludged covers that protect the on/off switch and keep you from hitting it by accident.

Source: wiktionary

To include switch, cut-out and molly guard, you'll probably need to order at least two, probably three components.

Source: wiktionary