The protective covers cover the emergency buttons and protect them against unauthorized activation, thus reducing the number of false signals. As soon as the cover is opened, the alarm is triggered and the emergency button or other switchable equipment can be actuated. The protective covers are supplied with a green and red insert, so that only one model of emergency button needs to be used with the green or red inserts. The green insert is intended for escape doors and the red insert for fire doors. In addition, the protective covers are equipped with an LED indicator and a buzzer with adjustable volume. The model is splash-proof according to IP65.