Systems pushbuttons, switches, LEDs, buzzers, etc. Mechanisms and control boxes for electrical devices and automation. Control boxes ready to use, and boxes user-configurable control as needed. The user can use different buttons to control automations, according to the needs of each installation. Ideal for industrial control electrical appliances, automatismos, doors, shutters, etc. Surface box for controls, buttons and switches, based on drilling diameter 22 mm. Emergency button locking system, to be installed in holes 22 mm in diameter. This is a button with very robust metal body. Pressing the red button locks the switch. Unlocking is performed by turning the red mushroom. Emergency button for use in cajas electrical control and automation devices. Compatible with surface boxes for controls, buttons and switches, based on drilling diameter 22 mm.