GS device installation duct for mounting on the wall or on mounting brackets. The GS device installation duct has self-contacting locking tabs for holding a partition made of sheet steel. The potential equalization between the lower sections of the duct is achieved via the coupling. The protective measure and potential equalization between the upper section and the lower section is ensured by the patented, self-contacting duct cover. The system opening for device installation is actually 76.5 mm. The second duct track with a system opening of 45 mm is used for cable routing. Installation of Modul45 switching and plug-in devices is not possible here. The upper section must be ordered separately.