2 Installation2.1 Mounting the XN300 slice modulesXN300 slice modules 06/16 MN050002 EN www.eaton.com 192 Installation2.1 Mounting the XN300 slice modulesInstall the XN300 slice modules in a control panel, service distribution board,or enclosure so that the power supply and terminal connections cannot betouched directly during operation. Mount the XN300 slice modules on an EN/IEC 60715 DIN-rail.The DIN-rail must establish a conductive connection to the control panel'sback plate. The individual modules need to be mounted side by side on theDIN-rail and then secured in place by closing the locking elements. Pleasenote that all the devices must be installed in a horizontal position (moduledesignation on top)!In order to ensure that the maximum operating ambient temperature will notbe exceeded, make sure that there is enough clearance between the systemblock's vents and any neighboring components, as well as between thevents and the control panel's back plate.Figure 1: The XN300 slice modules must be installed in a horizontal position! DANGER OF ELECTRIC SHOCK!All installation work must be carried out with the entire installa-tion in a de-energized state.Always follow the safety rules:• De-energize and isolate the system.• Verify isolation from the supply.• Secure against retriggering.• Short-circuit and ground.• Cover adjacent live parts.aabbc