ABB SACE 13ABCVentilationThe ABB MNS R switchgear havebeen studied to create separated airflows for all the internal compartmentsin order to guarantee an efficient natu-ral ventilation to all the installed com-ponents. Ventilation grides for naturalcooling are placed on the front andrear side of the the panel on both, topand bottom positions, and on the roofas well.A= Apparatus areaB= Busbar areaC= Cable areaDiagram of natural ventilation of the unit