MAIN CHARACTERISTICS range of product ACTASSI range ACTASSI product or component type BLANKING PLATE accessory / separate part category MOUNTING ACCESSORY cable gland type VENTILATED noise level 35 DB category VENTILATION PLATE COMPLEMETARY CHARACTERISTICS range compatibility ACTASSI OPB air flow 35 M3H device composition FIXING ELEMENTS material SHEET STEEL surface finish ZINC COATED mounting location TOP OR BOTTOM OF THE ENCLOSURE fixing mode BY SCREW