3241.110 Fan255 x 255mm Face Dimensions, 205m³/h, AC Operation, 115 V ac. The Rittal TopTherm series filter fan is easy to assemble, highly efficient, and a versatile unit that provides airflow of 205m³/h and supply voltage of 115VAC. It does not require any tools during assembly, exchange or maintenance. The fan module and power connection are simple to position to suit the needs of the application. A latch on the grille allows fast filter replacement and the electrical connections are managed with spring clamp terminals. TopTherm units feature efficient technology that enables greater pressure stability and more airflow. It has a face height of 255mm, width of 255mm and the installation depth of 107mm.