3950 3M

3 Max. 70 m /h AC axial fans 92 x 25 mm Material: Housing: Die-cast aluminum Possible special versions: Impeller: Mineral-reinforced (See page 12) PA plastic - Moisture protection Direction of air flow: Exhaust over struts Direction of rotation: Counterclockwise, looking towards rotor Connection: Via 2 flat plugs 2.8 x 0.5 mm grounding lug for M4 Weight: 280 g Note: Please note our new ACmaxx series. With identical mounting dimensions and voltages, this series achieves greater energy efficiency. See page 189. Series 3900 Nominal data 3 -1 Type m /h cfm VAC Hz dB(A) Bel(A) / Watts rpm C Hours Hours 3950 L 31 18.2 230 50 24 3.8 6.0 1 550 -10...+80 70 000 / 27 500 3956 L 31 18.2 230 50 24 3.8 6.0 1 550 -40...+80 70 000 / 27 500 3950 M 45 26.5 230 50 29 4.2 6.0 2 150 -10...+80 70 000 / 27 500 3956 M 45 26.5 230 50 29 4.2 6.0 2 150 -40...+80 70 000 / 27 500 3950 59 34.7 230 50 35 4.7 11.0 2 650 -20...+80 55 000 / 20 000 3956 59 34.7 230 50 35 4.7 11.0 2 650 -40...+80 55 000 / 20 000 3900 L 39 23.0 115 60 27 4.0 5.0 1 850 -10...+80 70 000 / 27 500 3906 L 39 23.0 115 60 27 4.0 5.0 1 850 -40...+80 70 000 / 27 500 3900 M 53 31.2 115 60 34 4.6 5.0 2 600 -10...+80 70 000 / 27 500 3906 M 53 31.2 115 60 34 4.6 5.0 2 600 -40...+80 70 000 / 27 500 3900 70 41.2 115 60 40 5.1 9.0 3 150 -20...+80 60 000 / 22 500 3906 70 41.2 115 60 40 5.1 9.0 3 150 -40...+80 60 000 / 22 500 Subject to change Air performance measured according to: ISO 5801. Installation category A, without contact protection. Noise: Total sound power level L A ISO 103002 W measured on a hemisphere with a radius of 2 m. Sound pressure level L A measured at 1 m distance p from fan axis. The values given are applicable only under the specified measuring conditions and may differ depending on the installation conditions. In the event of deviation from the standard configura- tion, the parameters must be checked after installation For detailed information see