255/2N ebm papst

Tin-plated 3 Max. 4.6 m /h DC axial fans 25 x 8 mm 1) Material: Housing: GRP (PBT) Possible special versions: 1) Impeller: GRP (PA) (See chapter DC fans - specials) Direction of air flow: Exhaust over struts - Speed signal Direction of rotation: Counterclockwise, - Moisture protection looking towards rotor Connection: Via single wires AWG 28, TR 64 Weight: 5 g 1) Fiberglass-reinforced plastic Series 250 Nominal data 3 -1 Type m /h cfm VDC VDC dB(A) Bel(A) / Watts rpm C Hours Hours 255 M 2.3 1.2 5 4.5...5.5 5 < 3 0.2 6 500 -10...+70 45 000 / 17 500 47 500 255 N 3.5 1.9 5 4.5...5.5 16 < 3 0.4 9 600 -10...+70 40 000 / 15 000 42 500 255 H 4.6 2.6 5 4.5...5.5 23 4.4 0.6 12 000 -10...+55 35 000 / 15 000* 37 500 252 N 3.4 1.9 12 10...14 15 < 3 0.5 9 000 -10...+70 40 000 / 15 000 42 500 252 H 4.6 2.6 12 10...14 23 4.4 0.7 12 000 -10...+55 35 000 / 15 000* 37 500 Subject to change * at 55 C Air performance measured as per: ISO 5801. Installation category A, without accidental contact. 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 configuration, the parameters must be checked after installation For detailed information see