Model Voltage Current Speed Pressure Air Flow Noise VDC A rpm mmAq CFM dB A17238-Dx7BLS 12 / 24 / 48 1.10 / 0.54 / 0.28 2800 14.5 210 52 A17238-Dx8BLS 12 / 24 / 48 1.59 / 0.78 / 0.37 3200 18.6 245 56 A17238-Dx9BLS 12 / 24 / 48 2.34 / 1.08 / 0.52 3600 23.1 275 60 A17238-DxABLS 12 / 24 / 48 3.33 / 1.38 / 0.68 4000 28.5 310 64 A17238-DxBBLS / 24 / 48 / 1.91 / 0.90 4400 33.4 340 68 A17238-DxCBLS / 24 / 48 / 2.34 / 1.13 4800 39.2 360 x : 1 (12VDC), 2 (24VDC), 4 (48VDC)