The 414F from EBM Papst is DC axial fan. This is a compact fan featuring fibreglass reinforced PBT plastic housing material with 40mm x 40mm x 10mm size. RPM 5400 RPM Operating Temperature -4 ~ 158°F (-20 ~ 70°C) Air flow is 8m³/h Noise rating is 22.1dBA Supply voltage is 24VDC Sintec sleeve bearing Compact fan with low power consumption Electronic commutation completely integrated Protected against reverse polarity and locking Connection through single strand 28AWG wire, TR 64, bared and tin plated Air exhaust over bars, direction of rotation counter clockwise seen on rotor UL, CSA and VDE approved