Delta Electronics AUB DC Axial Fans are general axial fans featuring an advanced Superflo bearing system for high performance and long life (50,000 hours). Delta AUB is a standard DC axial fan with plastic impeller and frame. FEATURES Bearing type - Superflo bearing Impeller and frame material - plastic (UL 94V-0) Lead wires UL 1007 AWG #24 or equivalent Red wire positive (+) Black wire negative (-) Voltage - Rated 24VDC Air Flow 20.3 CFM (0.568m³/min) Static Pressure 0.303 in H2O (75.5 Pa) Bearing Type Superflo Fan Type Tubeaxial Noise 40.5 dB(A) Power (Watts) 2.40W RPM 7000 RPM Termination 2 Wire Leads Operating Temperature 14 ~ 140°F (-10 ~ 60°C) Approvals CE, CSA, UL, VDE Weight 0.084 lb (38.1g) Current Rating (Amps) 0.100A Voltage Range 14 ~ 27.6VDC