SPECIFICATIONS Model Number: Part Number: PQ48B7 19031235A May 16, 2005 Mechanical Drawing: Motor: Nominal Voltage Operating Voltage Range Nominal Running Current Locked Rotor Current Running Power Average Speed Bearings Air Flow Noise Additional Features: = 48 vdc = 24 - 56 vdc = 0.460 amps = 1.000 amps = 22.0 watts = 3475 RPM = Ball = 235 CFM = 51.2 dBA Construction: Venturi: Die-Cast Aluminum, Black Propeller: Plastic, Black, UL 94V-0 Life Expectancy: This fan is designed for continuous duty life of 75,000 hours at 40C. Agency Approvals: UL, cUL, CE Brushless DC Motor Electronic Locked Rotor Protection Polarity Protected Automatic Restart Capabilities Operating Temperature: -10C to 70C Storage Temperature: -40C to 85C Tachometer Specifications: Output: 5 volt TTL Compatible Ic: 5 vdc Typical Pulses Per Revolution: 2 Isolated: No Termination: 12" Lead wires, 22 AWG, UL 1061 Red = Fan Power (+) Black = Fan Ground (-) Blue/White = Tachometer (Output)