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PAPST 8CM DC Axial Case FanUltra quiet PAPST 8cm Case Fans - DC Axial 8400N Series. Axial fans: Air flow is conducted parallel to the axis of rotation. Lowest noise level in the industry - only 12dB(A), using the sintered sleeve bearings technology. These are made in Germany by ebm industries and very hard to find in the US market.
The blower wheel in axial fans is similar to the propeller of an airplane. Airflow is conducted to a great extent, parallel to the axis of rotation or in other words the axial direction. Axial fans have the best airflow and power consumption when used in a equalized air pressure configuration. Power consumption rises as counter pressure is increased.
Axial case fans have an external housing and have the motor integrated into the blower wheel hub. This compact design is space-saving and allows them to be used in a wide range of applications. All case fans should have appropriate mounting holes.
Features: DC fans with electronically commutated external rotor motor. Fully integrated commutation electronics. With electronic protection against reverse polarity, blocking and overloading; partially impedance protected. Fan of fiberglass reinforced plastic. PBTP housing, PA impeller. Air exhaust over struts. Rotational direction CCW looking at rotor. Electrical connection via leads AWG 24, TR 64. Mass 95g.
Specifications: 80x80x25mm. Air flow: 33 m3h; 19.4CFM. Nominal Voltage: 12 V DC. Voltage range: 8...15 V DC. Noise: 12db(A). 3.5bels. Power Input: 0.6 Watt. Nominal speed: 1500 min-1. Temperature range: -20 ... +70 oC.
References: | Manufacturer | Noise Comparison of 8cm Fans |
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