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  • Three sizes of "Silent" series: 120 mm Sq x 38 mm long, 120 mm Sq x 25 mm long, 92 mm Sq x 25 mm long
  • Wide variety of product: 35 kinds (40 mm Sq x 20 mm long-120 mm Sq x 38 mm long)
  • Sensor installed model
  • Suitable for needs of bigger air flow rate required (generate air circulation flow inside of the unit.)
Unit of Measure

Product Type

N/A Axial Fan with Sensor


N/A DC Axial Fans


N/A Bearing : Both Side Shielded Ball Bearing Propeller : ABS and PBT Synthetic Resins Venturi : Aluminum Alloy Die Casting


N/A Brushless DC Motor, Protection type : Overcurrent detection and automatic resetting by current limiting


N/A 120 x 38 mm4.7 x 1.5 in

Rated Voltage (±10%)

N/A 12 V

Max Airflow

N/A 185 cfm5.25 m³/min

Max Static Pressure

N/A 250 Pa1.01 inH2O


N/A 59 dB


N/A 430 g

Options Available

N/A Filter : F120 Filter Guard : F120UL Guard


N/A 20

Carton Size

N/A 45 x 38 x 29 cm


N/A 480

Standard Pallet Size

N/A 790 x 930 x 1020 cm


N/A 24


  • PWM (pulse width modulation) allowing for variable speed control is available in some models (reference the G-51 spec)
  • NIDEC SERVO can meet many of your requirements for customization, such as special connectors, other sensors not listed above, variable speed specifications, and other modifications. Please contact NIDEC SERVO during your product planning and development stage
  • The listed products are registered in the following overseas standards files, UL: E129458, CSA: LR49399, TUV: R50004410
  • 3D data is also available at our web2-CAD site

Standard Airflow & Static Pressure Characteristics



D1238B Series - Axial Fan with Sensor (D1238E48)

Wiring Diagram