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  • Dimensions: 6.8 x 2.0 in (172 x 51 mm)
  • Great air flow rate & long life
  • Dual speed models are available
  • Sensor installed model
Unit of Measure


N/A DC Axial Fans

Product Type

N/A Brushless DC 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 172 x 51 mm6.8 x 2.0 in

Max Airflow

N/A 205 cfm5.8 m³/min

Max Static Pressure

N/A 125 Pa0.5 inH2O


N/A 44 dB


N/A 830 g

Operating Temperature

N/A -20 ~ +70 ºC


N/A 12

Carton Size

N/A 45 x 38 x 22 cm


N/A 192

Standard Pallet Size

N/A 790 x 930 x 1090 cm


N/A 16


  • 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.
  • PWM (pulse width modulation) allowing for variable speed control is available in some models (reference the G-51 spec.)
  • The listed products are registered in the following overseas standards files, UL/cUL: E48889, TUV: R50004410
  • Models without PWM Control: Based on your needs, these models can be modified to have PWM control, Please contact Japan servo for more information
  • Figures in the table are average measured values. Please request the product delivery specification when preparing a purchase specification.
  • The characteristics are the values at rated voltage (12 V, 24 V, 48 V). and normal temperature and humidity.

Standard Airflow & Static Pressure Characteristics



D1751S Series-Speed Performance

PWM Speed Control Specification

Speed Performance (At Rated Vol., Air-Room Temperature)