00 HFT300Frequency Detection Module-Smartgen,Genset Controller,Generator Controller,ATS Controller,panel manufactory,ats manufaction,battery charger manufactory 


HFT300 frequency test relay is widely used in marine genset field and land genset field.

Product Code:6060006

Power Supply:DC(8~35)V

Case Dimensions:89.7*71.6*60.7(mm)

Operating Temp. :(-25~+70)℃


Product Feedback

HFT300 frequency test relay is widely used in marine genset field and land genset field.

The corresponding over/under frequency relay outputs and alarm protection activates when the frequency has exceeded/fallen below the set value.



  1. Suitable for 3-phase 4-wire, 3-phase 3-wire, single phase 2-wire, and 2-phase 3-wire systems with frequency 50/60/400Hz;

  2. Over/under frequency protection function;

  3. Adjustable potentiometer allows for set value adjusting and delay value setting;

  4. relay output

  5. One test button, test the over/under frequency relay and indicator;

  6. Widely power supply range DC(8~35)V, suitable to different starting battery voltage environment;

  7. 35mm guide rail mounting;

  8. Modular design, pluggable terminal, compact structure with easy installation.

Function Item Parameter
Overall Consumption <0.9W (Standby mode: ≤0.28W)
Alternator Voltage AC50V~ AC620V (ph-ph)
Alternator Frequency 50Hz/60Hz/400Hz
DC Supply DC(8~35)V
Case Dimensions(mm) 89.7*71.6*60.7
Operating Temp. (-25~+70)℃
Weight 0.24KG

Data Type Version Download Link
Chinese Manual V1.2 View Online   Download
English Manual V1.2 View Online   Download
Typical Application Download
3D Model Diagram Download

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