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High Efficiency Pump Solar System 8 inch E-tech Franklin Electric

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Franklin Electric E-tech

Franklin Electric E-tech SOLAR  8" High Efficiency Submersible Borehole systems (HES) saving up to 20%* of electrical energy when compared to standard synchronous motor systems.

Franklin Electric E-tech

8" REW PM High Efficiency Solar System

Franklin Electric is pleased to announce the introduction of the extended SOLAR feature for its 8" High Efficiency Submersible Borehole systems (HES). 

These systems, consisting of a synchronous submersible NEMA motor associated with a variable frequency drive and matching output filter.



  • Up to 8 % improved motor efficiency* with excellent partial load behaviour (SKU reduction)*
  • Power factor corrected input (No power compensation needed)
  • Significant lower motor heat rise (Increased lifetime)
  • One-stop shop – perfectly matching components guarantee first class performance / efficiency
  • Less panels, more water respectively
  • Solar drive available in IP00/21 enclosure rating
  • AC and DC power source compatible
  • MPPT algorithm maximizes system performance
  • Easy system set-up due tailored pre-settings, user interface and own Franklin Electric software


  • Incorporated Soft start and protection features (no additonal investment)
  • Speed control (Optimum aggregate operation - pump matches system any time) 


  • Communication ModBus (RS485 and Ethernet)


  • Fully supported by the Technical Support Professionals and Field Service Engineers
  • Easy system set-up due tailored pre-settings, user interface and own Franklin Electric software
  • Easy system commissioning due to integrated start-up wizard with tailored pre settings.

Solar system package

Direct DC feeding, AC and DC power source compatible
Suitable for the use in remote areas and harsh environments without grid supply
Robust Electronics enclosure designs

  • 8" rewindable synchronous submersible NEMA motor
  • Variable frequency drive
  • Matching output filter


  • Motor range: 37 - 150 kW (100 Hz - 3000 rpm)
  • System Power Supply: 400 - 800 V DC
  • AC System Supply Frequency: 50 - 60 Hz ± 6%
  • Nominal ambient temperature: motor: 30 °C, electronics: 50 °C (> 40 °C with derating)
  • Motors installation orientation: Vertical / horizontal (shaft end heightened) - 150 kW motors may not be installed horizontally
  • Protection:
  • motor: IP68, insulation class Y
  • drive: IP00/21
  • filter: IP00


  • Special Voltages
  • Higher-graded material: 316SS, 904L
  • Retrofitable PT 100 temperature sensor VFD PT100 Plug-in card necessary (order no. 308 170 202)
  • Sinus output filters in IP54 and IP00
  • Plug-in card 6x DI/DO (order no. 308 170 201)
  • Plug-in card 1x AI & 2x AO (order no. 308 170 206)
  • Plug-in card Profibus (order no. 308 170 203)

*In comparison to current asynchronous technology


Downloads & Videos
Product catalogue

  Click here to download
HES Flyer

  Click here to download 
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