1. Heating, Air Conditioning, Electricity
  2. Renewable energies
  3. Solar controller
  4. Technische Alternative elektr. Steuerungsgerätegesellschaft m.b.H.

Solar controller ESR31

solar controller
solar controller
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The ESR21 or ESR31 unit is a multi-purpose differential controller. The graphical display of ESR31 simplifies program selection and shows the position of the sensors in the hydraulic diagram. Additional information can be read in via the DL bus. Thus, in parallel to the controller operation (solar system) it is also possible to calculate the yield (thermal energy). The range of use extends from the single circuit solar system through to sanitary water treatment by way of pump speed control.


*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.