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Fronius Ohmpilot 9.0-3

  • The Fronius Ohmpilot 9.0-3 serves for water heating with excess PV power
  • Max output: 3 kW / 9 kW (each continuously adjustable)
  • Output current: 1 x 13 A / 3 x 13 A
  • consumption controller 0 to 9 kW
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The Fronius Ohmpilot 9.0-3 is self-consumption through the intelligent, continuously adjustable regulation of heat sources. The Fronius Ohmpilot is a consumption regulator designed to use excess solar power to heat water. Thanks to the adjustable regulation from 0 to 9 kW, surplus PV current can be put to highly efficient use and fed to the consumers in the household.

Hot water for free

The Fronius Ohmpilot is primarily used to intelligently control heating elements for providing hot water in boilers and buffer storage tanks, but can also be used for infrared heating or towel radiators. Solar power can thus provide a family home with average levels of water consumption with most of their hot water from April to October. The result is maximum self-consumption, a reduction in the household’s CO2 emissions and less wear on the building’s main heating system during the summer months.

Do not waste your time. Buy Fronius Ohmpilot at Best Price.

Key features of the Fronius Ohmpilot :

  • Continuously adjustable regulation from 0 to 9 kW
  • Easy installation
  • Minimum temperature setting
  • Dynamic feed-in limitation ≥ 50% – also with Fronius Energy Package
  • Coordination with other heat sources, e.g. gas water heaters
  • Combination with heat pumps
  • Legionella prevention system
  • Proven compliance with EMV directives

Installing the Fronius Ohmpilot 9.0-3 could not be easier thanks to straightforward commissioning via the dedicated website as well as a simple communication connection via WLAN. The Fronius Ohmpilot also protects the grid by cleanly and reliably activating the consumers, leaving you as the installer fully equipped for the demands of today and tomorrow.

The Fronius Ohmpilot 9.0-3 is compatible with all Fronius inverters. A Fronius Datamanager 2.0 and a Fronius Smart Meter are required to use the device. The Fronius Datamanager is integrated as standard in Fronius Symo, Fronius Symo Hybrid, Fronius Primo, Fronius Galvo and Fronius Eco inverters. The Fronius Datamanager and the Fronius Smart Meter can be retrofitted in existing inverters at any time.


Fronius Solar Inverter Logo
The history of Fronius begins in 1945. The company is now represented by subsidiaries in 28 countries and by sales partners and representatives in over 60 countries, and is a recognised innovation and technology leader. Since 2011, Fronius has been led by the granddaughter of the company founder, Elisabeth Engelbrechtsmüller-Strauß. However, the company´s goal remains the same as ever: to create a sustainable future through innovation, quality and a first-rate service. The best immersion heaters for solar pv from NASDAQ, Bloomberg and Fortune 500 listed solar energy component manufacturers at best price; suitable for all weather conditions. 

Related links to the Fronius Ohmpilot :

Solar PV Water Heating immersion heaters

Fronius Inverters, from the Austrian Fronius are recognized as high performing inverters with higher rate of self- consumption, intelligent control of energy flows and limiting energy export to the grid. Fronius is known for its reliability and high quality products across the globe.

Solar water heating systems use solar panels, called collectors, fitted to your roof. These collect heat from the sun and use it to heat up water that is stored in a hot water cylinder. A boiler or immersion heater can be used as a back up to heat the water further to reach the temperature you want.

A family of five will enjoy larger savings than a family of two will. According to the U.S. Department of Energy, solar water heaters reduce monthly utility bills by 50 percent to 80 percent on average. With savings like that, solar water heaters pay for themselves very quickly — usually within 5 to 10 years.
  • Compared to photovoltaic panels, solar thermal panels only heat water.
  • Solar heaters require sufficient roof space to accommodate them.
  • Solar water heaters require direct sunlight to function.
  • The system does not function on cloudy, rainy, or foggy days.
An immersion heater is an electric water heater that is found inside a hot water cylinder. It works a little bit like a kettle, in that it uses an electric resistance heater (that looks like a big metal loop) to heat the water around it. Immersion heaters are connected to the electric mains via a cable

Immersion heaters use electricity to heat water, which is considerably more expensive than gas. For example, 1 kW of gas will cost you around 4p, while 1 kW of electricity will cost around 15p. That means a 6 kW immersion heater would cost 90p an hour to operate, substantially more than operating a gas combi boiler.

In “hard water” areas it is recommended that the thermostat on the immersion heater is set to 50°C. If you have a twin immersion heater the top element should be set to 50°C and the lower one to 60°C. In “soft water” areas set a single immersion heater and twin immersion heaters to 60°C.

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Solar PV Heating

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We carry everything you need for your grid tied or off-grid system. Our Solar PanelsInvertersEnergy Storage, Solar Accessories and Mounting are second to none in quality, reliability, efficiency and lifespan. When going solar with us, we help you every step of the way in sourcing the products that matter for your investment.

Let us design and supply your solar panel system for less using the best products in the solar industry. We are proud to be a preferred distributor for solar installers, SMEs, Governments, leading universities and DIY solar homeowners.

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Additional information

Weight 3.9 kg
Dimensions 35 × 28 × 11 cm
Product Category

Accessories and Mounting, Immersion Heater, Monitoring, SOLAR PHOTOVOLTAIC (PV), Solar PV Heaters



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Fronius Ohmpilot 9.0-3

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Buy Fronius Ohmpilot 9.0-3


Frequency (Input) 50 Hz
Max. input current (Iac max1)
1×16 A / 3×16 A
Input voltage 1)
230 V / 400 V


Max. output power 1)
Continuously adjustable 3 kW – 9 kW
AC output current (Iac nom1)
1×13 A / 3×13 A
Output voltage 1)
230 V / 400 V
Frequency (Output) 50 Hz
Fronius Logo
The history of Fronius begins in 1945. The company is now represented by subsidiaries in 28 countries and by sales partners and representatives in over 60 countries, and is a recognised innovation and technology leader. Since 2011, Fronius has been led by the granddaughter of the company founder, Elisabeth Engelbrechtsmüller-Strauß. However, the company´s goal remains the same as ever: to create a sustainable future through innovation, quality and a first-rate service.

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