Fothermo SWD-800 changeover unit for photovoltaic boilers up to 800 W
Item no: 066726
158,- €
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Product details
| Compatible with many micro PV inverters | Storage in the boiler and feed-in can be combined | Feed-in of up to 3.5 kWh per day | For up to 4 PV modules (max. 800 Wp) |
Product description
Fothermo Switching Device for Photovoltaic Water Heaters – Harness Excess Energy
With the Fothermo SWD-800 Switching Device, you automatically feed excess electricity into your home’s electrical system as soon as your photovoltaic water heater is heated. A plug-and-play micro-PV inverter utilizes up to 3.5 kWh per day, ensuring that no energy is wasted. Up to 800 Wp can be connected, with a maximum of 600 W fed into the grid.
The unit automatically switches PV modules and also allows for energy storage in the water heater as well as feeding into the home’s electrical grid, even with existing balcony power systems. An integrated display shows you the status of all connected loads. Installation is simple using screws and screw terminals. The device is compatible with many micro-PV inverters rated below 60 V, particularly those from Hoymiles, Envertech, or Deye. Growatt inverters are not compatible. The micro-inverter is sold separately.
Details:
With the Fothermo SWD-800 Switching Device, you automatically feed excess electricity into your home’s electrical system as soon as your photovoltaic water heater is heated. A plug-and-play micro-PV inverter utilizes up to 3.5 kWh per day, ensuring that no energy is wasted. Up to 800 Wp can be connected, with a maximum of 600 W fed into the grid.
The unit automatically switches PV modules and also allows for energy storage in the water heater as well as feeding into the home’s electrical grid, even with existing balcony power systems. An integrated display shows you the status of all connected loads. Installation is simple using screws and screw terminals. The device is compatible with many micro-PV inverters rated below 60 V, particularly those from Hoymiles, Envertech, or Deye. Growatt inverters are not compatible. The micro-inverter is sold separately.
Details:
- Smart Control
- Simple and user-friendly operation
- Straightforward installation thanks to safety extra-low voltage
- Display showing all connected loads
- Wall mounting with four screws
- Four PV inputs
- Up to three connections for electrical loads
- Connection via simple screw terminals
- Compatible with micro-PV inverters under 60 V
- Recommended brands: Hoymiles, Envertech, Deye
- Not compatible with Growatt inverters
- Number of connectable modules: 1–4
- Recommended PV power per input: 300–500 W
- Maximum open-circuit voltage: 50 Voc
- Maximum short-circuit current per module: 15 A
- Connectable PV water heater: 600 W
- Connectable micro-inverters: 2 x 400 W
- Maximum photovoltaic power: 800 Wp
- Maximum feed-in power: 600 W
- Protection rating: IP20
- Dimensions: 17.9 x 7.6 x 4.1 cm
- Weight: 0.8 kg
- 1 x Fothermo switching device
- 1 x User Manual
Features
| Art Energieumwandler | Switchgear |
| ean | 4260714970242 |
| Manufacturer Article No. | 1010-SWD-800 |
Legal information
Manufacturer information
fothermo System AG
Beim Mühlbach 3
89171 Illerkirchberg
Germany
info@fothermo.com

























