PV heating

rosenthal design 
DeltaTherm<sup>®</sup> PV

DeltaTherm® PV

The DeltaTherm® PV immersion heater controller detects excess current, e.g. produced by PV systems, calculates the energy available and redirects it to an electric heater. Thus, excess PV current can be directly converted into thermal energy and stored. By means of a Datalogger or the Communication module, the self-generated current can be visualised via the www.VBus.net Internet portal.

Customer examples on www.VBus.net


incl. measuring unit, 3 current sensors and 1 Pt1000 sensor (FRP6)
Article no.115 006 53 | Price bracket  B | Price on request
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  • Using excess current for heating a water store
  • Electric heater of up to 3 kW, variable and grid compliant
  • Direct control of the electric immersion heater in the store
  • Can be fitted to all stores equipped with an electric immersion heater
  • Reliable household power priority
  • Economical solution for using excess current
Inputs: 3 current inputs for CT, 3 voltage inputs
Power supply: 100 … 240 V~ (50 … 60 Hz)
Supply connection: Y
Standby: < 1 W
Rated impulse voltage: 2,5 kV
Data interface: VBus®
Functions: energy measuring unit
Housing: plastic, PC (UL 94 V-0)
Mounting: DIN rail in the domestic distribution board
Indication/Display: 2 operating control LEDs
Ingress protection: IP 20 / DIN EN 60529
Protection class: I
Ambient temperature: 0 … 40 °C
Dimensions: 71 x 90 x 58 mm
Inputs: 2 Pt1000 temperature sensors, 2 digital switching inputs, 0-10 V control input
Outputs: 2 digital switching outputs, variable power control up to 3 kW (electric immersion heater)
Power supply: 100 … 240 V~ (50 … 60 Hz)
Data interface: VBus®
Functions: controlling an electric heater for using excess PV current for heating a store
Housing: sheet metal, powder-coated
Mounting: wall mounting
Indication/Display: text display
Operation: buttons
Ingress protection: IP 0 / DIN EN 60529
Protection class: I
Ambient temperature: 0 … 40 °C
Dimensions: approx. 226 x 302 x 84 mm

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