PV electric heating module incl. energy manager modulating 0-3 (12) kW, power to heat

Modulating electrothermal heating
station with 3 kW output for efficient
use of photovoltaic surplus, suitable
for buffer storage tanks and domestic
hot water tanks. Compact hydraulic unit
with integrated power measurement,
measures the fluctuating PV current
independently via supplied current
clamps, no connection to inverter, meter
or external control required. Continuous
power modulation from 0 - 3,000 watts,
target temperature control (up to 70 °C)
and intelligent storage charging
management ensure optimal heat supply.
With this heating station, the storage
tank can be heated 100% from bottom to
top - unlike heating rods, which only
heat the upper area and therefore cannot
utilise the entire storage capacity.
A constant target charging temperature
enables efficient, stratified loading of
the storage tank. A premium solution for
retrofitting in existing heating and
PV systems, it stores excess electrical
energy as heat in the storage tank.
Optimises self-consumption, reduces grid
consumption, serves as additional or
emergency heating and as reliable
support for heat pumps. Expandable with
external heating elements in modulating
operation up to 12 kW, e.g. with a 3 kW
and a 6 kW heating rod, which can be
controlled via a contactor provided by
the customer. Various additional
functions complement the system and
offer flexible application options.

Technical data:
Heating capacity: 3 kW
Target temperature: 30 - 70°C
Max. operating pressure: 3 bar
Max. charging temperature: 80°C
Nominal power: 0-3 kW (13A)
Dimensions: 680 x 410 x 180 mm
Weight: 13 kg
Electrical connection: 1-phase
1/N/PE 230V / AC 50-60 Hz
Measurement: 3-phase
Required conductor cross-section 2.5mm²
Nominal capacity: 0.2 litres
Max. flow rate: 300 l/h
Connection: G1, Rp 3/4" IG
Pump: Wilo Para 15/7 iPWM2
Power consumption 3-45 W
Power measurement range: 0-70 A
Recommended PV power: 4 kWp
Recommended storage volume: >=500 litres