Datasheet

COOLCEPT / COOLCEPT-X / COOLCEPT³ / COOLCEPT³-X / COOLCEPT FLEX
coolcept³
StecaGrid 3203, StecaGrid 4003, StecaGrid 5003, StecaGrid
6003
Inverter topology
The coolcept inverter topology was first implemented in the single-
phase StecaGrid. It achieved optimum efficiency ratings thanks to
the innovative switching concept. The three-phase coolcept³
inverters also benefit from the advantages of this switching
concept. The three-phase topology is fully reactive current capable
and therefore set up to meet demands that may be made in future
as well.
Always symmetrical
The advantage of three-phase feeding is that the produced solar
capacity is always symmetrically distributed on all three power
conductors to the public power grid. This is the case across the
whole output range offered by these inverters. The symmetrical feed-
in is very much in the interests of the power supply companies, and
is also compatible with domestic three-phase consumption.
Highest efficiency with longer service life
The high efficiency results in a peak efficiency of 98.6 %, which
means that less power is lost that must be dissipated into the
environment. This improves your yields.
___As at least two phases of a three-phase feed-in design feed
energy into the grid, it is not necessary to provide for intermediate
energy storage in the device, as must be done in the case of single-
phase feed-in. For this reason, the coolcept³ inverters dispense
completely with the electrolytic capacitors that are required for
intermediate storage. These capacitors may influence the service life
of electronic devices as they may dry out. Therefore by using
coolcept³ inverters, plant operators may expect to benefit from their
long service lives.
___In addition to this, a new and unique cooling concept inside the
inverter ensures an even distribution of the dissipated heat and a
long service life for the device.
Product design and visualisation
The StecaGrid has a graphical LCD display for visualising the energy
yield values, current performance and operating parameters of the
system. Its innovative menu allows individual selection of the various
measurements. The guided, pre-programmed menu allows easy final
commissioning of the device.
Installation
The lightweights with only 10 kg can be easily and safely mounted
on a wall. The supplied wall bracket make mounting of the device
simple and convenient. The device does not need to be opened for
installation. All connections and the DC circuit breaker are externally
accessible. For making DC connections, Sunclix mating connectors
are included in the scope of supply.
Product features
Highest efficiency
Three-phase, symmetrical grid feeding
Simple installation
Integrated data logger
Low housing temperature at full load
Lowest possible own consumption
Integrated DC circuit breaker
Protective insulation according to protection class II
Very long service life
Droop Mode for integration in hybrid systems
Fixed voltage mode for other energy sources
Up to 7-year free warranty after registration
Optimised shadow management using global MPP tracking
Displays
Multifunction graphical LCD display with backlighting
Animated representation of yield
Operation
Simple menu-driven operation
Multilingual menu navigation
Version 2018-03-23 13:08 Steca Elektronik GmbH | Mammostraße 1 | 87700 Memmingen | Germany | [e-mail] | www.steca.de