Product archive

coolcept³

StecaGrid 3203, StecaGrid 4003, StecaGrid 5003, StecaGrid 6003

  • Three-phase grid inverter
  • Highest efficiency at all input voltages
  • Free Steca web portal via Ethernet interface

Description

Inverter topology

The coolcept inverter topology was first implemented in the singlephase 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.

Features

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 LC display with backlighting
  • Animated representation of yield

Operation

  • Simple menu-driven operation
  • Multilingual menu navigation

Downloads

Certificates

  •  coolcept³ certificate EN - AR-N-4105 F3 · pdf · 0.124 MB
  •  coolcept³ certificate EN - AR-N-4105 F4 · pdf · 0.023 MB
  •  coolcept³ certificate EN - AR-N-4105 G2 · pdf · 0.267 MB
  •  coolcept³ certificate EN - AR-N-4105 G3 · pdf · 0.313 MB
  •  coolcept³ certificate EU - EN 50438 · pdf · 0.225 MB
  •  coolcept³ certificate FR - Déclaration du Fabricant · pdf · 0.253 MB
  •  coolcept³ certificate IE - CER-06-190 · pdf · 1.067 MB
  •  coolcept³ certificate IEC 62109 · pdf · 0.302 MB
  •  coolcept³ certificate PL – EN 50438 · pdf · 0.213 MB
  •  coolcept³ certificate S - Anmälan · pdf · 0.619 MB

Commercial guarantee extension

  •  coolcept³ commercial guarantee extension · pdf · 0.065 MB
  •  coolcept³ commercial guarantee extension · pdf · 0.085 MB

Product data sheet

  •  coolcept³ productdatasheet DE · pdf · 0,216 MB
  •  coolcept³ productdatasheet EN · pdf · 0.217 MB

Manuals

  •  coolcept³ manual · pdf · 7.470 MB
  •  coolcept³ manual · pdf · 6.502 MB

Technical data

 StecaGrid 3203StecaGrid 4003StecaGrid 5003StecaGrid 6003
DC input side (PV generator)
Maximum input voltage
1000 V
Operating input voltage range
250 V … 800 V
Number of MPP tracker
1
Maximum input current
11.0 A
Maximum short circuit current
+20 A / -13 A
Maximum input power at maximum active output power
3300 W
4100 W
5110 W
6130 W
AC output side (Grid connection)
Grid voltage
320 V … 480 V (depending on regional settings)
Rated grid voltage
400 V
Maximum output current
7.0 A
7.0 A
10.0 A
10.0 A
Maximum active power (cos phi = 1)
3200 W
4000 W
5000 W
6000 W
Maximum active power (cos phi = 0.95)
3040 W
3800 W
4750 W
5700 W
Maximum active power (cos phi = 0.9)
2880 W
3600 W
4500 W
5400 W
Maximum apparent power (cos phi = 0.95)
3200 VA
4000 VA
5000 VA
6000 VA
Maximum apparent power (cos phi = 0.9)
3200 VA
4000 VA
5000 VA
6000 VA
Rated power
3200 W
4000 W
5000 W
6000 W
Rated frequency
50 Hz and 60 Hz
Frequency
45 Hz … 65 Hz (depending on regional settings)
Night-time power loss
< 3 W
Feeding phases
three-phase
Total harmonic distortion (cos phi = 1)
< 1 %
Power factor cos phi
0.8 capacitive … 0.8 inductive
Characterisation of the operating performance
Max. efficiency
98.6 %
98.6 %
98.7 %
98.7 %
European efficiency
97.9 %
98.1 %
98.2 %
98.3 %
Californian efficiency
98.3 %
98.4 %
98.5 %
98.5 %
MPP efficiency
> 99.8 % (static), > 99 % (dynamic)
Own consumption
< 8 W
Power derating at full power from
50 °C (Tamb)
50 °C (Tamb)
50 °C (Tamb)
45 °C (Tamb)
Safety
Isolation principle
no galvanic isolation, transformerless
Grid monitoring
yes, integrated
Residual current monitoring
yes, integrated (The design of the inverter prevents it from causing DC leakage current)
Operating conditions
Area of application
indoor rooms with or without air conditioning
Climate protection class as per IEC 60721-3-4
3K3
Ambient temperature
-15 °C … +60 °C
Storage temperature
-30 °C … +70 °C
Relative humidity
0 % … 95 %, non-condensating
Noise emission (typical)
29 dBA
Fitting and construction
Degree of protection
IP 21 (casing: IP 51; display: IP 21)
Overvoltage category
III (AC), II (DC)
DC Input side connection
Phoenix Contact SUNCLIX (2 pairs: 1x PV, 1x battery); mating connector (1 pair) included
AC output side connection
Wieland RST25i5 plug, mating connector included
Dimensions (X x Y x Z)
340 x 608 x 222 mm
Weight
10.0 kg
Communication interface
RS-485 (2 x RJ45 sockets; connectable to Meteocontrol WEB‘log or Solar-Log™), Ethernet interface (1 x RJ45)
Integrated DC circuit breaker
yes, compliant with VDE 0100-712
Cooling principle
temperature controlled fan, variable speed, internal (dustproof)
Test certificate
see certificate download on the product page
 
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