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coolcept³-x

StecaGrid 3203x, StecaGrid 4003x, StecaGrid 4803x, StecaGrid 5503x

Description

Inverter topology

The coolcept inverter topology was implemented for the first time in the single-phase StecaGrid inverters and achieved the highest levels of efficiency thanks to its innovative circuitry. The three-phase coolcept³-x-inverters also enjoy the advantages that this circuit provides. The three-phase topology is fully reactive current-capable and therefore also equipped for future requirements.

Always symmetrical

The advantage of three-phase feed-in is that the solar power produced is always distributed symmetrically on all three grid conductors to the public grid. This is the case with these inverters over the entire power range. The symmetrical feed-in is entirely in the interest of the energy supply companies and also corresponds to the three-phase consumption in the household.

Highest efficiency with a long service life

The very high efficiency level results in a peak efficiency of 98.6%, which means that less power loss has to be generated and dissipated to the environment. These are your yield advantages.

As energy is fed into the grid on at least two phases at all times with three-phase feed-in, intermediate energy storage in the unit is not necessary – as is the case with single-phase feed-in. For example, the coolcept³-x-inverters completely eliminate the electrolytic capacitors required for intermediate storage, which can affect the service life of an electronic device if they dry out. The system operator therefore has the prospect of a long service life when using the coolcept³-x-inverters.

In addition, a new, unique cooling concept inside the inverters guarantees an even distribution of heat and with it, a long service life for the devices.

Product design and visualisation

The StecaGrid has a graphical LCD display that visualises energy yield values, current outputs and the operating parameters of the system. The innovative menu offers the possibility of individually selecting the different measured values. A guided, pre-programmed menu ensures seamless, final commissioning of the unit.

Assembly

Weighing just 12 kg, the lightweight units can be mounted effortlessly and securely onto the wall. The wall bracket supplied enables simple and very convenient installation. It is also not necessary to open the unit for installation. All connections as well as the DC isolator are accessible from the outside. For the DC connection, the Sunclix mating connectors are included in the scope of delivery.

The units meet all the requirements of protection class IP65: Its robust stainless steel housing reliably protects it from dust and water, including jet water. That means the inverters can be installed outdoors without any issue.

coolcept3 x technische Zeichnung

Features

Product features

  • Highest efficiency
  • Three-phase, symmetrical grid feeding
  • Simple installation
  • Integrated data logger
  • Low housing temperature at full load
  • Solid stainless steel casing
  • Suitable for outdoor installation
  • Integrated DC circuit breaker
  • Very long service life
  • Droop Mode for integration in hybrid systems
  • Fixed voltage mode for other energy sources
  • 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-x certificate EN 50438:2013, PN-EN 50438:2014 PL · pdf · 1.104 MB
  •  coolcept³-x certificate Certificate overview · pdf · 0.171 MB
  •  coolcept³-x certificate A - TOR-D4 · pdf · 0.529 MB
  •  coolcept³-x certificate CE · pdf · 0.815 MB
  •  coolcept³-x certificate CZ – EN 50438 · pdf · 0.211 MB
  •  coolcept³-x certificate DE - AR-N-4105 F3 · pdf · 0.121 MB
  •  coolcept³-x certificate DE - AR-N-4105 F4 · pdf · 0.030 MB
  •  coolcept³-x certificate DE - AR-N-4105 G2 · pdf · 0.273 MB
  •  coolcept³-x certificate DE - AR-N-4105 G3 · pdf · 0.305 MB
  •  coolcept³-x certificate DE – Speicherförderung · pdf · 0.365 MB
  •  coolcept³-x certificate EN - AR-N-4105 F3 · pdf · 0.124 MB
  •  coolcept³-x certificate EN - AR-N-4105 F4 · pdf · 0.023 MB
  •  coolcept³-x certificate EN - AR-N-4105 G2 · pdf · 0.267 MB
  •  coolcept³-x certificate EN - AR-N-4105 G3 · pdf · 0.313 MB
  •  coolcept³-x certificate EN - VDE-V-0126-1-1 · pdf · 0.212 MB
  •  coolcept³-x certificate EN - VDE-V-0126-1-1-A1 · pdf · 0.154 MB
  •  coolcept³-x certificate EU - EN 50438 · pdf · 0.225 MB
  •  coolcept³-x certificate FR - Déclaration du Fabricant · pdf · 0.253 MB
  •  coolcept³-x certificate FR – VDE-V-0126-1-1 · pdf · 0.205 MB
  •  coolcept³-x certificate IE - CER-06-190 · pdf · 1.067 MB
  •  coolcept³-x certificate IEC 62109 · pdf · 0.302 MB
  •  coolcept³-x certificate PL – EN 50438 · pdf · 0.213 MB
  •  coolcept³-x certificate S - Anmälan · pdf · 0.619 MB
  •  coolcept³-x certificate S - EN 50438 · pdf · 0.292 MB
  •  coolcept³-x certificate SK – EN 50438 · pdf · 0.212 MB
  •  coolcept³-x certificate Compliance Letter Tigo · pdf · 0.073 MB

Commercial guarantee extension

  •  coolcept³-x commercial guarantee extension DE · pdf · 0.066 MB
  •  coolcept³-x commercial guarantee extension EN · pdf · 0.085 MB
  •  coolcept³-x commercial guarantee extension FR · pdf · 0.076 MB
  •  coolcept³-x commercial guarantee extension PL · pdf · 0.133 MB

Product data sheet

  •  coolcept³-x productdatasheet DE · pdf · 1,129 MB
  •  coolcept³-x productdatasheet EN · pdf · 1.210 MB

Manuals

  •  coolcept³-x manual Connecting energy meters EN · pdf · 0.686 MB
  •  coolcept³-x manual Anschluss Energiezähler DE · pdf · 0.720 MB
  •  coolcept³-x manual DE · pdf · 10.797 MB
  •  coolcept³-x manual EN · pdf · 10.932 MB
  •  coolcept³-x manual PL · pdf · 10.958 MB
  •  coolcept³-x manual _short DE · pdf · 6.869 MB
  •  coolcept³-x manual _short EN · pdf · 6.568 MB
  •  coolcept³-x manual _short ES · pdf · 6.468 MB
  •  coolcept³-x manual _short FR · pdf · 6.497 MB
  •  coolcept³-x manual _short IT · pdf · 6.578 MB
  •  coolcept³-x manual _short DA · pdf · 6.467 MB
  •  coolcept³-x manual _short EL · pdf · 6.671 MB
  •  coolcept³-x manual _short ET · pdf · 6.570 MB
  •  coolcept³-x manual _short FI · pdf · 6.578 MB
  •  coolcept³-x manual _short HU · pdf · 6.624 MB
  •  coolcept³-x manual _short NL · pdf · 6.472 MB
  •  coolcept³-x manual _short PL · pdf · 6.664 MB
  •  coolcept³-x manual _short PT · pdf · 6.562 MB
  •  coolcept³-x manual _short RU · pdf · 6.662 MB
  •  coolcept³-x manual _short SV · pdf · 6.459 MB
  •  coolcept³-x manual _short TR · pdf · 6.606 MB
  •  coolcept³-x manual _short ZH · pdf · 6.487 MB

Product pics, technical drawings, etc.

  •  coolcept³-x product pic drawing · jpg, 300 DPI, high quality · 0.527 MB
  •  coolcept³-x product pic drawing · jpg, 72 DPI, web quality · 0.345 MB

Table of countries

  •  coolcept³-x table of countries · pdf · 0.087 MB

Technical data

 StecaGrid 3203xStecaGrid 4003xStecaGrid 4803xStecaGrid 5503x
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
4920 W
5620 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
4800 W
5500 W
Maximum active power (cos phi = 0.95)
3040 W
3800 W
4560 W
5225 W
Maximum active power (cos phi = 0.9)
2880 W
3600 W
4320 W
4950 W
Maximum apparent power (cos phi = 0.95)
3200 VA
4000 VA
4800 VA
5500 VA
Maximum apparent power (cos phi = 0.9)
3200 VA
4000 VA
4800 VA
5500 VA
Rated power
3200 W
4000 W
4800 W
5500 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, outdoors with or without protection
Climate protection class as per IEC 60721-3-4
4K4H
Ambient temperature
-25 °C … +60 °C
Storage temperature
-30 °C … +70 °C
Relative humidity
0 % … 100 %, non-condensating
Noise emission (typical)
29 dBA
Fitting and construction
Degree of protection
IP 65
Overvoltage category
III (AC), II (DC)
DC Input side connection
Phoenix Contact SUNCLIX (1 pair), mating connector included
AC output side connection
Wieland RST25i5 plug, mating connector included
Dimensions (X x Y x Z)
399 x 657 x 227 mm
Weight
12.0 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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