Technical data
PV GRID
CONNECTED
PV GRID
CONNECTED
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Steca Elektronik GmbH | 87700 Memmingen | Germany | Fon +49 (0) 8331 8558-0 | Fax +49 (0) 8331 8558-132 | www.stecasolar.com
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Steca Elektronik GmbH | 87700 Memmingen | Germany | Fon +49 (0) 8331 8558-0 | Fax +49 (0) 8331 8558-132 | www.stecasolar.com
Inverter
StecaGrid 300 StecaGrid 500
Input DC
Input voltage range 45 V – 135 V 45 V – 230 V
MPPT range 45 V – 100 V 75 V – 170 V
Max. recommended PV power 100 V 170 V
Max. input rating 320 W * 530 W *
Max. input current 5 A *
DC connectors
Multi-Contact MC 3 (Solarline 1)
or Tyco Solarlok
* Greater available input power and/or higher available current are not utilised as the inverter
contains a protection against overload.
Output AC
Nominal output rating 300 W 500 W
Nominal voltage 230 V
Engine type L/N + PE, single phase
Commercial frequency 50 Hz
Max. efficiency 94.8 % 95.8 %
European efficiency 93.4 % 94.5 %
Power-derating at full-power from 45 ˚C ambient temperature
Self consumption of the inverter 0 W
AC connectors Wieland Electric GST 18i3V
General
Galvanic separation none
Internal power supply
supplied by solar panel
(no Standby power)
Weight 1.4 kg
Ambient temperature domain -20 °C to 45 °C
Enclosure type IP 20 (interior)
Dimensions (h x d x w) 243 x 176 x 71 mm
Norms and certifications
Certification KEMA, CE
StecaGrid
Control N
StecaGrid
Control D
Earth leackage circuit breaker 30 mA AC; **
Main isolator switch yes
Visualisation Display
Weight 1.75 kg
Self consumption 2.4 W
MSD without MSD
according to DIN
VDE 0126
Dimensions (h x d x w) 243 x 176 x 71 mm
**) DC sensivity is suitable for StecaGrid 300/500.
Norms and certifications
Certification CE
StecaGrid Remote
Display from StecaGrid Control
Transceiver 868 MHz ISM
Power supply 2x LR06 (AA) batteries
Dimensions (h x d x w) 103 x 35 x 140 mm
Norms and certifications
Certification CE
Technical data
71
176
243
StecaGrid 300/500
71 176
243
StecaGrid Control
103
140
35
StecaGrid Remote
Inverter
Features
Flexible and expandable
Efficiency of up to 95.8 %
MiniString concept
Low weight
Simple installation
One StecaGrid Control per system is sufficient
Modular and flexible
The StecaGrid 300/500 product range is built in a modu-
lar manner, is simple to install and easy to adapt to your
requirements. In a three-phase-system it can be expanded
infinitely at any time and can thus flexibly adapt to your
solar system investment.
StecaGrid 300/500
The StecaGrid 300/500 inverters were developed to make
the use of solar energy as simple as possible. They are
simple to install, easy to expand, and can be optimally
adjusted to suit the local irradiation conditions.
The StecaGrid 300/500 is perfectly suited to smaller solar
systems between 300 W and 3,600 W. The StecaGrid Mi-
niString inverter series comprises the StecaGrid 300 and
StecaGrid 500 inverters. The devices are rated at 300 W
and 500 W, but can be expanded and combined with
each other. Together, they form a system composed of
two or more module strings (referred to as multi-string
system). System sizes of 300 W to 3,600 W are possible.
StecaGrid MiniString inverters have an independent MPP
tracker and achieve a very high efficiency of up to 95.8 %.
The modularity of the system makes the inverters suitable
for smaller systems and/or systems on partially shadowed
roofs.
StecaGrid Control
The StecaGrid Control monitors the performance of the
system. It shows the generated kWh and the status of
the system and has (optional) safety features (EHS in Ger-
many).
StecaGrid Remote
In addition to the StecaGrid Control an external wireless
communications unit is available: the StecaGrid Remote.
It shows the current output, the system status and the
amount of energy generated on a daily, weekly, monthly
and yearly basis.