Highest efficiency with longer service life
The high efficiency results in a peak efficiency of 98.6 % and a European efficiency of up to 98.3 %, which results in less lost power that must be dissipated into the environment. This improves your yields. 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.
The lightweights weigh only 9 kg and can be easily and safely mounted on a wall. The supplied wall bracket and practical recessed grips for right and left handed installers 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.
Product No. R1120 DC input side (PV-generator): Maximum input voltage 845 V Operating input voltage range 350 V ... 700 V Number of MPP tracker 1 Maximum input current 12 A Maximum short circuit current +20 A / -13 A Maximum input power at maximum active output power 3770 W AC output side (Grid connection): Grid voltage 185 V ... 276 V (depending on regional settings) Rated grid voltage 230 V Maximum output current 16 A Maximum active power (cos phi = 1) 3680 W Maximum active power (cos phi = 0.95) 3500 W Maximum apparent power (cos phi = 0.95) 3680 VA Rated power 3680 W Rated frequency 50 Hz and 60 Hz Frequency 45 Hz ... 65 Hz (depending on regional settings) Night-time power loss < 2 W Feeding phases single-phase Total harmonic distortio]n (cos phi = 1) < 2 % Power factor cos phi 0.95 capacitive ... 0.95 inductive Characterisation of the operating performance: Max. efficiency 98.6 % European efficiency 98.3 % Californian efficiency 98.3 % MPP efficiency > 99,7 % static), > 99 % (dynamic) Own consumption < 4 W Power derating at full power from 50 °C (T amb) 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 60721-3-3 3K3 Ambient temperature -15 °C ... +60 °C Storage temperature -30 °C ... +80 °C Relative humidity 0 % ... 95 %, non-condensating Noise emission (typical) 31 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 DC Input side connection Phoenix Contact SUNCLIX (1 pair), mating connector included AC output side connection Wieland RST25i3 plug, mating connector included Dimensions (X x Y x Z) 340 x 608 x 222 mm Weight 9.1 kg Communication interface RS-485 (2 x RJ45 sockets; connectable to Meteocontrol WEB‘log or Solar-Log™, Ethernet interface (1 x RJ45), Modbus RTU (1 x RJ10 socket:
connectable to energy counter)
Integrated DC circuit breaker Integrated DC circuit breaker yes, compliant with VDE 0100-712 Cooling principle temperature controlled fan, variable speed, internal (dustproof) Test certificate Test certificate see certificate download on the product page
- Maximum active power Belgium: StecaGrid 3600(x) / 4200(x) = 3,330 W (cos phi = 1)
- Rated power Portugal: StecaGrid 3600(x) = 3,450 W, StecaGrid 4200(x) = 3,680 W