Sofarsolar SOFAR 1600TL Installation And Operating Manual
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Sofarsolar SOFAR 1600TL Installation And Operating Manual

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SOFAR 1100TL ... 3300TL-G3
Installation and
operating manual
Version 01 | Dec 2021
English
SOFAR 1100TL, 1600TL, 2200TL, 2700TL, 3000TL, 3300TL

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  • Page 1 SOFAR 1100TL … 3300TL-G3 Installation and operating manual Version 01 | Dec 2021 English SOFAR 1100TL, 1600TL, 2200TL, 2700TL, 3000TL, 3300TL...

  • Page 2: Table Of Contents

    TABLE OF CONTENT Table of Content About this manual Copyright declaration Structure of the manual Scope Target group Symbols used Basic safety information Safety information Symbols and signs Product features Product dimensions Labelling on the device Functional features Efficiency curve Installation Installation information Installation procedure...
  • Page 3 TABLE OF CONTENT Unpacking the inverter Installation of the inverter Electrical connections Safety instructions Electrical connection Connecting the PE cables Connecting the DC cables Connecting the AC power cables System monitoring Installation of the WiFi-, GPRS or Ethernet stick RS485, CT, logic interfaces Commissioning the inverter Safety test before commissioning Starting the inverter...
  • Page 4 TABLE OF CONTENT Maintenance Technical data SOFAR 1100...3300TL-G3...

  • Page 5: About This Manual

    Copyright declaration The copyright of this manual is owned by SOFARSOLAR. It may not be copied – neither partially nor completely – by companies or individuals (including software, etc.) and must not be reproduced or distributed in any form, or with the appropriate means.

  • Page 6: Scope

    ABOUT THIS MANUAL Scope This product manual describes the installation, electrical connection, commissioning, maintenance and fault elimination procedures of the SOFAR 1100...3300TL-G3 inverters. Target group This manual is intended for specialist electrical engineers who are responsible for the installation and commissioning of the inverter in the PV system, as well as the PV system operators.
  • Page 7 ABOUT THIS MANUAL DANGER Non-observance will result in death or serious injury. • Follow the warnings in order to prevent death or serious injury! WARNING Non-observance may result in death or serious injury. • Follow the warnings in order to prevent serious injury! CAUTION Non-observance may result in minor injury.

  • Page 8: Basic Safety Information

    Basic safety information NOTE • If you have any questions or problems after reading the following information, please contact SOFARSOLAR This chapter details the safety information pertaining to the installation and operation of the device. Safety information Read and understand the instructions within this manual and...
  • Page 9 SOFARSOLAR assumes no responsibility for the destruction of property or any injuries to personnel caused by improper usage. 2.1.2 Installation requirements Please install the inverter according to the information contained in the following section.
  • Page 10 BASIC SAFETY INFORMATION 2.1.3 Transport requirements The factory packaging is specifically designed to prevent transport damage, i.e. violent shocks, moisture and vibrations. However, the device must not be installed if it is visibly damaged. In this case, notify the responsible transport company immediately. 2.1.4 Labelling on the device The labels must NOT be concealed by items and foreign objects (rags,...
  • Page 11 Obtain authorisation from the local power grid operator before connecting the inverter to the public power grid. NOTE Voiding of guarantee • Do not open the inverter or remove any of the labels. Otherwise, SOFARSOLAR shall assume no guarantee. SOFAR 1100...3300TL-G3...
  • Page 12 BASIC SAFETY INFORMATION 2.1.6 Operation DANGER Electric shock • Contact with the electrical grid or the device’s terminals may result in an electric shock or fire! • Do not touch the terminal or the conductor which is connected to the electrical grid. •...

  • Page 13: Symbols And Signs

    • The internal components of the inverter must NOT be opened without the relevant authorisation. Shenzhen SOFARSOLAR Co., Ltd. assumes no responsibility for any resulting losses or defects. Symbols and signs CAUTION...
  • Page 14 BASIC SAFETY INFORMATION Beware of burning hazards due to the hot housing! • While the inverter is in operation, only touch the display and the buttons, as the housing can become hot. ATTENTION Implement earthing! • The PV generator must be earthed in accordance with the requirements of the local power grid operator! •...
  • Page 15 BASIC SAFETY INFORMATION 2.2.1 Symbols on the inverter Several symbols pertaining to safety can be found on the inverter. Please read and understand the content of these symbols before starting the installation. Symbol Description Residual voltage is present in the inverter! Before opening the inverter, you should wait five minutes to ensure that the capacitor has been fully discharged.
  • Page 16 BASIC SAFETY INFORMATION Symbol Description The inverter must always be transported and stored with the arrows pointing upward RCM (Regulatory Compliance Mark) The product meets the requirements of the applicable Australian standards. SOFAR 1100...3300TL-G3...

  • Page 17: Product Features

    This chapter describes the product features, dimensions and efficiency levels. Product dimensions The SOFAR 1100TL ... 3300TL-G3 is a grid-coupled PV inverter with an MPPT which converts the direct current generated by PV systems into a single-phase alternating current and feeds it into the public power grid.
  • Page 18 The selection of the optional inverter parts must be determined by a qualified technician who has good knowledge of the installation conditions. SOFAR 1100TL-G3 / 1600TL-G3 / 2200TL-G3: L × W × H = 303 mm × 260.5 mm × 118 mm SOFAR 2700TL-G3 / 3000TL-G3 / 3300TL-G3: L ×...

  • Page 19: Labelling On The Device

    PRODUCT FEATURES Dimensions SOFAR 2700TL-G3 … 3300TL-G3 Dimensions of the mounting for SOFAR 1.1K ... 3.3KTL-G3 Labelling on the device Labelling must not be covered or removed! SOFAR 1100...3300TL-G3...

  • Page 20: Functional Features

    PRODUCT FEATURES Functional features The DC output generated by the PV generator is filtered by the input board before it reaches the power board. The input board also provides functions such as the detection of insulation impedance and the measurement of the DC current and voltage. The DC current is converted into AC current by the power board.
  • Page 21 PRODUCT FEATURES Output reduction at overfrequency within the grid If the grid frequency is higher than the limit value, the inverter will reduce the output power; this is required to ensure stability of the grid. Data transfer The inverter (or a group of inverters) can be monitored remotely via the RS485 communication bus or via WiFi/GPRS.

  • Page 22: Efficiency Curve

    PRODUCT FEATURES Efficiency curve SOFAR 1100...3300TL-G3...

  • Page 23: Installation

    INSTALLATION Installation Installation information DANGER Fire hazard • Do NOT install the inverter on flammable material. • Do NOT install the inverter in an area in which flammable or explosive material is stored. CAUTION Burning hazard • Do NOT install the inverter in places where it can be accidentally touched.

  • Page 24: Examination Before Installation

    INSTALLATION Examine the inverter before installation Prepare the installation Select an installation location Transport the inverter Mount the rear panel Install the inverter Examination before installation 4.3.1 Checking the external packaging materials Packaging materials and components may become damaged during transportation.
  • Page 25 INSTALLATION Image Description Quantity Inverter SOFAR 1100TL ... 3300TL-G3 Wall bracket PV+ input terminal PV- input terminal Crimp contact socket Crimp contact pin M5 hexagon screws Dowel M5 washer Spring washer Self-tapping screw Manual Warranty card Output control report Warranty registration form...

  • Page 26: Connections

    INSTALLATION M4X14 Phillips screw, triple (only for DC switch lock) Connections CAUTION Damage during transportation • Please check the product packaging and connections carefully prior to installation. ① DC switch ② PV input terminal ③ WiFi/GPRS/Ethernet ④ Grid connection port ⑤...
  • Page 27 INSTALLATION No. Tool Model Function Hammer drill Used to drill holes Recommended drill in the wall. diameter: 6 mm Screwdriver Wiring Phillips screwdriver Used to remove and install the screws of the AC terminal Removal tool Used to remove the PV terminal Wire stripper Used to strip the wire...

  • Page 28: Installation Location

    INSTALLATION No. Tool Model Function Marker Used for marking Measuring tape Used to measure distances Spirit level Used to align the wall bracket ESD gloves for the installer Safety goggles for the installer Anti-dust respiratory for the installer mask Installation location Choose a suitable position for the installation of the inverter.
  • Page 29 INSTALLATION Minimum distances for individual SOFAR 1100TL ... 3300TL-G3 inverters: 30 cm 30 cm SOFAR 1100...3300TL-G3...

  • Page 30: Unpacking The Inverter

    INSTALLATION Minimum distances for several SOFAR 1100TL ... 3300TL-G3 inverters: 10 cm 20 cm Unpacking the inverter Open the packaging and grip underneath the inverter at the sides with both hands. SOFAR 1100...3300TL-G3...
  • Page 31 INSTALLATION Lift the inverter out of the packaging and move it to its installation position. ATTENTION Mechanical damage • In order to prevent injuries and damage to the device, ensure that the inverter is kept balanced while it is being moved - it is very heavy.

  • Page 32: Installation Of The Inverter

    INSTALLATION Installation of the inverter Hold the wall bracket in the desired place and mark the three holes. Put the wall bracket aside and drill the holes. Insert the complete dowel into the hole vertically. Fasten the rear panel to the wall using the three screws. Place the inverter in the wall bracket.

  • Page 33: Electrical Connections

    ELECTRICAL CONNECTIONS Electrical connections Safety instructions This topic describes the electrical connections of the inverter SOFAR 1100TL ... 3300TL-G3. Read this section thoroughly and carefully before connecting the cables. DANGER Electrical voltage at the DC connections • Ensure that the DC switch is OFF before establishing the electrical connection.
  • Page 34 ELECTRICAL CONNECTIONS The connected PV modules must be compliant with IEC 61730 class Isc PV (absolute maximum) 15.0 A SOFAR 1100TL-G3 5.3 A SOFAR 1600TL-G3 7.7 A SOFAR 2200TL-G3 10.6 A Maximum AC overcurrent protection SOFAR 2700TL-G3 13.0 A SOFAR 3000TL-G3 14.5 A...

  • Page 35: Electrical Connection

    ELECTRICAL CONNECTIONS Electrical connection The electrical connection is established as follows: Connect PE cable Connect DC input cable Connect AC output power cable Connect communication cable (optional) Connecting the PE cables Connect the inverter to the equipotential bonding bar by using the protective earth cable (PE) for grounding.

  • Page 36: Connecting The Dc Cables

    ELECTRICAL CONNECTIONS Crimp the cable to the ring terminal: Install the crimped ring terminal and the washer with the M5 screw and tighten these with a torque of 3 Nm using an Allen key: ① ② M5 screw Ring terminal ③...
  • Page 37 ELECTRICAL CONNECTIONS Cable cross-section (mm Outer diameter of cable (mm) Range Recommended value 4.0 … 6.0 4.5 … 7.8 Remove the crimp contacts from the positive and negative connections. Remove the insulation of the cables: ① Positive DC cable ② Negative DC cable Note: L2 is 2 to 3 mm longer than L1 Insert the positive and negative DC cables into the corresponding...
  • Page 38 ELECTRICAL CONNECTIONS ① ② Positive power cable Negative power cable CAUTION Danger of reverse polarity! • Ensure that the polarity is correct before plugging into the DC connections! Insert the crimped DC cables into the corresponding connector housing until you hear a “clicking” sound. Re-screw the cable glands to the connector housing.

  • Page 39: Connecting The Ac Power Cables

    ELECTRICAL CONNECTIONS Removing the connectors CAUTION Danger of DC arcing • Before removing the plus and minus connector, ensure that the DC switch has been set to OFF. In order to remove the plus and minus connection from the inverter, insert a removal key into the locking and press on the key with the adequate force as shown in the following illustration: Connecting the AC power cables...
  • Page 40 ELECTRICAL CONNECTIONS NOTE • The inverter SOFAR 1100...3300TL-G3 has a built-in AFI (univ. sensitive residual current protection). If an external AFI is required, we recommend an AFI type A featuring a residual current of 100 mA or higher. • Please follow the national rules and regulations for the installation of external relais or circuit breakers! Dimensioning The AC output cables are three-wire cables for outdoor areas.
  • Page 41 ELECTRICAL CONNECTIONS Multi-wire copper wire The AC cable should be correctly dimensioned in order to ensure that the loss of power in the AC cable is less than 1% of the rated output. If the AC cable resistance is too high, then the AC voltage will increase;...
  • Page 42 ELECTRICAL CONNECTIONS Type I connector Type II connector 5.5.1 AC connector installation instructions CAUTION Electrical voltage • Ensure that the grid has been switched off before removing the AC connector. Select the suitable cable. Remove the insulating layer of the AC output cable using a wire stripper and in accordance with the following illustration: Type I A: 30 ...
  • Page 43 ELECTRICAL CONNECTIONS Disassemble the connector in accordance with the following illustration: guide the AC output cable through the cable gland; Type I Type II Connect the AC output cable in accordance with the following requirements and tighten the terminal using the Allen key (type 1) or the Phillips head screwdriver (type II).
  • Page 44 ELECTRICAL CONNECTIONS Type II Connection Cable Earthing cable (yellow-green) Phase (brown) Neutral conductor (blue) Assemble the connector housing and screw the cable gland tight. Type I SOFAR 1100...3300TL-G3...
  • Page 45 ELECTRICAL CONNECTIONS Type II Connect the AC connector to the AC connection of the inverter by turning it clockwise until it locks into place. Remove the AC connector by turning it anticlockwise (type I) or turning the unlocking switch to the “unlock” position (type II). CAUTION Electrical voltage •...

  • Page 46: System Monitoring

    ELECTRICAL CONNECTIONS System monitoring The SOFAR 1100TL ... 3300TL-G3 inverters provide various communication methods for the system monitoring: RS485 or WiFi stick (standard), GPRS or Ethernet stick (optional). 5.6.1 RS485 network You can connect RS485-linked devices to your PC or a data logger via an RS485 USB adapter.

  • Page 47: Installation Of The Wifi-, Gprs Or Ethernet Stick

    ELECTRICAL CONNECTIONS NOTE • In order to use the stick logger, the inverters must have the modbus address 1 Installation of the WiFi-, GPRS or Ethernet stick Remove the waterproof WiFi/GPRS cover using a screwdriver. Install the WiFi/GPRS/Ethernet stick. Fasten the WiFi/GPRS module with screws. 5.7.1 Configuration of the WiFi stick via the web browser Preparation:...
  • Page 48 ELECTRICAL CONNECTIONS Connect your PC or smartphone with the WiFi network of the WiFi stick. The name of this WiFi network is “AP”, followed by the serial number of the WiFi stick (see rating plate). When you are prompted for a password, you can find it on the label of the WiFi stick (PWD).
  • Page 49 ELECTRICAL CONNECTIONS • SOLARMAN Smart (for end customers): • SOLARMAN Business (for installers): Configuration steps After starting the app, register as a new user or enter the current SOLARMAN access data. Create a new system and save the system data. Scan the barcode of the stick logger to assign an inverter to the system.
  • Page 50 ELECTRICAL CONNECTIONS Now, select your local WiFi network for Internet access and enter your WiFi password. The WiFi stick is configured with the access data. WiFi stick status The LEDs on the WiFi stick provide information regarding the status: Status Description NET: Communication...
  • Page 51 ELECTRICAL CONNECTIONS Keystroke Description 5 sec. Restart 10 sec. Restart (reset) 5.7.3 Setting up the GPRS stick The GPRS stick must be equipped with a SIM card: The GPRS stick must be set up via the SOLARMAN Business: Observe the following steps: Open the app and call up the Bluetooth Tools menu item Identify the WiFi stick with the serial number and select it.

  • Page 52: Rs485, Ct, Logic Interfaces

    If you wish to set up a fixed IP address, connect a PC to the Ethernet stick and open the configuration page via the web address 10.10.100.254. RS485, CT, logic interfaces The position of the communication interface of the SOFAR 1100TL ... 3300TL-G3 is displayed below: SOFAR 1100...3300TL-G3...
  • Page 53 ELECTRICAL CONNECTIONS The wiring methods for RS485 and the current sensor (CT) are identical: Communication function RS485 Cable cross-section 0.5 ... 1.5mm² 0.5 ... 1.5mm² Outer diameter 2.5 ... 6 mm 2.5 ... 6 mm Remove the waterproof cover of the communication interface using a screwdriver;...
  • Page 54 ELECTRICAL CONNECTIONS Select a suitable cable and strip it approx. 6 mm. Guide the cable through the cable gland and the waterproof cover, connect the wires and tighten the screws of the terminal using a slot head screwdriver. Engage the terminal in accordance with the imprinted label, and then tighten the screws to fasten the waterproof cover.
  • Page 55 ELECTRICAL CONNECTIONS The pin definitions of the logic interface and the switching connections are as follows: The function of the logic interface must be set on the LCD display; please observe the operating steps in section 6.3. Logic interface pins are defined in accordance with various standard specifications.
  • Page 56 ELECTRICAL CONNECTIONS Colour Function White and orange DRM1/5 Orange DRM2/6 White and green DRM3/7 Blue DRM4/8 White and blue RefGen Green DRM0 White and brown Pin 7 & pin 8 (internally short-circuited) Brown Note: Supported DRM commands: DRM0, DRM5, DRM6, DRM7, DRM8.
  • Page 57 ELECTRICAL CONNECTIONS The inverter is preconfigured on the following power levels Name Inverter Radio ripple control receiver Relay 1 input K1 - output relay 1 Relay 2 input K2 - output relay 2 Relay 3 input K3 - output relay 3 Relay 4 input K4 - output relay 4 Earth...
  • Page 58 ELECTRICAL CONNECTIONS Functional description of the terminal Name Inverter Radio ripple control receiver Relay 1 input K1 - output relay 1 Earth Relay, earth The inverter is preconfigured on the following power levels. Relay status: Closing is 1, opening is 0 Active Power drop rate Cos (φ)

  • Page 59: Commissioning The Inverter

    Ensure that you have selected the correct country code according to regional authority requirements, and consult a qualified electrician or employees of electrical safety authorities. • SOFARSOLAR is not responsible for the consequences of selecting the incorrect country code. • The selected country code influences the device grid monitoring.

  • Page 60: Operation Of The Device

    OPERATION OF THE DEVICE Operation of the device This chapter describes the LCD and LED displays of the SOFAR 1100TL ... 3300TL-G3 inverter. Control panel and display field 7.1.1 Buttons and display lights Button Hold the button down to bring up the next menu level or to confirm the selection ("Enter"...

  • Page 61: Status Display

    Continuous The inverter has encountered an unrecoverable error, please look at the fault elimination procedures in chapter 8 or contact the SOFARSOLAR service. Comm. error The communication between the control board and communications board has been interrupted.

  • Page 62: Menu Structure

    OPERATION OF THE DEVICE Menu structure Hold the button down to bring up the main menu. Main menu 1. Settings See “Settings” See “Set country codes” 2. Event list 3. System See System information menu information 4. Display time See Display time 5.
  • Page 63 USB stick. Firstly, the user 12. Safety voltage must copy any parameter 13. Set safety frequency information to be changed to the 14. Insulation resistance USB stick. To use this function, please contact SOFARSOLAR’s technical support department SOFAR 1100...3300TL-G3...
  • Page 64 OPERATION OF THE DEVICE 15. Reactive power Activates or deactivates the reactive power functions 16. Output reduction Activates or deactivates the output reduction function of the inverter and sets the reduction rate 17. Feed-in power limitation Activates or deactivates the feed-in power function of the inverter and sets the maximum feed-in power.
  • Page 65 OPERATION OF THE DEVICE 22. Power ratio Corrects the internal power indicator of the inverter Password Several settings require a password to be entered (the standard password is 0001). When entering the password, press briefly to change the figure and press and hold to confirm the current figure. Setting of country codes Code Country...
  • Page 66 OPERATION OF THE DEVICE Korea Australia (WA) Sweden Dubai DEWG Europe (general) Dubai DEWG MV Italy (CEI 0-21 external) Taiwan Cyprus Australia (VIC) (* country temporarily unable to be set) Event list menu The event list is used to display the real time event recordings, including the total number of events and each specific ID no.

  • Page 67: Firmware Update

    Displays the current system time. Firmware update The user can update the software via the USB flash drive. SOFARSOLAR will provide the firmware update when it is required. Firmware update Switch the DC and AC switches off and then remove the communication cover.
  • Page 68 OPERATION OF THE DEVICE 10. After the update is complete, switch the DC switch off and wait until the LCD screen goes out 11. Re-establish a watertight communication connection 12. Switch the DC and AC circuit breaker back on 13. You can check the current software version in item “3. Software version”...

  • Page 69: Troubleshooting Handling

    TROUBLESHOOTING HANDLING Troubleshooting handling Troubleshooting This section contains information and procedures pertaining to the remedying of potential problems with the inverter. To carry out troubleshooting, proceed as follows: • Check the warnings, error messages or error codes displayed on the screen of the inverter. If no error information is displayed on the screen, check whether the following requirements have been fulfilled: •...
  • Page 70 TROUBLESHOOTING HANDLING Earth fault alarm This inverter is compliant with IEC 62109-2 Clause 13.9 for earth fault protection. If an earth fault alarm occurs, the error is displayed on the LCD screen, the red light illuminates and the error can be found in the error history log.
  • Page 71 TROUBLESHOOTING HANDLING Name Description Solution GridOVP The voltage of the power If the alarm occurs occasionally, grid is too high then the reason may be the power grid. The inverter automatically GridUVP The voltage of the power returns to its normal operating grid is too low state when the power grid is back GridOFP...
  • Page 72 TROUBLESHOOTING HANDLING Name Description Solution IpvUnbalance Input current is not Check the setting of the MPPT symmetrical input mode (parallel mode/independent mode) of the PvConfigSet Incorrect MPPT mode inverter and correct it as well if Wrong required. GFCIFault Earthing error If the error occurs occasionally, then external factors may be to blame.
  • Page 73 TROUBLESHOOTING HANDLING Name Description Solution HwADFaultD DC current measurement error HwADFaultV Grid voltage measurement Grid error GFCIDeviceF GFCI measurement error ault MChip_Fault Master chip error HwAuxPower Auxiliary voltage error Fault BusVoltZeroF Bus voltage measurement ault error IacRmsUnbal The output current is not ance balanced BusUVP...
  • Page 74 TROUBLESHOOTING HANDLING Name Description Solution DciOCP The DC current is too high Check the setting of the MPPT input mode (parallel mode/independent mode) of the inverter and correct if required. SwOCPInstan The grid current is too Internal inverter error, switch the high DC switch OFF, wait 5 minutes and then switch the DC switch ON.
  • Page 75 TROUBLESHOOTING HANDLING Name Description Solution ConsistentFa The sample value of the ult_DCI DCI between the master DSP and the slave DSP is not consistent ConsistentFa The sample value of the ult_GFCI GFCI between the master DSP and the slave DSP is not consistent SpiCommLos The SPI communication...
  • Page 76 TROUBLESHOOTING HANDLING Name Description Solution UnrecoverHw The grid current is too ID65-ID70 are internal inverter AcOCP high and has caused an errors, switch the DC switch OFF, unrectifiable hardware wait 5 minutes and then switch the error DC switch ON. Check whether the error has been rectified.
  • Page 77 TROUBLESHOOTING HANDLING Name Description Solution UnrecoverIPV The input current is too ID74-ID77 are internal inverter Instant high and has caused an errors, switch the DC switch OFF, unrectifiable error wait 5 minutes and then switch the DC switch ON. Check whether the UnrecoverWR The EEPROM cannot be error has been rectified.
  • Page 78 TROUBLESHOOTING HANDLING Name Description Solution RemoteOff The inverter was switched The inverter logs ID84 in the event off through the remote of a remote switch-off. Check the control wiring of the remote control input and output signal connection on the communication board UnderFreque The inverter has derated The inverter automatically reduces...
  • Page 79 TROUBLESHOOTING HANDLING Name Description Solution SDfault The SD card is defective Please replace the SD card. Maintenance Inverters do not generally require daily or routine maintenance. Before carrying out cleaning, ensure that the DC switch and AC circuit breaker between the inverter and power grid have been switched off. Wait at least 5 minutes before carrying out cleaning.
  • Page 80 TECHNICAL DATA Technical data Datasheet 1100TL-G3 1600TL-G3 2200TL-G3 2700TL-G3 3000TL-G3 3300TL-G3 Input (DC) Recommended max. PV input power 1500 2200 3000 3700 W 4100 4500 (Wp) Max. input voltage (V) Aux. start-up voltage (V) Start-up voltage (V) Rated input voltage (V) MPPT operating voltage range (V) 50-500 50-550...
  • Page 81 TECHNICAL DATA Anti-islanding protection DC reverse polarity protection DC switch Overtemperature protection Leakage current protection Earth fault protection MOV: Type III standard Communication Standard Communication mode RS485 / WiFi, optional: Ethernet General Topology Transformerless Ambient temperature range -30℃...+60℃ Self-consumption at night (W) <...
  • Page 82 Shenzhen SOFARSOLAR Co., Ltd. 11/F, Gaoxinqi Technology Building, District 67, XingDong Community, XinAn Street, Bao'an District, Shenzhen, China SOFARSOLAR GmbH Krämerstrasse 20 72764 Reutlingen Germany Email: service@sofarsolar.com Web: www.sofarsolar.com...

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