Sofar solar SOFAR 3.3KTLX-G3 User Manual
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Sofar solar SOFAR 3.3KTLX-G3 User Manual

Solar grid-tied inverter
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User manual
Solar Grid-tied Inverter
Product Model: SOFAR 3.3~12KTLX-G3
S h e n z h e n S O FA R S O L A R C o . , L t d .

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Summary of Contents for Sofar solar SOFAR 3.3KTLX-G3

  • Page 1 User manual Solar Grid-tied Inverter Product Model: SOFAR 3.3~12KTLX-G3 S h e n z h e n S O FA R S O L A R C o . , L t d .

  • Page 2: Table Of Contents

    SOFAR 3.3~12KTLX-G3 User manual Content Preface........................II 1. Basic Safety Information..................- 1 - 1.1. Requirement for Installation and Maintenance.........- 1 - 1.2. Symbols and signs................- 4 - 2. Product Characteristics..................- 7 - 2.1. Intended Use..................- 7 - 2.2.

  • Page 3: Preface

    SOFAR 3.3~12KTLX-G3 User manual Preface Notice The products, services or features you purchased shall be subject to the company's commercial contracts and terms. All or part of the products and services described in this document may not within the scope of your purchase. Unless additional terms and conditions in your contract, the company does not make any statement or guarantee on the contents of this document.
  • Page 4 This manual is an integral part of SOFAR 3.3~12KTLX-G3. It describes the assembly, installation, commissioning, maintenance and failure of the product. Please read it carefully before operating. Scope of Validity  This manual contains important instructions for: SOFAR 3.3KTLX-G3 SOFAR 4.4KTLX-G3 SOFAR 5KTLX-G3 SOFAR 5.5KTLX-G3 SOFAR 6.6KTLX-G3 SOFAR 8.8KTLX-G3-A SOFAR 8.8KTLX-G3...

  • Page 5: Basic Safety Information

    SOFAR 3.3~12KTLX-G3 User manual 1.Basic Safety Information Outlines of this Chapter Please read the instruction carefully. Faulty operation may cause serious injury or death. If you have any question or problem when you read the following information, please contact Shenzhen SOFARSOLAR CO., Ltd.
  • Page 6 SOFAR 3.3~12KTLX-G3 User manual Qualified Person When inverter is working, it contains lethal voltages and went hot in some area. Improper installation or maloperation could cause serial damage and injury. To reduce the risk of personal injury and to ensure the safe installation and operation of the product, only a qualified electrician is allowed to execute transportation, installation, commissioning and maintenance.
  • Page 7 SOFAR 3.3~12KTLX-G3 User manual Transportation Requirement Inverter is in the good electrical and physical condition when it ship out from factory. During transport, inverter must be placed in its original package or other proper package. Transportation company should responsible for any damage during transport period.

  • Page 8: Symbols And Signs

    SOFAR 3.3~12KTLX-G3 User manual Before any repair work, turn OFF the AC circuit breaker between the inverter and electrical grid first, then turn OFF the DC switch. After turning OFF the AC circuit breaker and DC switch wait for Danger at least 5 minutes before carry any maintenance or repair work.
  • Page 9 SOFAR 3.3~12KTLX-G3 User manual PV array should be grounded in accordance to the requirements of the local electrical grid company. Attention Ensure the maximum DC voltage input is less than the maximum inverter DC voltage (including in low temperature condition). Any damage cause by overvoltage, SOFARSOLAR will Warning not take the responsibility including warranty.
  • Page 10 SOFAR 3.3~12KTLX-G3 User manual This symbol indicates the position Grounding Terminal for the connections of an additional equipment grounding conductor Observe the Read all documentation supplied documentation with the product before install Positive pole Positive pole and negative pole of negative pole the input voltage (DC) Indicated the temperature...

  • Page 11: Product Characteristics

    SOFAR 3.3~12KTLX-G3 User manual 2.Product Characteristics Outlines of this Chapter Product Dimensions Introduce the field of use and the dimensions of the product Function Description Introduce working principle and internal components of the product Efficiency Curves Introduce the efficiency curves of the product 2.1.
  • Page 12 Figure2-2 Overview of the grid configurations Product Dimensions The choice of optional parts of inverter should be made by a qualified technician who knows the installation conditions clearly. Dimensions Description SOFAR 3.3KTLX-G3 SOFAR 4.4KTLX-G3 SOFAR 5KTLX-G3 SOFAR 5.5KTLX-G3 SOFAR 6.6KTLX-G3 SOFAR 8.8KTLX-G3-A...
  • Page 13 SOFAR 3.3~12KTLX-G3 User manual Figure 2-3 Front, side and back of the machine (3~12K) Figure 2-4 Bottom view Note: 3.3KTLX-G3 ,4.4KTLX-G3, 5KTLX-G3, 5.5KTLX-G3,6.6KTLX-G3,8.8KTLX-G3, 11KTLX-G3 supports 2-channel PV string input; 8.8KTLX-G3-A, 10KTLX-G3-A, 11KTLX-G3-A, 12KTLX-G3 supports 3-channel PV string input. 16.0 16.0 272.0 3-12.0 354.0...
  • Page 14 SOFAR 3.3~12KTLX-G3 User manual Function description of inverter box bottom Figure 2-6 Bottom view of the SOFAR 3.3~12KTLX-G3 DC Switch DC negative poles connecters DC positive poles connecters USB Port (for WIFI or Ethernet communication) Breather valve COM Port (for RS485 communication) AC output Labels on the equipment Figure 2-7 Product label...

  • Page 15: Function Description

    SOFAR 3.3~12KTLX-G3 User manual 2.2. Function Description DC power generated by PV arrays is filtered through Input Board then enter Power Board. Input Board also offer functions such as insulation impedance detection and input DC voltage/ current detection. DC power is converted to AC power by Power Board.

  • Page 16: Electrical Block Diagram

    SOFAR 3.3~12KTLX-G3 User manual 2.3. Electrical block diagram Figure 2-8 Schematic diagram 2.4. Efficiency and derating curve Figure 2-9 Power efficiency curve (take 12KW for example) Figure 2-10 Rated Power ratio vs Grid Voltage - 12 - Copyright © Shenzhen SOFARSOLAR Co., Ltd.

  • Page 17: Installation

    SOFAR 3.3~12KTLX-G3 User manual 3.Installation Outlines of this Chapter This topic describes how to install this product, please read carefully before install. Do NOT install the product on flammable material Do NOT store this product in potentially explosive atmospheres Dangers The enclosure and heat sink will get hot during operation, please do not mount the product at a easy to reach location Caution...
  • Page 18 SOFAR 3.3~12KTLX-G3 User manual Checking Deliverable After unpacking, please check according to following table, to see whether all the parts were included in the packing, please contact your distributor immediately if anything missing or damage. Figure 3-1Components and mechanical parts that inside the package Pictures Description Quantity...
  • Page 19 SOFAR 3.3~12KTLX-G3 User manual 8.8KTLX-G3-A 3 PCS 10KTLX-G3-A 3 PCS 11KTLX-G3-A 3 PCS 12KTLX-G3-A 3 PCS 3.3KTLX-G3 2 PCS 4.4KTLX-G3 2 PCS PV+ metal pin 5KTLX-G3-A 2 PCS 5KTLX-G3-A 2 PCS 5.5KTLX-G3-A 2 PCS 6.6KTLX-G3 2 PCS 8.8KTLX-G3 2 PCS 11KTLX-G3 2 PCS 8.8KTLX-G3-A 3 PCS...

  • Page 20: Tools

    SOFAR 3.3~12KTLX-G3 User manual R-type terminal 5PCS Communication Terminal 1PCS USB acquisition stick 1 PCS (Optional) (WIFI/GPRS/Ethernet) 3.3. Tools Prepare tools required for installation and electrical connection as following table: Figure 3-2 Installation tools Tool Description Function Hammer Drill Recommend drill @ Used to drill holes on the wall 80mm Use to tighten and loosen screws when...

  • Page 21: Determining The Installation Position

    SOFAR 3.3~12KTLX-G3 User manual Wire Stripper Used to peel cable M6 use to uninstall and install the front M6 hexagon wrench top cover and down cover Use to crimp cable on grid side, load Crimping Tool side and CT extensive cable Check grounding cable, PV positive and Multimeter negative pole...
  • Page 22 SOFAR 3.3~12KTLX-G3 User manual inverter, consider the following: Note: install vertical or backward tilt within 0-15°, Do not install forward or upside down! Figure 3-1Installation Position Selection Figure 3-2 Clearance for single inverter - 18 - Copyright © Shenzhen SOFARSOLAR Co., Ltd.

  • Page 23: Moving Of Inverter

    SOFAR 3.3~12KTLX-G3 User manual Figure 3-3 Clearance for multiple inverters 3.5. Moving of inverter Unload the inverter from package, horizontally move to the install position. When open the package, at least two operators insert the hands to the back of heat sink part.

  • Page 24: Installation

    SOFAR 3.3~12KTLX-G3 User manual Figure 3-6 Move inverter from package (2) Inverter is heavy, attention to keep the balance when lift the inverter. Dropped while being transported may cause injuries. Do not put the inverter with wiring terminals contacting the floor because the power ports and signal ports are not designed to support the weight of the inverter When place inverter on the floor, put it above foam or paper to...
  • Page 25 SOFAR 3.3~12KTLX-G3 User manual Step 4：Lift the inverter and hang it on the rear panel, and fixing both side of inverter with M6 screw (accessories). Figure 3-8 Installation instruction (2) - 21 - Copyright © Shenzhen SOFARSOLAR Co., Ltd.

  • Page 26: Electrical Connection

    For this product, the open circuit voltage of PV strings should not greater 1100V Note The connected panel must meet the standard IEC61730A。 String Maximum output current IscPV(maximum) Model SOFAR 3.3KTLX-G3 22.5A/22.5A SOFAR4.4KTLX-G3 22.5A/22.5A 6.7A SOFAR 5KTLX-G3 22.5A/22.5A 7.6A SOFAR5.5KTLX-G3 22.5A/22.5A...

  • Page 27: Grounding Connection (Pe)

    SOFAR 3.3~12KTLX-G3 User manual SOFAR 8.8KTLX-G3-A 22.5A/45A 13.3A SOFAR 10KTLX-G3-A 22.5A/45A 15.2A SOFAR 11KTLX-G3 22.5A/22.5A 16.7A SOFAR 11KTLX-G3-A 22.5A/45A 16.7A SOFAR 12KTLX-G3 22.5A/45A Note: In the above table, the first value of IscPV is for MPPT1, the second value of IscPV is for MPPT2. 4.1.
  • Page 28 SOFAR 3.3~12KTLX-G3 User manual Figure 4-2 Grounding connection instruction（1） Note：the length of L2 should 2~3mm higher than L1 Step 2: Insert the exposed core wires into the OT terminal and crimp them by using a crimping tool, as shown as figure 5.3. Recommend using OT terminal: OT-M6, Cable: ≥6mm Figure 4-3 Grounding connection instruction（2）...

  • Page 29: Connect Grid Side Of Inverter (Ac-Output)

    Cross section area outdoor cable of Cu cable （mm Model ） specification （mm） 16A/230V/3P current leakage SOFAR 3.3KTLX-G3 2~3, recommend 2.5 18~25 protection 0.1A 16A/230V/3P current leakage SOFAR 4.4KTLX-G3 2~3, recommend 2.5 18~25 protection 0.1A 16A/230V/3P current leakage SOFAR 5KTLX-G3-A 3~4,...
  • Page 30 SOFAR 3.3~12KTLX-G3 User manual Figure 4-5 Incorrect connection between load and inverter The resistance at connection point must less than 2 Ω . In case to have a properly anti-islanding function, please choose the high-quality PV cable and ensure the power loss is less than 1%. Meanwhile, the inverter AC side to grid connection point must less than 100m.
  • Page 31 SOFAR 3.3~12KTLX-G3 User manual Figure 4-7 SOFAR 3.3~12KTLX-G3 Multi-core Cable picture Wiring Procedure as following: Step 1: Remove the AC waterproof cover screw with a screwdriver, and take out the stopper in the PG waterproof joint. Figure 4-8 Removing AC waterproof cover diagram Step 2: Select the appropriate cable diameter according to table 4-1, process the cable according to the following picture size requirements, and then pass through PG waterproof joint;...

  • Page 32: Connect Pv Side Of Inverter (Dc-Input)

    SOFAR 3.3~12KTLX-G3 User manual Figure 4-9 AC cable connection instruction diagram (1) Step 3: After assembling the PG waterproof connector, connect the cable to the AC terminal block L1, L2, L3, N, PE contacts, and fasten them (1~1.6 N · m). Tighten the lock nut of PG terminal clockwise (5~5.5 N ·...
  • Page 33 SOFAR 3.3~12KTLX-G3 User manual Figure 4-11 DC cable connection（1） Step 2: Crimp the PV metal contact pin to the striped cable using a proper crimping pliers; Figure 4-12 DC cable connection(2) Step 3: Insert wire into the connector cap nut and assemble into the back of male or female plug, When you heard a “click”, the pin tact assembly is seated correctly.
  • Page 34 SOFAR 3.3~12KTLX-G3 User manual Figure 4-14 DC cable connection(4) Figure 4-15 Use a multimeter to check the positive and negative electrodes Note ： Please use multimeter to make sure the PV array positive pole and negative pole! Dealing：If need to remove the PV connector from inverter side, please use the Removal Tool as below diagram, move the connector gently.

  • Page 35: Communication Connection

    SOFAR 3.3~12KTLX-G3 User manual 4.5. Communication Connection When layout wiring diagram, please separate communication wiring and power wiring in case the signal be affected. Note 3.3~12KTLX-G3 inverter has one USB Port and one COM Port, as shown in the following figure. 1:USB Port 2:COM Port Figure 4-17 Communication connection Port...
  • Page 36 SOFAR 3.3~12KTLX-G3 User manual For details, please refer to the user manual of USB acquisition stick. 4.5.2. COM—Multi function communication port Figure 4-18 Recommend COM cable size Outer diameter Area Name Type (mm) (mm²) RS485 Outdoor shielded Communication twisted pair meets 0.25~1 2 or 3core：4~8 Wire...
  • Page 37 SOFAR 3.3~12KTLX-G3 User manual ④ ⑤ 4.5.3. Communications Port Description This topic describes the functions of the RS485 and WIFI. RS485 By RS485 interface, transfer the inverter power output information, alarm information, operation state to the PC terminal or local data acquisition device, then uploaded to the server.
  • Page 38 SOFAR 3.3~12KTLX-G3 User manual If multiple SOFAR 3.3~12KTLX-G3 are used, connect all SOFAR 3.3~12KTLX-G3 in daisy chain mode over the RS485 communication cable. Set different Modbus address (1~31) for each inverter in LCD display. Figure 4-20 Multi SOFAR 3.3~12KTLX-G3 connecting Communications Register remote monitoring of SOFAR 3.3~12KTLX-G3 at its relevant website or APP according to monitoring device SN.
  • Page 39 SOFAR 3.3~12KTLX-G3 User manual Figure 4-22 Connect multiple USB acquisition stick (WIFI version) to wireless router The length of the RS485 communication cable should be  less than 1000 m. The length of the WIFI communication cable should be less ...

  • Page 40: Commissioning Of Inverter

    SOFAR 3.3~12KTLX-G3 User manual 5.Commissioning of inverter Outlines this Chapter Introduce SOFAR 3.3~12KTLX-G3 safety inspection and start processing 5.1. Cable Connection Inspection For first time operation, check the AC voltage and DC voltage are within the acceptable range Attention AC grid connection Use multimeter to confirm that three lines and PE line are connect correctly.
  • Page 41 SOFAR 3.3~12KTLX-G3 User manual Shenzhen SOFARSOLAR Co., Ltd. is not responsible for any consequences arising out of incorrect country code selection. If the inverter indicates any fault, please refer to Section 7.1 of this manual — — trouble shooting for help. - 37 - Copyright ©...

  • Page 42: Operation Interface

    SOFAR 3.3~12KTLX-G3 User manual 6.Operation interface Outlines of this chapter This section introduces the display, operation, buttons and LED indicator lights of SOFAR 3.3~12KTLX-G3 Inverter. 6.1. Operation and Display Panel Buttons and Indicator lights GFCI lamp Up button Normal lamp Down button Alarm lamp LCD screen...

  • Page 43: Standard Interface

    SOFAR 3.3~12KTLX-G3 User manual 6.2. Standard Interface LCD interface indicated inverter status, alarm information, communication connection, PV input current and voltage, grid voltage, current and frequency, today generation, total generation. Inverter working status, PV 1 input voltage and current Inverter working status, PV 2 input voltage and current Inverter working status, PV generated power Inverter working status, today generated electricity Inverter working status, total generated electricity...
  • Page 44 SOFAR 3.3~12KTLX-G3 User manual Inverter working status, grid voltage and frequency Inverter working status, USB status Inverter faulty alarm When control board successfully connected with communication board, the LCD display the current state of the inverter，display as shown in the figure below.

  • Page 45: Main Interface

    SOFAR 3.3~12KTLX-G3 User manual Inverter states includes: wait, check, normal and fault Wait: Inverter is waiting to Check State when reconnect the system. In this state, grid voltage value is between the max and min limits and so on; If not, Inverter will go to Fault State or Permanent State.
  • Page 46 SOFAR 3.3~12KTLX-G3 User manual (A)Enter setting Interface as below： 1.Enter Setting --------Long press DOWN button 1.Set time 7.Set Address 2.Clear Energy 8.Set Input mode 3.Clear Events 9.Set Language 4.Country Code 10.MPPT Scan 5.On-Off Control 11.Logic Interface 6.Set Energy 12.Set Power Ratio Long press the button to Enter the main interface of "1.
  • Page 47 SOFAR 3.3~12KTLX-G3 User manual Set the address (when you need to monitor multiple inverters simultaneously)， Default 01. 8. Set Input mode SOFAR 3.3~12KTLX-G3 has 2 MPPT circuit, each MPPT circuit can work interdependently, or divided into parallel mode. User can change the setting according to the configuration 9.

  • Page 48: Updating Inverter Software

    SOFAR 3.3~12KTLX-G3 User manual 3.SystemInfo ------Long press DOWN button 1.Inverter Type 2.Serial Number 3.Soft Version 4.Hard Version 5.Country 6.Modbus Address 7.Input Mode The user enters the main menu by long pressing the DOWN button, short press and turns the page to select menu contents, then long press the button to enter "3.
  • Page 49 SOFAR 3.3~12KTLX-G3 User manual Figure 6-1 Remove communication broad cover Step 2：Insert USB into computer； Step 3 ： SOFARSOLAR service team will send the software code to user, after user receive the file, please decompressing file and cover the original file in USB flash drive.
  • Page 50 SOFAR 3.3~12KTLX-G3 User manual Note: If screen shows “Communication fail”, “Update DSP1 fail”, “Update DSP2 fail” please turn off the DC switch, wait for the LCD screen turn off, then turn on the DC switch again, then Continue to update from step 5. - 46 - Copyright ©...

  • Page 51: Trouble Shooting And Maintenance

    SOFAR 3.3~12KTLX-G3 User manual 7.Trouble shooting and maintenance 7.1. Troubleshooting This section describes the potential errors for this product. Please read carefully for the following tips when doing the troubleshooting: 1) Check the warning message or faulty codes on the inverter information panel 2) If not any error code display on the panel, please check the following lists: —...
  • Page 52 SOFAR 3.3~12KTLX-G3 User manual If the grid voltage/frequency is within the acceptable range and AC wiring is correct, while The power grid ID03 GridOFP the alarm occurs repeatedly, contact technical frequency is too high support to change the grid over-voltage, under-voltage, over frequency, under-frequency The power grid frequency protection points after obtaining approval from...
  • Page 53 SOFAR 3.3~12KTLX-G3 User manual HwADFaultI DC input current ID24 sampling faulty The GFCI sampling value ConsistentF between the master DSP ID29 ault_GFCI and salve DSP is not consistent The Grid voltage ConsistentF sampling value between ID30 ault_Vgrid the master and salve is not consistent ConsistentF 3 lines' DCI consistency...
  • Page 54 SOFAR 3.3~12KTLX-G3 User manual ID49 Reserved Reserved Ensure the installation position and installation Heat sink1 TempFault_ method ID50 over-temperature HeatSink1 protection ID51 Reserved Reserved ID52 Reserved Reserved meet the requirements of this user manual. Check ID53 Reserved Reserved whether the ambient temperature of the ID54 Reserved Reserved installation position exceeds the upper limit.
  • Page 55 SOFAR 3.3~12KTLX-G3 User manual SwBusRmsO Inverter bus voltage ID72 overvoltage software Inverter bus voltage SwBusInsta ID73 instantaneous value ntOVP overvoltagesoftware ID81 Reserved Reserved ID82 DciOCP Dci overcuurent faulty SwOCPInsta Output instantaneous ID83 current protection SwBuckBoo BuckBoost software ID84 stOCP overcurrent SwAcRmsO Output RMS current ID85...
  • Page 56 SOFAR 3.3~12KTLX-G3 User manual Ensure the installation position and installation method meet the requirements of this user manual. Check whether the ambient temperature of the installation position exceeds the upper limit. If yes, OverTempD Overtemperature improve ventilation to decrease the temperature. ID113 erating derating...
  • Page 57 SOFAR 3.3~12KTLX-G3 User manual unrecoverH Busovervoltage hardware ID131 wBusOVP permanent fault unrecoverIp PV unbalance current ID132 vUnbalance permanent fault ID133 Reserved Reserved There are internal faults of inverter, turn OFF the “DC switch”, wait for 5 minutes, then turn ON the “DC switch”.
  • Page 58 SOFAR 3.3~12KTLX-G3 User manual ID146 WiFiFault WIFI failure BluetoothFa ID147 Bluetooth failure ID148 RTCFault RTCClock failure CommEEPR Communication BOARD ID149 OMFault EEPROM error CommEEPR Communication BOARD ID150 OMFault FLASH error ID151 Reserved Reserved There are internal faults of inverter, turn OFF the “DC switch”, wait for 5 minutes, then turn ON the SafetyVerFa ID152...
  • Page 59 SOFAR 3.3~12KTLX-G3 User manual LogicInterfa ID166 Logical interface derating ceDerating AlarmAntiR ID167 Anti Refluxing derating efluxing ID169 FanFault1 Fan 1 Alarm ID170 FanFault2 Fan 2 Alarm ID171 FanFault3 Fan 3 Alarm ID172 FanFault4 Fan 4 Alarm Check whether the inverter has dust and dust, ID173 FanFault5 Fan 5 Alarm whether there are foreign matters blocking the fan...
  • Page 60 SOFAR 3.3~12KTLX-G3 User manual Inverter cleaning  Please clean the inverter with an air blower, a dry & soft cloth or a soft bristle brush. Do NOT clean the inverter with water, corrosive chemicals, detergent, etc. Heat sink cleaning  For the long-term proper operation of inverters, ensure there is enough space around the heat sink for ventilation, check the heat sink for blockage (dust, snow, etc.) and clean them if they exist.

  • Page 61: Technical Data

    SOFAR 3.3~12KTLX-G3 User manual 8.Technical Data Outlines of this Chapter This chapter outline the SOFAR 3.3~12KTLX-G3 model type and technical parameters SOFAR SOFAR SOFAR SOFAR SOFAR SOFAR SOFAR Datasheet 3.3KTLX 4.4KTLX 5KTLX 5.5KTLX 6.6KTLX 8.8KTLX 11KTLX -G3-A Input (DC) Recommended Max. PV 4500 6000 7500...
  • Page 62 SOFAR 3.3~12KTLX-G3 User manual Grid voltage range 310Vac-480Vac (According to local standard) 50 / 60Hz Nominal frequency Grid frequency range 45Hz-55Hz/54Hz-66Hz (According to local standard) Active power adjustable 0~100% range THDi <3% 1 default ( adjustable+/-0.8) Power factor Performance 98.40% 98.40% 98.40% 98.40%...
  • Page 63 SOFAR 3.3~12KTLX-G3 User manual Allowable relative 0~100% humidity range 4000m Max. operating altitude Noise ≤40dB ≤40dB ≤40dB ≤40dB ≤40dB ≤40dB ≤40dB 17kg 17kg 17kg 17kg 17kg 17kg 18kg Weight Natural Cooling Dimension 430*385*182mm LCD&Bluetooth +APP Display 5 years, Optional: 7 years/ 10 years Standard warranty Standard EN61000-6-1, EN61000-6-2, EN61000-6-3, EN61000-6-4...
  • Page 64 SOFAR 3.3~12KTLX-G3 User manual SOFAR SOFAR SOFAR SOFAR Datasheet 8.8KTLX 10KTLX 11KTLX 12KTLX -G3-A -G3-A -G3-A Input (DC) Recommended Max. PV input 12000 15000 15000 18000 power (Wp) Max. DC power for 7500/15000 7500/15000 7500/15000 7500/15000 single MPPT (W) Number of MPP trackers Number for DC inputs...
  • Page 65 SOFAR 3.3~12KTLX-G3 User manual THDi <3% Power factor 1 default ( adjustable+/-0.8) Performance Max efficiency 98.50% 98.50% 98.50% 98.50% European weighted 98.00% 98.00% 98.00% 98.00% efficiency Self-consumption <1W at night MPPT efficiency >99.9% Protection DC reverse polarity protection Anti-islanding protection Leakage current protection Ground fault...
  • Page 66 SOFAR 3.3~12KTLX-G3 User manual Cooling Natural Dimension 430*385*182mm Display LCD&Bluetooth +APP Standard warranty 5 years, Optional: 7 years/ 10 years Standard EN61000-6-1, EN61000-6-2, EN61000-6-3, EN61000-6-4 Safety standard IEC62109-1/2, IEC62116, IEC61727, IEC61683, IEC60068(1,2,14,30) AS/NZS 4777, VDE V 0124-100, V 0126-1-1, VDE-AR-N 4105, CEI 0-21/CEI 0-16, Grid standard UNE 206 007-1, EN50549, G98/G99, EN50530, NB/T32004 Note: the product may be upgraded in the future.

  • Page 67: Quality Assurance

    SOFAR 3.3~12KTLX-G3 User manual 9.Quality Assurance Standard warranty period The standard warranty period of inverter is 60 months (5 years). There are two calculation methods for the warranty period: 1. Purchase invoice provided by the customer: the first flight provides a standard warranty period of 60 months (5 years) from the invoice date;...
  • Page 68 SOFAR 3.3~12KTLX-G3 User manual customers need to purchase and replace them from our company. Once the extended warranty service is purchased, our company will issue the extended warranty card to the customer to confirm the extended warranty period. Invalid warranty clause Equipment failure caused by the following reasons is not covered by the warranty: 1) The "warranty card"...
  • Page 69 ADD: 401, Building 4, AnTongDa Industrial Park, District 68,XingDong Community, XinAn Street, BaoAn District, Shenzhen, GuangDong.P.R. China Email: service@sofarsolar.com Tel: 0510-6690 2300 Web: www.sofarsolar.com...

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