Sofar solar KTLX-G3 Series User Manual
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Sofar solar KTLX-G3 Series User Manual

Solar grid-tied inverter
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User manual
Solar Grid-tied Inverter
Product Model: SOFAR 15~24KTLX-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 KTLX-G3 Series

  • Page 1 User manual Solar Grid-tied Inverter Product Model: SOFAR 15~24KTLX-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 15~24KTLX-G3 User manual Catalog 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.

  • Page 3: Preface

    SOFAR 15~24KTLX-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 SOFAR 15~24KTLX-G3 User manual ⚫ Outline This manual is an integral part of SOFAR 15~24KTLX-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 15KTLX-G3 SOFAR 17KTLX-G3 SOFAR 20KTLX-G3...

  • Page 5: Basic Safety Information

    SOFAR 15~24KTLX-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 15~24KTLX-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 15~24KTLX-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 15~24KTLX-G3 User manual Maintenance and repair 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 at least Danger 5 minutes before carry any maintenance or repair work.
  • Page 9 SOFAR 15~24KTLX-G3 User manual Caution of burn injuries due to hot enclosure! Only touch the screen and pressing key of the inverter while it is working Caution 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).
  • Page 10 SOFAR 15~24KTLX-G3 User manual Comply with The product complies with the CE Conformite Euroeenne (CE) Certification Certification This symbol indicates the position for Grounding Terminal the connections of an additional equipment grounding conductor Observe the Read all documentation supplied with documentation the product before install Positive pole and negative...

  • Page 11: Product Characteristics

    SOFAR 15~24KTLX-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 SOFAR 15~24KTLX-G3 User manual batteries will against the warranty condition and SOFARSOLAR will not take the responsibility. Intended grid types SOFAR 15~24KTLX-G3 configurations. For the TT type of electricity grid，the voltage between neutral and earth should be less than 30V. inverters are compatible with TN-S, TN-C, TN-C-S, TT, IT grid.
  • Page 13 SOFAR 15~24KTLX-G3 User manual 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 15KTLX-G3、17KTLX-G3、20KTLX-G3、22KTLX-G3、24KTLX-G3 L×W×H=520*430*189mm Figure 2-3 Front, side and back of the machine (15~24K) Figure 2-4a Bottom view(15~17K) Figure 2-4b Bottom view(20~24K) Note: 15~24K supports 4-channel PV string input.
  • Page 14 SOFAR 15~24KTLX-G3 User manual Function description of inverter box bottom 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 Fans Figure 2-6 Bottom view of the SOFAR 15~24KTLX-G3 - 10 - Copyright ©...

  • Page 15: Function Description

    SOFAR 15~24KTLX-G3 User manual Labels on the equipment Note: label must NOT be hidden with objects and extraneous parts (rags, boxes, equipment, etc.,); they must be cleaned regularly and kept visible at all times. Figure 2-7 Product label 2.2. Function Description DC power generated by PV arrays is filtered through Input Board then enter Power Board.

  • Page 16: Electrical Block Diagram

    SOFAR 15~24KTLX-G3 User manual Function Module A. Energy management unit Remote control to start/ shunt down inverter through an external control B. Feeding reactive power into the grid The inverter is able to produce reactive power thus to feed it into the grid through the setting of the phase shift factor.

  • Page 17: Efficiency And Derating Curve

    SOFAR 15~24KTLX-G3 User manual 2.4. Efficiency and derating curve Figure 2-9 Power efficiency curve (take 20K for example) 180 190 200 210 220 230 240 250 260 270 280 290 300 Vgrid (V) Figure 2-10 Rated Power ratio vs Grid Voltage - 13 - Copyright ©...

  • Page 18: Installation

    SOFAR 15~24KTLX-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...
  • Page 19 SOFAR 15~24KTLX-G3 User manual 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 20 SOFAR 15~24KTLX-G3 User manual PV- metal pin 4PCS M6*30 Hexagon screws 1 PCS Manual 1PCS Warranty Card 1PCS Quality Certificate 1PCS R-type terminal 5PCS Communication 1PCS Terminal USB acquisition stick 1 PCS (Optional) (WIFI/Ethernet) - 16 - Copyright © Shenzhen SOFARSOLAR Co., Ltd.

  • Page 21: Tools

    SOFAR 15~24KTLX-G3 User manual 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 Used to drill holes on the wall drill @ 60mm Use to tighten and loosen screws when installing AC Screwdriver power cable...

  • Page 22: Determining The Installation Position

    SOFAR 15~24KTLX-G3 User manual Check grounding cable, PV Multimeter positive and negative pole Marker Mark signs Measuring Measure distance Tape Ensure the rear panel is Level properly installed Installer wear when installing ESD gloves product Installer wear when installing Safety goggles product Installer wear when installing Mask...
  • Page 23 SOFAR 15~24KTLX-G3 User manual Figure 3-1Installation Position Selection Figure 3-2Clearance for single inverter - 19 - Copyright © Shenzhen SOFARSOLAR Co., Ltd.

  • Page 24: Moving Of Inverter

    SOFAR 15~24KTLX-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 25: Installation

    SOFAR 15~24KTLX-G3 User manual 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 avoid the damage of the shell of inverter.
  • Page 26 SOFAR 15~24KTLX-G3 User manual Figure 3-8 Installation instruction (2) Step 5：User can use a lock to block the inverter in case of stealing (Optional) - 22 - Copyright © Shenzhen SOFARSOLAR Co., Ltd.

  • Page 27: Electrical Connection

    SOFAR 15~24KTLX-G3 User manual 4. Electrical Connection Outlines of this Chapter This section introduces the electrical connection for the product. Please read the information carefully, it may helpful to understand the grounding wiring, DC input connection, AC output connection and communication connection. Caution: Before performing electrical connections, ensure the DC switch is OFF and AC circuit breaker is OFF.

  • Page 28: Grounding Connection (Pe)

    SOFAR 15~24KTLX-G3 User manual SOFAR 24KTLX-G3 38.3A Note: In the above table, the first value of IscPV is for MPPT1, the second value of IscPV is for MPPT2. 4.1. Electrical Connection Figure 4-1 flowchart for connecting cables to the inverter 4.2.
  • Page 29 SOFAR 15~24KTLX-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 30: Connect Grid Side Of Inverter (Ac-Output)

    SOFAR 15~24KTLX-G3 User manual 1. M6 screw 2. OT terminal 3. threaded hole Figure 4-4 Inverter external grounding instruction diagram 4.3. Connect grid side of inverter (AC-Output) SOFAR 15~24KTLX-G3 connect to utility grid by using AC power cable. The AC connection must meet the requirement of local grid operator Ban multiple Inverters use one circuit breaker Ban connect loads between inverter and circuit breaker...
  • Page 31 SOFAR 15~24KTLX-G3 User manual SOFAR 7~14， 63A/230V/3P current 18~25 22KTLX-G3 recommend 12 leakage protection 0.1A SOFAR 7~14， 63A/230V/3P current 18~25 24KTLX-G3 recommend 12 leakage protection 0.1A Figure 4-5 Incorrect connection between load and inverter The resistance at connection point must less than 2Ω. 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%.
  • Page 32 SOFAR 15~24KTLX-G3 User manual The AC output terminal of this product is equipped with high current 5-core terminal block and customized AC output waterproof cover, which can meet the IP65 level requirements after installation. AC cable need customer self connect, the out looking is as below figure 4-7: Multi-core cable Figure 4-7 SOFAR 15~24KTLX-G3 AC terminal connector picture...
  • Page 33 SOFAR 15~24KTLX-G3 User manual R type terminal, Insulating sleeve, RNBS14-6 (8awg). terminal shall not be exposed. 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 (4~5 N · m). Tighten the lock nut of PG terminal clockwise (7~8 N ·...

  • Page 34: Connect Pv Side Of Inverter (Dc-Input)

    SOFAR 15~24KTLX-G3 User manual 4.4. Connect PV side of inverter (DC-Input) Table 4.2 recommend DC input cable size (maximum tolerance voltage >= 1100V PV cable) ） Copper cable cross section area（mm Cable OD (mm) 2.5~6.0 6.0~9.0 Step 1: Figure 5-2 Recommend DC cable size Step1: Find the metal contact pins in the accessories bag, connect the cable according below diagram (1.Positive cable, 2.
  • Page 35 SOFAR 15~24KTLX-G3 User manual Figure 4-13 DC cable connection(3) Step 4: Measure PV voltage of DC input with multimeter, verify DC input cable polar and connect DC connector with inverter until hearing a slight sound indicated connection succeed. 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!

  • Page 36: Communication Connection

    SOFAR 15~24KTLX-G3 User manual Figure 4-16 Removal DC connector 4.5. Communication Connection When layout the wiring diagram, please separate the communication wiring and power wiring in case the signal be affected. Note 15~24KTLX-G3 inverter has one USB Port and one COM Port, as shown in the following figure.
  • Page 37 SOFAR 15~24KTLX-G3 User manual Procedure： ① ② ③ 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 twisted Communication 2 or 3core：4~8 0.25~1...
  • Page 38 SOFAR 15~24KTLX-G3 User manual DRM3/7 DRM4/8 13-16 Blank PIN Procedure： ② ③ ① 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 39 SOFAR 15~24KTLX-G3 User manual Figure 4-18 Picture of the RS485/USB converter and PC terminal If only one SOFAR 15~24KTLX-G3 is used, use a communication cable, refer to section 4.5.2 for COM pin definition, and choose either of the two RS485 ports. Figure 4-19 A single SOFAR 15~24KTLX-G3 connecting communications If multiple SOFAR 15~24KTLX-G3 are used, connect all SOFAR 15~24KTLX-G3 in daisy chain mode over the RS485 communication cable.
  • Page 40 SOFAR 15~24KTLX-G3 User manual WIFI / Ethernet By the USB acquisition stick (WIFI / Ethernet), transfer the inverter power output information, alarm information, operation state to the PC terminal or local data acquisition device, then uploaded to the server. Register remote monitoring of SOFAR 15~24KTLX-G3 at its relevant website or APP according to monitoring device Figure 4-21 Connect one USB acquisition stick (WIFI version) to wireless router Figure 4-22 Connect multiple USB acquisition stick (WIFI version) to wireless router...

  • Page 41: Commissioning Of Inverter

    SOFAR 15~24KTLX-G3 User manual 5. Commissioning of inverter Outlines this Chapter Introduce SOFAR 15~24KTLX-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 42 SOFAR 15~24KTLX-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. - 38 - Copyright ©...

  • Page 43: Operation Interface

    SOFAR 15~24KTLX-G3 User manual 6. Operation interface Outlines of this chapter This section introduces the display, operation, buttons and LED indicator lights of SOFAR 15~24KTLX-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 44: Standard Interface

    SOFAR 15~24KTLX-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 45 SOFAR 15~24KTLX-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. - 41 - Copyright ©...

  • Page 46: Main Interface

    SOFAR 15~24KTLX-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 47 SOFAR 15~24KTLX-G3 User manual (A)Enter setting Interface as below： 1.Enter Setting --------Long press DOWN button 1.Set time 2.Clear Energy 3.Clear Events 4.Country Code 5.On-Off Control 6.Set Energy 7.Set Address 8.Set Input mode 9.Set Language 10.MPPT Scan 11.Logic Interface 12.Set Power Ratio Long press the button to Enter the main interface of "1.
  • Page 48 SOFAR 15~24KTLX-G3 User manual 4. Country Code Long press button, enter interface, save the specific file into USB and insert USB into inverter communication port 5. On-Off Control Inverter on-off local control. 6. Set Energy Set the total power generation. You can modify the total power generation through this option.
  • Page 49 SOFAR 15~24KTLX-G3 User manual in the front. Please refer to below picture. Long press the button and short press the button to turn the page in standard interface, then enter into “2. Event List” interface. 2. Event List 1. Current event 2.

  • Page 50: Updating Inverter Software

    SOFAR 15~24KTLX-G3 User manual 6.4. Updating Inverter Software SOFAR 15~24KTLX-G3 inverter offer software upgrade via USB flash drive to maximize inverter performance and avoid inverter operation error caused by software bugs. Step 1：turn off AC circuit breaker and DC switch, remove the communication board cover as below figure.
  • Page 51 SOFAR 15~24KTLX-G3 User manual "Update DSP1 Fail"; If slave DSP update success, the LCD will display"Update DSP2 Success", otherwise display "UpdateDSP2 Fail". Step 9：After the update is completed, turn off the DC breaker, wait for the LCD screen extinguish, then recover the communication waterproof and then turn on the DC breaker and AC breaker again, the inverter will enter the running state.

  • Page 52: Trouble Shooting And Maintenance

    SOFAR 15~24KTLX-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: Check the warning message or faulty codes on the inverter information panel If not any error code display on the panel, please check the following lists:...
  • Page 53 SOFAR 15~24KTLX-G3 User manual List 8-1 Even list Even Event List Even List Even Reason & Solution List ID Name Description If the alarm occurs occasionally, the possible cause is that the electric grid is The power abnormal occasionally. inverter ID01 GridOVP grid voltage is...
  • Page 54 SOFAR 15~24KTLX-G3 User manual If the fault occurs occasionally, the possible cause is that the external circuits are abnormal occasionally. inverter automatically returns to normal operating status after the fault is rectified. If the fault ID05 GFCIFault GFCI Fault occurs frequently and lasts a long time, check whether the insulation resistance between the PV array and earth(ground) is too low, then check the insulation...
  • Page 55 SOFAR 15~24KTLX-G3 User manual HwADFaultD The DCI ID18 sampling error Grid voltage HwADFaultV sampling ID19 Grid(DC) faulty（DC side） Grid voltage HwADFaultV sampling ID20 Grid(AC) faulty（AC side） Current GFCIDeviceF leakage ID21 ault(DC) sampling（DC side） Current GFCIDeviceF leakage ID22 ault(AC) sampling（AC side） Current There are internal faults of inverter, turn OFF the “DC switch”, wait for 5 minutes,...
  • Page 56 SOFAR 15~24KTLX-G3 User manual is not consistent The Grid voltage sampling value ConsistentFa ID30 between the ult_Vgrid master and salve is not consistent 3 lines' DCI ConsistentFa ID31 consistency ult_DCI error SpiCommFa Communicatio ID33 n Faulty （DC ult(DC) side） There are internal faults of inverter, turn OFF the “DC switch”, wait for 5 minutes, then turn ON the “DC switch”.
  • Page 57 SOFAR 15~24KTLX-G3 User manual of Capital Airlines. Please check the wiring of PV string, whether each PV input is independent. If PvConfigErr Input mode ID44 the use method is not ruled out, please incorrect contact the new energy customer service of Capital Airlines.
  • Page 58 SOFAR 15~24KTLX-G3 User manual ID61 Reserved Reserved Unbalanced VbusRmsUn ID65 RMS value of There are internal faults of inverter, turn balance bus voltage OFF the “DC switch”, wait for 5 minutes, Unbalanced then turn ON the “DC switch”. Check whether the fault is rectified. If no, please VbusInstant instantaneous ID66...
  • Page 59 SOFAR 15~24KTLX-G3 User manual ID81 Reserved Reserved ID82 DciOCP overcuurent faulty Output SwOCPInsta instantaneous ID83 current protection BuckBoost SwBuckBoos ID84 software tOCP overcurrent Output RMS SwAcRmsOC ID85 current protection There are internal faults of inverter, turn OFF the “DC switch”, wait for 5 minutes, then turn ON the “DC switch”.
  • Page 60 SOFAR 15~24KTLX-G3 User manual ID100 Reserved Reserved PV hardware ID102 HwPVOCP overcurrent AC output ID103 HwACOCP hardware There are internal faults of inverter, turn overcurrent OFF the “DC switch”, wait for 5 minutes, then turn ON the “DC switch”. Check Overload ID110 Overload1...
  • Page 61 SOFAR 15~24KTLX-G3 User manual If it occurs frequently, please check whether the grid voltage and grid frequency are within the allowable range of the inverter; if not, please contact the customer service of SOFARSOLAR; if yes, FreqDeratin Frequency ID114 please check whether the connection derating between the circuit breaker at the AC side and the output cable is normal;...
  • Page 62 SOFAR 15~24KTLX-G3 User manual Busovervoltag unrecoverH e hardware ID131 wBusOVP permanent fault PV unbalance unrecoverIp current ID132 vUnbalance permanent fault ID133 Reserved Reserved Output There are internal faults of inverter, turn transient OFF the “DC switch”, wait for 5 minutes, unrecoverAc ID134 overcurrent...
  • Page 63 SOFAR 15~24KTLX-G3 User manual Input hardware unrecoverH ID139 overcurrent wPVOCP permanent fault Relay unrecoverRe ID140 permanent layFail fault unrecoverVb Unbalanced ID141 usUnbalance permanent fault There are internal faults of inverter, turn LightningPro OFF the “DC switch”, wait for 5 minutes, ID142 tectionFault DC SPD failure...
  • Page 64 SOFAR 15~24KTLX-G3 User manual RTCClock ID148 RTCFault failure Communicatio CommEEPR ID149 n BOARD OMFault EEPROM error Communicatio CommEEPR ID150 n BOARD OMFault FLASH error SciCommLos There are internal faults of inverter, turn ID153 communicatio e(DC) OFF the “DC switch”, wait for 5 minutes, n（DC side）...
  • Page 65 SOFAR 15~24KTLX-G3 User manual RemoteShut RemoteShutd the DC switch of the inverter, wait for 5 ID162 down minutes, and then turn on the DC switch. Observe whether the fault has been eliminated after the inverter is restarted. If Drms0Shutd Drms0 shunt ID163 not, please contact the customer service of down...

  • Page 66: Maintenance

    SOFAR 15~24KTLX-G3 User manual There are internal faults of inverter, turn String fuse OFF the “DC switch”, wait for 5 minutes, ID193- StringFuse_F open circuit then turn ON the “DC switch”. Check ID224 ault0-31 alarm whether the fault is rectified. If no, please contact technical support.

  • Page 67: Fan Maintenance

    SOFAR 15~24KTLX-G3 User manual 7.3. Fan Maintenance For SOFAR 15~24KTLX-G3 series inverter with fans, if fan is broken or not working properly may cause inverter heat dissipation issue and effect the working efficiency of inverter. Thus, fans need to have regularly cleaning and maintain, details operating as below: Step 1: Closed inverter, check the wiring side to ensure all electrical connection of inverter is turn off...

  • Page 68: Technical Data

    SOFAR 15~24KTLX-G3 User manual 8. Technical Data Outlines of this Chapter This chapter outline the SOFAR 15~24KTLX-G3 model type and technical parameters Model SOFAR SOFAR SOFAR SOFAR SOFAR Datasheet 15KTLX-G3 17KTLX-G3 20KTLX-G3 22KTLX-G3 24KTLX-G3 Input (DC) Recommended Max. PV input 22500Wp 25500Wp 30000Wp...
  • Page 69 SOFAR 15~24KTLX-G3 User manual Output (AC) Rated power 15000W 17000W 20000W 22000W 24000W Max. AC power 16500VA 18700VA 22000VA 242000VA 26400VA Max. output 23.9A 27.1A 31.9A 35.1A 38.3A current Nominal grid 3/N/PE,220V/380Vac,230V/400Vac voltage Grid voltage range 310Vac-480Vac (According to local standard) Nominal frequency 50 / 60Hz Grid frequency...
  • Page 70 SOFAR 15~24KTLX-G3 User manual Ground fault monitoring PV-array string fault monitoring Anti-reverse power controller DC switch AFCI Optional Input/ output SPD PV: type II standard, AC: type II standard Communication Power According to certification and request management unit Communication RS485/USB/ Bluetooth, Optional: WIFI /Ethernet Operation data 25 years storage...
  • Page 71 SOFAR 15~24KTLX-G3 User manual Display LCD & Bluetooth +APP Warranty 5 years/ 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, Grid standard CEI 0-21/CEI 0-16, UNE 206 007-1, EN50549, G98/G99, EN50530, NB/T32004 Note: the product may be upgraded in the future.

  • Page 72: Quality Assurance

    SOFAR 15~24KTLX-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 73 SOFAR 15~24KTLX-G3 User manual 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: The "warranty card"...
  • Page 74 Product Name: Solar Grid-tied Inverter 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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