Sofar 1.1KTL2-G3 User Manual
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Sofar 1.1KTL2-G3 User Manual

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SOFAR 1~4KTL2-G3
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Copyright © Shenzhen SOFARSOLAR Co., Ltd

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Summary of Contents for Sofar 1.1KTL2-G3

  • Page 1 User manual SOFAR 1~4KTL2-G3 Copyright © Shenzhen SOFARSOLAR Co., Ltd...

  • Page 2: Table Of Contents

    3.3. Product Overview ......................- 16 - 3.4. Tools ............................- 17 - 3.5. Determining the Installation Position ............- 19 - 3.6. Moving the SOFAR 1~4KTL2-G3 ..............- 21 - 3.7. Installing SOFAR 1~4KTL2-G3 ................- 22 - 4. Electrical Connections ......................- 24 - 4.1.
  • Page 3 User manual SOFAR 1~4KTL2-G3 6.4. Update Software online..................- 61 - 7. Trouble shooting ........................- 63 - 7.1. Trouble shooting ......................- 63 - 7.2. Maintenance ......................... - 71 - 8. Technical data..........................- 73 - 8.1. Input parameters (DC) ................... - 73 - 8.2.
  • Page 4 User manual SOFAR 1~4KTL2-G3 Notice This manual contains important safety instructions that must be followed during installation and maintenance of the equipment. Save these instructions! This manual must be considered as an integral part of the equipment. The manual must always accompany the equipment,even when it is transferred to another user or field.

  • Page 5: Preface

    This manual contains important safety instructions and installation instructions that must be followed during installation and maintenance of the equipment. Scope This product manual describes the installation,electrical connections, commissioning, maintenance and troubleshooting of SOFAR 1~4KTL2-G3 inverters: 1.1KTL2-G3 1.6KTL2-G3 2.2KTL2-G3 2.7KTL2-G3 3KTL2-G3 3.3KTL2-G3...
  • Page 6 User manual SOFAR 1~4KTL2-G3 Danger indicates a hazardous situation which, if not avoided, will result in death or serious injury. Danger Warning indicates a hazardous situation which, if not avoided, could result in death or serious injury. Warning Caution indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.

  • Page 7: Basic Safety Information

    User manual SOFAR 1~4KTL2-G3 1.Basic safety information If you have any question or problem when you read the following information, please contact Shenzhen SOFARSOLAR Co., Ltd. Note Outlines of this chapter Safety instruction It mainly introduce the safety instruction when install and operate the equipment.
  • Page 8 User manual SOFAR 1~4KTL2-G3 the DC switch OFF to cut off the high voltage DC of the PV array. You can also turn the switch in the PV combiner box OFF to cut off the high voltage DC. Otherwise, serious injury may be caused.
  • Page 9 User manual SOFAR 1~4KTL2-G3 Transport requirements If you find packing problems that may cause the damage of the inverter, or find any visible damage, please immediately notice the responsible transportation company. You can ask solar equipment installation contractor or Shenzhen SOFARSOLAR Co.Ltd for help if necessary.
  • Page 10 User manual SOFAR 1~4KTL2-G3 Must be trained; Warning Completely read manual operation understand relevant matter. Get permission from the local electrical gird operator, complete all electrical connections by professional electrical engineer, then connect inverter to electrical grid. Attention It’s forbidden to remove the tamper evident label, or open the inverter.

  • Page 11: Symbols And Signs

    User manual SOFAR 1~4KTL2-G3 that. EMC / noise level of inverter Electromagnetic compatibility (EMC) refers to that one electrical equipment functions in a given electromagnetic environment without any trouble or error, and impose no unacceptable effect upon the environment. Therefore, EMC represents the quality characters of an electrical equipment.
  • Page 12 User manual SOFAR 1~4KTL2-G3 inverter. Please read and understand the content of the symbols, and then start the installation. There is a residual voltage in the inverter! Before opening the equipment, operator should wait for five minutes to ensure the capacitor is discharged completely.

  • Page 13: Product Characteristics

    User manual SOFAR 1~4KTL2-G3 2.Product characteristics Outlines of this chapter Product dimensions It introduces the field of use, and the overall dimensions of SOFAR 1~4KTL2-G3 inverters. Function description It introduces how SOFAR 1~4KTL2-G3 inverters work and the function modules inside.
  • Page 14 SOFAR 2.7KTL2-G3 SOFAR 3KTL2-G3 SOFAR 3.3KTL2-G3: W×H×D=321mm×260.5mm×131.5mm SOFAR 4KTL2-G3: W×H×D=321mm×260.5mm×151.5mm Figure 2-2 Front view and left view dimensions of SOFAR 2.2KTL2-G3 Figure 2-3 Front view and left view dimensions of SOFAR 3.3KTL2-G3 - 8 - Copyright © Shenzhen SOFARSOLAR Co., Ltd...
  • Page 15 User manual SOFAR 1~4KTL2-G3 Figure 2-4 Bracket dimensions of SOFAR 1~4KTL2-G3 Labels on the equipment  The labels must NOT be hidden with objects and extraneous parts (rags,boxes,equipment,etc.);they must be cleaned regularly and kept visible at all times. - 9 -...

  • Page 16: Function Characteristics

    User manual SOFAR 1~4KTL2-G3 2.2.Function characteristics DC power generated by PV array is filtered through Input Board before entering into 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 17 User manual SOFAR 1~4KTL2-G3 percentage) . D. Self power reduction when grid is over frequency When the grid frequency is higher than the limited value, inverter will reduce output power which is necessary for the grid stability. E. Data transmission...

  • Page 18: Efficiency Curve

    User manual SOFAR 1~4KTL2-G3 2.3.Efficiency curve - 12 - Copyright © Shenzhen SOFARSOLAR Co., Ltd...

  • Page 19: Installation

    This topic describes how to install the SOFAR 1~4KTL2-G3 . Installation notes Do NOT install the SOFAR 1~4KTL2-G3 on flammable material. Do NOT install the SOFAR 1~4KTL2-G3 in an area used to store Flammable or explosive material. Danger The enclosure and heat sink are very hot while the...

  • Page 20: Checking Before Installation

    Check the outer packing materials for damage, such as holes and cracks. If any damage is found, do not unpack the SOFAR 1~4KTL2-G3 and contact the dealer as soon as possible. You are advised to remove the packing materials within 24 hours before installing the SOFAR 1~4KTL2-G3 inverter.
  • Page 21 User manual SOFAR 1~4KTL2-G3 PV- input terminal 1pcs Metal terminals secured to PV+ input power 1pcs cables Metal terminals secured to PV- input power 1pcs cables M5Hexagon screws 2pcs Expansion bolts 3pcs M5 flat washer 5pcs spring shim 5pcs Self-tapping screw...

  • Page 22: Product Overview

    （Only for DC switch lock） 3.3.Product Overview SOFAR 1~4KTL2-G3 inverter is 100% strictly inspected before package and delivery. It is forbidden to put the SOFAR 1~4KTL2-G3 inverter upside down during delivery. - 16 - Copyright © Shenzhen SOFARSOLAR Co., Ltd...

  • Page 23: Tools

    User manual SOFAR 1~4KTL2-G3 Please check the product package and fittings carefully before installation. CAUTION Figure.3-2 SOFAR 1~4KTL2-G3 inverter overview Table 3-2 SOFAR 1~4KTL2-G3 inverter overview DC Switch Breather valve PV input terminals USB/DRMs/RS485/CT WiFi/GPRS/Ethernet DC switch lock （ For Grid connection port Australian models）...
  • Page 24 User manual SOFAR 1~4KTL2-G3 Tool Model Function Hammer drill Used to drill holes on the Recommend wall. drill dia. 6mm Screwdriver Wiring Cross Remove and install AC screwdriver terminal screws Removal tool Remove PV terminal Wire stripper Strip wire 4mm Allen...

  • Page 25: Determining The Installation Position

    Operators wear Anti-dust Operators wear respirator 3.5.Determining the Installation Position Determine an appropriate position for installing the SOFAR 1~4KTL2-G3 inverter. Comply with the following requirements when determining the installation position: Figure 3-3 Installation Requirements - 19 - Copyright © Shenzhen SOFARSOLAR Co., Ltd...
  • Page 26 User manual SOFAR 1~4KTL2-G3 Figure 3-4 clearance for single SOFAR 1~4KTL2-G3 Inverter Figure 3-5 Installation of multiple SOFAR 1~4KTL2-G3 inverter - 20 - Copyright © Shenzhen SOFARSOLAR Co., Ltd...

  • Page 27: Moving The Sofar 1~4Ktl2-G3

    User manual SOFAR 1~4KTL2-G3 3.6.Moving the SOFAR 1~4KTL2-G3 This topic describes how to move the to the installation position Horizontally SOFAR 1~4KTL2-G3. Step 1 Open the packaging, insert hands into the slots on both sides of the inverter and hold the handles, as shown in Figure 3-6 and Figure 3-7.

  • Page 28: Installing Sofar 1~4Ktl2-G3

    User manual SOFAR 1~4KTL2-G3 Step 2 Lift the SOFAR 1~4KTL2-G3 from the packing case and move it to the installation position. To prevent device damage and personal injury, keep balance when moving the inverter because the inverter is heavy. Do not put the inverter with its wiring terminals...
  • Page 29 User manual SOFAR 1~4KTL2-G3 Step 4 Hook the inverter to the rear panel. Using an M5 screw to secure the inverter to the rear panel to ensure safety. Step 5 You can secure the inverter to the rear panel and protect if from stealing by installing an anti-theft lock (this action is optional).

  • Page 30: Electrical Connections

    SOFAR 1~4KTL2-G3 4.Electrical Connections Outlines of this chapter This topic describes the SOFAR 1~4KTL2-G3 inverter electrical connections. Read this part carefully before connecting cables. NOTE: Before performing electrical connections, ensure that the DC switch is OFF. Since the stored electrical charge remains in a capacitor after the DC switch is turned OFF.

  • Page 31: Electrical Connection

    User manual SOFAR 1~4KTL2-G3 SOFAR2.7KTL2-G3 SOFAR3KTL2-G3 14.5A SOFAR3.3KTL2-G3 SOFAR4KTL2-G3 19.3A The decisive voltage class(DVC) NOTE:The DVC is the voltage of a circuit which occurs continuously between any two live part in the worst-case rated operating condition when used as intended.

  • Page 32: Connecting Pgnd Cables

    User manual SOFAR 1~4KTL2-G3 4.2.Connecting PGND Cables Connect the inverter to the grounding electrode using protection ground (PGND) cables for grounding purpose. The inverter is transformer-less, requires the positive pole and negative pole of the PV array are NOT grounded.

  • Page 33: Connecting Dc Input Power Cables

    User manual SOFAR 1~4KTL2-G3 Note 1: L3 is the length between the insulation layer of the ground cable and the crimped part.L4 is the distance between the crimped part and core wires protruding from the crimped part. Note 2: The cavity formed after crimping the conductor crimp strip shall wrap the core wires completely.
  • Page 34 User manual SOFAR 1~4KTL2-G3 Cross-Sectional Area (mm ²) External Cable Recommended Diameter(mm) Range Value 4.0~6.0 4.5~7.8 Step 1 Remove cable glands from the positive and negative connectors. Step 2 Remove the insulation layer with an appropriate length from the positive and negative power cables by using a wire stripper as show in Figure 4-5.
  • Page 35 User manual SOFAR 1~4KTL2-G3 Figure 4-6 Connecting DC input power cables 1.Positive power cable 2.Negative power cable Step 5 Insert crimped power cables into corresponding housings until you hear a "click" sound. The power cables snap into place. Step 6 Reinstall cable glands on positive and negative connectors and rotate them against the insulation covers.

  • Page 36: Connecting Ac Output Power Cables

    RCD with rated residual current of 100mA or higher is suggested. Connect the SOFAR 1~4KTL2-G3 to the AC power distribution frame (PDF) or power grid using AC output power cables. It is not allowed for several inverters to use the same circuit breaker.
  • Page 37 User manual SOFAR 1~4KTL2-G3 Figure 4-9 NOT allowed: connect loads between inverter and circuit breaker Model SOFAR SOFAR SOFAR SOFAR SOFAR SOFAR SOFAR 1.1KTL2-G3 1.6KTL2-G3 2.2KTL2-G3 2.7KTL2-G3 3KTL2-G3 3.3KTL2-G3 4KTL2-G3 Cable(Copp ≧4mm² ≧4mm² ≧4mm² ≧6mm² ≧6mm² ≧6mm² ≧8mm² Breaker 16A/400...
  • Page 38 User manual SOFAR 1~4KTL2-G3 Inverter is equipped with two types of IP66 AC connector Type Ⅰ are randomly equipped with one) , connector Type connector Ⅱ and the AC output cable needs to be wired by the customer. The appearance of is shown in figure 4-11.
  • Page 39 User manual SOFAR 1~4KTL2-G3 A: 30~50mm B:6~8mm; through the waterproof locking cable gland; Figure 4-12 Figure 4-13 Step 3 Connect AC output cable as per the following requirements: Connect the yellow-green wire to the hole labeled "PE", fasten the wire using an Allen wrench;...
  • Page 40 User manual SOFAR 1~4KTL2-G3 Step 4 Secure the locking cable Step 5 Connect the AC connector to gland clockwise, shown as below: the output wiring connector of make sure that all the wires are inverter, rotate the AC connector securely connected.
  • Page 41 User manual SOFAR 1~4KTL2-G3 Make sure the grid is disconnected before removing the AC connector. Caution instructions ModeⅡ connector installation Step 1 Select appropriate cables Step 2 Disassemble the AC according to Table 4-2, Remove the connector according to the figure...
  • Page 42 User manual SOFAR 1~4KTL2-G3 Step 3 Connect AC output cable as per the following requirements: Connect the yellow-green wire to the hole labeled "PE", fasten the wire using an Cross screwdriver; Connect the brown wire to the hole labeled "L", fasten the wire using an Cross screwdriver;...
  • Page 43 User manual SOFAR 1~4KTL2-G3 Step 4 Insert the AC connector and Step 5 Connect the connected AC hear "click", then tighten the connector to the AC connector of waterproof nut at the the inverter. Turn the ac connector instantaneous value, as shown in knob to lock until you hear a "click"...

  • Page 44: Rs485,Ct,Inverter Logic Interface Connection

    AC connector. Caution 4.5.RS485,CT,inverter logic interface connection The communication interface location of the SOFAR 1~4KTL2-G3 is shown in the figure below. Figure 4-24 Table 4-3 Recommended communication cable size are shown below, The wiring methods are the same for RS485 and CT, this part describes their wiring methods and logic interface wiring method.
  • Page 45 User manual SOFAR 1~4KTL2-G3 Figure 4-25 Step 2 Unlock the waterproof cable gland, remove the stopper in the waterproof connector; Figure 4-26 A1：Waterproof stopper Step 3 Select appropriate cable according Table4-2, remove the insulation layer using a wire stripper, the length of the wire core is...
  • Page 46 User manual SOFAR 1~4KTL2-G3 Table 4-4 Function description of the communication terminals Logic Type RS485 interface Connect Label RS485 RS485 following Functio differential differential table signal- signal+ Figure 4-27 The logic interface pin definitions and circuit connections are as follows: The function of logical interface needs to be set on the display screen, please refer to the operation steps in section 6.3 .
  • Page 47 User manual SOFAR 1~4KTL2-G3 (a) Logic interface for AS/NZS 4777.2:2015, also known as inverter demand response modes (DRMs). The inverter will detect and initiate a response to all supported demand response commands within 2 s. The inverter will continue to respond while the mode remains asserted.
  • Page 48 User manual SOFAR 1~4KTL2-G3 Table 4-6 Function description of the terminal Description Connected to Pin NO. name (RRCR) Relay contact 1 input K1 - Relay 1 output Relay contact 2 input K2 - Relay 2 output Relay contact 3 input...
  • Page 49 User manual SOFAR 1~4KTL2-G3 100% (c) Logic interface for EN50549-1:2019, is in order to cease active power output within five seconds following an instruction being received at the input interface. Figure 4-29 Inverter – RRCR Connection Table 4-8 Function description of the terminal Pin NO.
  • Page 50 User manual SOFAR 1~4KTL2-G3 Table 4-9 The inverter is precon figured to the following RRCR power levels. Relay status: close is 1, open is 0 Power drop Active Power Cos(φ) rate ＜5 seconds 100% Step 4 Insert the terminal as per the printed label, and then tighten the screws to fix the waterproof cover, rotate the cable gland clockwise to fasten it securely.

  • Page 51: Wifi/Gprs Module Installation Procedure

    Step 1: Remove WiFi/GPRS waterproof cover using screw driver. Step 2: Install WiFi/GPRS module. Stpe 3: Fasten WiFi/GPRS module using screws. 4.7.Communication method SOFAR 1~4KTL2-G3 gird-connected inverters offer RS485 (standard) and Wi-Fi (optional) communication modes: A. Communication between one inverter and one PC: 1. RS485 Refer to the figure shown below, connect the TX+ and TX- of the inverter to the TX+ and TX- of the RS485 →...
  • Page 52 User manual SOFAR 1~4KTL2-G3 Refer to the figure shown below: (wireless function required for the PC) . (NOTE4) Figure 4-33 The operation information (generated energy, alert, operation status) of the inverter can be transferred to PC or uploaded to the server via Wi-Fi.
  • Page 53 User manual SOFAR 1~4KTL2-G3 Figure 4-34 2. WI-FI Refer to the figure shown below: (wireless function required for the PC). (NOTE4) Figure 4-35 The operation information (generated energy, alert, operation status) of the inverter can be transferred to PC or uploaded to the server via Wi-Fi.
  • Page 54 User manual SOFAR 1~4KTL2-G3 http://www.solarmanpv.com/portal/LoginPage.aspx to remote monitors the inverter. Note1: The length of the RS485 communication cable should be less than 1000 m. Note2: When multiple inverters are connected via RS485 wires, set mod-bus address to differentiate the inverters.

  • Page 55: Commissioning Of Inverter

    Step 2: Turn ON the AC circuit breaker. When the DC power generated by the solar array is adequate, the SOFAR 1~4KTL2-G3inverter will start automatically. Screen showing “normal” indicates correct operation. NOTE: Choose the correct country code. (refer to section 6.3 of this manual)
  • Page 56 User manual SOFAR 1~4KTL2-G3 If the inverter indicates any fault, please refer to Section 7.1 of this manual —— trouble shooting for help. NOTE:The inverter can monitor the power grid in real time,The protection can be realized when the power grid is abnormal, so that the inverter is separated from the power grid.

  • Page 57: Operation Interface

    SOFAR 1~4KTL2-G3 6.Operation interface Outlines of this chapter This section introduces the display, operation, buttons and LED indicator lights of SOFAR 1~4KTL2-G3 Inverter. 6.1.Operation and Display Panel Buttons and Indicator lights Button: Long press the button to enter the next menu or confirm the...

  • Page 58: Standard Interface

    User manual SOFAR 1~4KTL2-G3 ON: “ Fault ” or “ Permanent ”state 6.2.Standard Interface - 52 - Copyright © Shenzhen SOFARSOLAR Co., Ltd...
  • Page 59 User manual SOFAR 1~4KTL2-G3 When power-on, LCD interface displays INITIALIZING, refer below picture. When control board successfully connected with communication board, the LCD display the current state of the inverter，display as shown in the figure below. - 53 - Copyright © Shenzhen SOFARSOLAR Co., Ltd...
  • Page 60 User manual SOFAR 1~4KTL2-G3 Inverter states includes: wait、check、normal、fault and permanent Wait: Inverter is waiting to Check State at the end of reconnection time. 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 61: Main Interface

    User manual SOFAR 1~4KTL2-G3 6.3.Main Interface Long press the button under standard interface to enter into main interface, including: Normal ------Long press the button 1.Enter Setting 2.Event List 3.SystemInfo 4.Display Time 5.Software Update (A) “Enter Setting” Interface as below: 1.Enter...
  • Page 62 User manual SOFAR 1~4KTL2-G3 8.Set Address 19.StartTime 9.Set Input mode 20.Set ElecMeter 10.Set Language 21.Logic interface 11.Set Start Parameter 22.Set Power Ratio Long press the button to Enter the main interface of "1.Enter Setting" and long press to enter the setting menu. You can select the content you want to set by short pressing the button.
  • Page 63 User manual SOFAR 1~4KTL2-G3 *Mark serial number for temporarily can not set safety regulations country code country code country code country Germany Korea Thailand PEA AR-N4105 CEI0-21 Sweden Thailand MEA Internal LV-Range-50H Australia Europe General Spain CEI0-21 External EU EN50549...
  • Page 64 The input modes of the SOFAR inverter are divided into parallel mode and independent mode (when multi-channel MPPT is input) . Since SOFAR 1 ~ 4KTL2-G3 has only one group of MPPT input, the input modes are not distinguished. 10. Set Language - 58 - Copyright ©...
  • Page 65 User manual SOFAR 1~4KTL2-G3 Set the inverter display language. 11. Set Start Parameter 12. Set Safety Voltage 13. Set Safety Frequency 14. Insulation Resistance User can modify the above 4 parameters of the machine through the SD card, and the user needs to copy the parameter information that needs to be modified into the SD card in advance.
  • Page 66 User manual SOFAR 1~4KTL2-G3 20. Set ElecMeter Enable or disable meter functions. 21. Logic interface Enable or disable logical interfaces. Please refer to this manual 4.5 RS485, CT, inverter logic interface connection for details. 22. Set Power Ratio Set generation ratio.

  • Page 67: Update Software Online

    The user needs to copy the upgrade file to the USB flash drive. 6.4.Update Software online SOFAR 1~4KTL2-G3 inverters offer software upgrade via USB flash drive to maximize inverter performance and avoid inverter operation error caused by software bugs.
  • Page 68 User manual SOFAR 1~4KTL2-G3 nut, Make sure the communication line is no longer the force. Then remove the waterproof cover, In order to avoid loosening the communication plug which has been connected. Step 2 Insert the USB flash drive into the compute.

  • Page 69: Trouble Shooting

    User manual SOFAR 1~4KTL2-G3 7.Trouble shooting Outlines of this chapter This topic describes how to perform daily maintenance and troubleshooting to ensure long term proper operation of the inverter. 7.1.Trouble shooting This section contains information and procedures for solving possible problems with the inverter.
  • Page 70 User manual SOFAR 1~4KTL2-G3 connected and undamaged? Follow the steps below to view recorded problems:Long press the button to enter the main menu from the standard interface. Select “ 2. Event List ” then long press the button to enter event list.
  • Page 71 User manual SOFAR 1~4KTL2-G3 to change the grid over-voltage, under-voltage, over frequency, under-frequency protection points after obtaining approval from the local electrical grid operator. Check whether too few PV modules are series connected in a PV string, thus the voltage (Vmp) of the PV string is lower...
  • Page 72 User manual SOFAR 1~4KTL2-G3 the insulation resistance between the PV array and earth (ground) is too low, then check the insulation conditions of PV cable. The input Check whether the input current is current is too higher than the maximum input...
  • Page 73 User manual SOFAR 1~4KTL2-G3 normal operating status after the solar irradiance returns to normal level. The bus voltage ID26-ID27 are internal faults of inverter, ID26 Bus OVP Is too high turn OFF the “DC switch”, wait for 5 minutes, then turn ON the “DC switch”.
  • Page 74 User manual SOFAR 1~4KTL2-G3 between the master DSP and slave DSP is not consistent The GFCI sampling value Consistent between the ID52 Fault_GFCI master DSP and slave DSP is not consistent The spi communication Spi Comm ID53 between the Lose...
  • Page 75 User manual SOFAR 1~4KTL2-G3 Bus OVP has cause unrecoverable fault The grid current Unrecover is unbalance, ID67 Iac Rms and has cause unrecoverable Unbalance fault The input current is Unrecover Ipv unbalance, and ID68 has cause Unbalance unrecoverable fault The bus voltage...
  • Page 76 User manual SOFAR 1~4KTL2-G3 Relay has Unrecover ID77 happen Relay Fail permanent fault Ensure the installation position and installation method meet the The inverter has requirements of Section 3.4 of this user derated because Over Temp manual. Check whether the ambient...

  • Page 77: Maintenance

    User manual SOFAR 1~4KTL2-G3 consistent communication board is not consistent Communicati communication ID95 Board ID95~ID96 are internal faults of inverter, board EEPROM turn OFF the “DC switch”, wait for 5 EEPROM is fault minutes, then turn ON the “DC switch”.
  • Page 78 User manual SOFAR 1~4KTL2-G3 Please clean the heat sink with an air blower, a dry & soft cloth or a soft bristle brush. Do NOT clean the heat sink with water, corrosive chemicals, detergent, etc. - 72 - Copyright © Shenzhen SOFARSOLAR Co., Ltd...

  • Page 79: Technical Data

    User manual SOFAR 1~4KTL2-G3 8.Technical data Outlines of this chapter This topic lists the technical specifications for all SOFAR 1~4KTL2-G3 inverters. 8.1.Input parameters (DC) SOFAR SOFAR SOFAR SOFAR SOFAR SOFAR SOFAR Technical Data 1.1KTL2 1.6KTL 2.2KTL2 2.7KTL2 3KTL2- 3.3KTL 4KTL2-...

  • Page 80: Output Parameters (Ac)

    User manual SOFAR 1~4KTL2-G3 circuit current Number of MPPT/ Number of DC input Input terminal MC4/H4 type 8.2.Output parameters (AC) SOFAR SOFAR SOFAR SOFAR SOFAR SOFAR SOFAR Technical Data 1.1KTL2 1.6KTL 2.2KTL 2.7KTL 3KTL2- 3.3KTL 4KTL2- 2-G3 2-G3 2-G3 2-G3...
  • Page 81 User manual SOFAR 1~4KTL2-G3 Grid frequency 45~55Hz/55~65Hz (According to local grid standard) range THDi <3% Power factor 1 default (+/-0.8 adjustable) - 75 - Copyright © Shenzhen SOFARSOLAR Co., Ltd...

  • Page 82: Efficiency,Protection And Communication

    User manual SOFAR 1~4KTL2-G3 8.3.Efficiency, Protection and Communication SOFAR SOFAR SOFAR SOFAR SOFAR SOFAR SOFAR Technical Data 1.1KTL 1.6KTL 2.2KTL 2.7KTL 3KTL2- 3.3KTL 4KTL2- 2-G3 2-G3 2-G3 2-G3 2-G3 Max.Efficiency 97.3% 97.7% Euro Efficiency 96.7% 97.2% MPPT >99.9% Efficiency Self-consumpti <1W...
  • Page 83 User manual SOFAR 1~4KTL2-G3 Back-feed current to the array Output short circuit current 200A/1us to the array Output inrush current and 0.8A/2us duration - 77 - Copyright © Shenzhen SOFARSOLAR Co., Ltd...

  • Page 84: General Date

    User manual SOFAR 1~4KTL2-G3 8.4.General Date SOFAR SOFAR SOFAR SOFAR SOFAR SOFAR SOFAR Technical Data 1.1KTL 1.6KTL 2.2KTL 2.7KTL 3KTL2- 3.3KTL 4KTL2- 2-G3 2-G3 2-G3 2-G3 2-G3 Topology Transformerless Ambient temperature -30~60℃ range Permissible 0~100% humidity range Noise figure <25dB...
  • Page 85 User manual SOFAR 1~4KTL2-G3 mode Degree of IP65 protection - 79 - Copyright © Shenzhen SOFARSOLAR Co., Ltd...

  • Page 86: Quality Assurance

    User manual SOFAR 1~4KTL2-G3 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 87 User manual SOFAR 1~4KTL2-G3 warranty but have not yet passed the standard quality warranty period. Customers shall bear different extended premium. During the extended warranty period, PV components GPRS, WIFI and lightning protection devices are not included in the extended warranty period.
  • Page 88 User manual SOFAR 1~4KTL2-G3 packaging during transportation) . Please claim directly from the transportation company or insurance company as soon as possible and obtain damage identification such as container/package unloading; 9) Failure to follow the product user manual, installation manual and maintenance guidelines;...
  • Page 89 User manual SOFAR 1~4KTL2-G3 - 1 - Copyright © Shenzhen SOFARSOLAR Co., Ltd...

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