Sofarsolar SOFAR 3300TL-G3 - User Manual

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Shenzhen SOFARSOLAR CO., Ltd.

Solar Grid-tied Inverter

Product Model: SOFAR 1.1K-3.3KTL-G3

User manual

Table of Contents

Questions and Answers

V
Victoria HunterAug 18, 2025
What to do if Sofarsolar SOFAR 3300TL-G3 shows power grid voltage too high?
- K
  Kristin WilliamsAug 18, 2025
  If the alarm occurs occasionally, the issue might be temporary grid fluctuations; the inverter should return to normal when the grid stabilizes. However, if this happens frequently, verify that your grid voltage and frequency are within the acceptable range. If they are not, contact technical support. If the voltage and frequency are normal, inspect the AC circuit breaker and AC wiring. If problems persist despite correct voltage/frequency and wiring, contact technical support to adjust the inverter's protection settings after getting approval from your local grid operator.
W
William WhiteAug 20, 2025
What to do if Sofarsolar SOFAR 3300TL-G3 Inverter shows GFCI fault?
- R
  robinalexanderAug 20, 2025
  If the GFCI fault occurs occasionally, it might be due to temporary external circuit abnormalities, and the inverter should automatically return to normal once the issue is resolved. However, if the fault occurs frequently and lasts a long time, check the insulation resistance between the PV array and earth (ground) to ensure it is not too low. Also, inspect the insulation of the PV cables.
R
rebeccanguyenAug 23, 2025
Why is my Sofarsolar Inverter temp too high?
- T
  Tiffany HamiltonAug 23, 2025
  The inverter temperature might be too high because the ambient temperature of its installation location exceeds the upper limit. To resolve this, improve ventilation around the inverter to decrease the temperature.
G
Gary ArnoldAug 26, 2025
What to do if Sofarsolar Inverter showing input voltage too high?
- J
  james68Aug 26, 2025
  The input voltage might be too high because too many PV modules are connected in series in a PV string, causing the voltage (Voc) of the PV string to exceed the inverter's maximum input voltage. To fix this, adjust the number of PV modules connected in series to decrease the voltage of the PV string, ensuring it fits within the inverter's input voltage range. The inverter should automatically return to normal operation after these adjustments.
C
Charles HughesAug 28, 2025
Why Sofarsolar SOFAR 3300TL-G3 Inverter showing input voltage too low?
- L
  Lori RogersAug 28, 2025
  The input voltage might be too low because too few PV modules are connected in series in a PV string. This results in the voltage (Vmp) of the PV string being lower than the inverter's minimum operating voltage. To resolve this, adjust the number of series-connected PV modules to increase the voltage of the PV string, ensuring it fits within the inverter's input voltage range. The inverter will automatically return to normal operation after the correct adjustments.
M
martintammyAug 30, 2025
What to do if Sofarsolar SOFAR 3300TL-G3 Inverter grid current is too high and hardware protection activated?
- K
  Kyle MontgomeryAug 31, 2025
  ID15-ID24 indicate internal faults within the inverter. Turn OFF the DC switch, wait for 5 minutes, and then turn it back ON. Check if the fault is rectified. If the issue persists, contact technical support.
C
Corey AndrewsSep 2, 2025
Why Sofarsolar SOFAR 3300TL-G3 Inverter derated because of high temperature?
- M
  Megan SimsSep 2, 2025
  The inverter may have derated because the ambient temperature of its installation position exceeds the upper limit. To solve this, improve ventilation to decrease the temperature around the inverter.
A
Alison MartinezSep 4, 2025
What to do if Sofarsolar SOFAR 3300TL-G3 Inverter input current is too high?
- L
  Lisa RobinsonSep 4, 2025
  Check if the input current exceeds the maximum input current of the inverter. Also, verify the input wiring. If both are correct and the issue persists, contact technical support.
M
Mandy FoxSep 7, 2025
Why Sofarsolar SOFAR 3300TL-G3 Inverter bus voltage is too low?
- L
  lrivasSep 7, 2025
  If the PV array configuration is correct (no ID05 fault), the bus voltage might be too low because the solar irradiance is insufficient. The inverter should automatically return to normal operation once the solar irradiance returns to a normal level.
K
Katherine JonesSep 9, 2025
What to do if Sofarsolar SOFAR 3300TL-G3 Inverter input current is not balanced?
- D
  Darlene JohnsonSep 9, 2025
  Check the input mode setting (parallel mode/independent mode) of the inverter. If it’s incorrect, change it according to the manual.

Summary

Basic Safety Information

Safety Instructions

Provides essential safety guidelines for installation, maintenance, and operation of the inverter.

Symbols and Signs

Product Characteristics

Function Description

Installation

Installation Process

Determining Installation Position

Criteria and requirements for selecting the optimal and safe mounting location for the inverter.

Installing the Inverter

Detailed steps for physically mounting the inverter onto its designated location.

Electrical Connections

Connecting PGND Cables

Procedure for properly connecting the ground (PGND) cables for safety and system integrity.

Connecting DC Input Power Cables

Detailed instructions for making secure and correct DC input power cable connections.

Connecting AC Output Power Cables

Steps for connecting the inverter's AC output to the power grid or distribution system.

RS485, CT, Logic Interface Connection

Guide to connecting communication interfaces like RS485, CT, and logic for data transmission.

WIFI;GPRS Module Installation

Communication Methods

Commissioning of Inverter

Safety Inspection Before Commissioning

Checks required before starting the inverter to ensure safe and proper operation.

Starting the Inverter

Procedure for powering on the inverter and verifying its operational status.

Shutting Down the Inverter

Safe steps to follow to power off the inverter and disconnect it from the grid.

Operation Interface

Operation and Display Panel

Main Interface Navigation

Software Update Procedure

Troubleshooting and Maintenance

Troubleshooting Guide

Provides methods for identifying and resolving common faults and error codes.

Maintenance Procedures

Sofarsolar SOFAR 3300TL-G3 Specifications

General

Model	SOFAR 3300TL-G3
Rated Output Power	3300 W
Maximum Power Output	3300 W
Max. DC Voltage	600 V
Number of MPPTs	2
Number of MPP Trackers	2
Rated AC Power	3300 W
Max. AC Power	3300 VA
Max. AC Current	15 A
Rated AC Voltage	230 V
AC Voltage Range	180V-280V
Output Voltage Range	180V-280V
Rated Frequency	50/60Hz
THDi	<3%
THD	<3%
Power Factor	>0.99
Max Efficiency	98.2%
Euro Efficiency	97.5%
MPPT Efficiency	99.9%
Protection Degree	IP65
Protection Level	IP65
Operating Temperature Range	-25°C to +60°C
Cooling Method	Natural Convection
Output Frequency Range	47 Hz - 52 Hz / 57 Hz - 62 Hz

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