Photovoltaic Grid-Connected Inverter SG4KTL-S

Ref Price:
Loading Port:
China Main Port
Payment Terms:
TT or LC
Min Order Qty:
50000 unit
Supply Capability:
3000000 unit/month

OKorder Service Pledge

Quality Product

Order On-line Tracking

Timely Delivery

OKorder Service Pledge

Credit Rating

Credit Services

Credit Purchasing

Share to:

Product Description:

1.  Structure of  Photovoltaic Grid-Connected Inverter SG4KTL-S Description

A solar inverter, or PV inverter, or Solar converter, converts the variable direct current (DC) output of a photovoltaic (PV) solar panel into

autility frequency alternating current (AC) that can be fed into a commercial electrical grid or used by a local, off-grid electrical network.

 It is acritical BOS–component in a photovoltaic system, allowing the use of ordinary AC-powered equipment. Solar inverters have

special functions adapted for use with photovoltaic arrays, including maximum power point tracking and anti-islanding protection.

Suitable for 50Hz/60Hz grid, could be used in Asia, Africa and Europe. Available for hand installation, no need for lifting machinery




2.  Main Features of the Photovoltaic Grid-Connected Inverter SG4KTL-S

• Max. input voltage 600V, compatible with different PV panel and string design

• Only 9kg, easy for handling and installation

• Max. Efficiency at 98.0%


• Ultra-quiet, suitable for residential use

• Access to home WiFi system, easy to enjoy the online monitoring

• Wireless communication design, intelligent mobile phone local and remote monitoring


• Product certification: TÜV, CE, AS4777, AS/NZS 3100, VDE AR N 4105

• Manufacturer certification: ISO 9001, ISO 14001, OHSAS 18000



3.   Photovoltaic Grid-Connected Inverter SG4KTL-S Images






4.  Photovoltaic Grid-Connected Inverter SG4KTL-S Specification


Input Side Data

Max. PV input power4300W
Max. PV input voltage600V
Startup voltage150V
Nominal input voltage345V
MPP voltage range125~560V
MPP voltage range for nominal power240~520V
No. of MPPTs1
Max. number of PV strings per MPPT2
Max. PV input current18A
Max. current for input connector20A 
Output Side Data 
Nominal AC output power4000W
Max AC output power(PF=1)4210W
Max. AC output apparent power4210VA
Max. AC output current18.3A
Nominal AC voltage230Vac (Single phase)
AC voltage range180~276Vac (May vary as per corresponding country’s grid standard)
Nominal grid frequency50Hz/60Hz
Grid frequency range45~55Hz/55~65Hz (May vary as per corresponding country’s grid standard)
THD< 3 % (Nominal power)
DC current injection<0.5 %In
Power factor>0.99@default value at nominal power, (adj. 0.8 overexited~0.8 underexcited)
Anti-islanding protectionYES
DC reverse connection protectionYES
AC short circuit protectionYES
Leakage current protectionYES
DC switchOptional
DC fuseNO
Overvoltage protectionVaristors 
System Data 
Max. efficiency98.00%
Max. European efficiency97.50%
Isolation methodTransformerless
Ingress protection ratingIP65
Night power consumption<1W
Operating ambient temperature range-25~60℃ (>45℃ derating)
Allowable relative humidity range0~100%
Cooling methodNatural cooling
Max. operating altitude4000m (>2000m derating) 
DisplayLED, LCD(optional)
CommunicationWiFi (optional)
DC connection typeMC4
AC connection typePlug and play connector
VDE-AR-N-4105, VDE0126-1-1,CE,G83/2,C10/11,EN50438,CGC
Mechanical Data 
Dimensions(W×H×D)300*370*125 mm
Mounting methodWall bracket


5.  FAQ of  Photovoltaic Grid-Connected Inverter SG4KTL-S

Q1:Which payment terms can you accept?

A1:T/T,L/C,Moneygram,Paypal are available for us.


Q2:Can we visit your factory?

A2:Sure,welcome at any time,seeing is believing.


Send a message to us:

Remaining: 4000 characters

- Self introduction

- Required specifications

- Inquire about price/MOQ

Q:What are the methods of photovoltaic grid-connected inverter control
Sine wave output inverter control integrated circuits, sine wave output of the inverter, the control circuit can be used microprocessor control, such as INTEL company produced 80C196MC, Motorola produced MP16 and MI-CROCHIP company PIC16C73 and so on, these single-chip microcomputer has a multi-channel PWM generator,
Q:What is the difference between a PV inverter and a solar inverter?
The main component of the inverter is the three-phase bridge converter. The main purpose of the grid-connected inverter is to change the power to DC and change the AC power. The main purpose is to improve the power quality (because the wind power generation is very large
Q:Is the PV inverter a current source or a voltage source?
Photovoltaic inverter, also known as power regulator, according to the inverter in the use of photovoltaic power generation system can be divided into two kinds of independent power supply and grid.
Q:What is the difference between a grid-connected inverter and an off-grid inverter? What are the advantages of a hybrid inverter?
Off-grid inverter is equivalent to their own to establish an independent small power grid, mainly to control their own voltage, is a voltage source.
Q:PV grid-connected inverter can directly load it?
TL5001 operating voltage range of 3.6 ~ 40V, its internal with an error amplifier, a regulator, oscillator, a dead zone control PWM generator, low voltage protection circuit and short circuit protection circuit
Q:Solar grid inverter does not merge into the grid, direct access to the load to the load power supply?
Inverter is the DC power (battery, battery) into alternating current (usually 220V, 50Hz sine wave). It consists of inverter bridge, control logic and filter circuit
Q:What is the PV inverter starting voltage
Photovoltaic inverter, also known as power regulator, according to the inverter in the use of photovoltaic power generation system can be divided into two kinds of independent power supply and grid. According to the waveform modulation method can be divided into square wave inverter, stepped wave inverter, sine wave inverter and modular three-phase inverter. For the inverter for the grid system, depending on whether the transformer can be divided into transformer-type inverter and transformer-free inverter.
Q:Photovoltaic grid-connected inverter without DC emc how will happen
Solar photovoltaic power generation technology is the use of solar cells, the photovoltaic effect of semiconductor materials, solar radiation can be directly converted into a new type of power generation system, solar energy is a radiant energy, solar power means --- to direct conversion of sunlight Into electricity,
Q:After the PV inverter, how to achieve the same period before the network?
Grid simulator: analog power grid, normal and abnormal conditions, overvoltage, undervoltage, over frequency, under frequency, sudden power failure, etc.
Q:Photovoltaic grid-connected inverter problem
But Baidu Encyclopedia clearly pointed out: the zero line is the secondary side of the transformer leads the neutral point of the line, and the phase line constitutes a circuit for power supply equipment.

1. Manufacturer Overview

Year Established
Annual Output Value
Main Markets
Company Certifications

2. Manufacturer Certificates

a) Certification Name  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port
Export Percentage
No.of Employees in Trade Department
Language Spoken:
b)Factory Information  
Factory Size:
No. of Production Lines
Contract Manufacturing
Product Price Range