Growatt MID 17-33KTL3-X User manual

Shenzhen Growatt New Energy Co., Ltd.
4-13/F, Building A, Sino-German (Europe) Industrial Park,
Hangcheng Ave, Bao’an District, Shenzhen, China
[phone]
www.ginverter.com
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E
W
[e-mail]
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Manual
Growatt New Energy
Installation
&
Operation Manual
GR-UM-249-A-06

Index
1 Notes on this manual .......................................................................... 1
1.1 Validity ......................................................................................................................... 1
1.2 Applicable personnel................................................................................................. 1
1.3 Symbols in this document ......................................................................................... 1
1.3.1 Markings in this document.................................................................................... 1
1.3.2 Markings on this product....................................................................................... 2
1.3.3 Glossary..................................................................................................................... 3
2 Safety ..................................................................................................... 4
2.1 Product description and features............................................................................ 4
2.1.1 Product description ................................................................................................ 4
2.1.2 Product features...................................................................................................... 4
2.2 Qualification of skilled person ................................................................................ 5
2.3 Safety instructions ..................................................................................................... 5
2.3.1 Assembly Warnings................................................................................................. 5
2.3.2 Electrical Connection Warnings........................................................................... 6
2.3.3 Operation Warnings............................................................................................... 7
3 Product overview................................................................................. 8
3.1 Appearance overview................................................................................................ 8
3.2 Dimensions .................................................................................................................. 9
3.3 Storage Environment................................................................................................. 9
4 Storage Environment........................................................................ 10
5 Installation.......................................................................................... 11
5.1 Basic installation requirements............................................................................. 11
5.2 Install the wall mount ............................................................................................. 14
5.3 Installing the inverter ............................................................................................. 14
6 Inverter wiring ................................................................................... 16
6.1 Security....................................................................................................................... 16
6.2 AC side wiring ........................................................................................................... 16
6.3 DC side wiring ........................................................................................................... 19
6.4 Connect the signal cable......................................................................................... 21
6.5 Grounding the inverter........................................................................................... 23
6.6 Active power control with smart meter , CT or ripple control
signal receiver ........................................................................................................... 24
6.7 Inverter demand response modes (DRMS)........................................................... 26
6.7.1 16-Pin socket pin assignment ............................................................................. 26

12 Start and shut down the inverter................................................. 39
12.1 Start the inverter.................................................................................................... 39
12.2 Shut down the inverter ......................................................................................... 39
13 Maintenance , Repair and Cleaning (Australia
model only) ....................................................................................... 40
14 Troubleshooting .............................................................................. 41
14.1 Error message ......................................................................................................... 41
14.2 System warning ...................................................................................................... 41
14.3 System error ............................................................................................................ 44
15 Manufacturer warranty ................................................................. 47
16 Decommissioning ............................................................................ 47
16.1 Dismantling the Inverter ...................................................................................... 47
16.2 Packing the Inverter .............................................................................................. 47
16.3 Storing the Inverter ............................................................................................... 47
16.4 Disposing of the Inverter...................................................................................... 47
17 EU Declaration of conformity ....................................................... 48
18 Specification..................................................................................... 49
18.1 Parameter ................................................................................................................ 49
18.2 DC connector and Isolator info(Australia model only)................................... 63
18.3 Torque ...................................................................................................................... 63
18.4 Annex ....................................................................................................................... 64
19 Compliance certificates.................................................................. 65
20 Contact .............................................................................................. 65
6.7.2 Method of asserting demand response modes ............................................... 26
6.7.3 Using the Power Control Interface for EU........................................................ 27
6.8 AFCI (Optional) ......................................................................................................... 28
6.8.1 Arc-Fault Circuit Interrupter (AFCI)................................................................... 28
6.8.2 Danger information ............................................................................................. 28
6.8.3 Operation step ...................................................................................................... 29
6.8.4 Earth Fault Alarm.................................................................................................. 29
7 Debugging .......................................................................................... 30
8 Working Mode.................................................................................... 30
8.1 Normal mode............................................................................................................. 30
8.2 Failure mode ............................................................................................................. 30
8.3 Shutdown mode........................................................................................................ 30
9 OLED display and touch button ...................................................... 31
9.1 Boot display............................................................................................................... 31
9.2 OLED display wake up ............................................................................................. 31
9.3 Function setting ....................................................................................................... 32
9.3.1 Select the protection voltage level ................................................................... 32
9.3.2 Enabling/Disabling Power Quality Response Modes(PQRM)
(Australia model only) ........................................................................................ 33
9.3.3 Check firmware version,Region,Country/Area and Power Quality
Response Modes (Australia model only) .......................................................... 33
9.3.4 Generation & Export limitation control and Power Sensor setting
(Australia model only) .......................................................................................... 35
9.3.5 Set language .......................................................................................................... 35
9.3.6 Set COM address.................................................................................................... 36
9.3.7 Set date and time .................................................................................................. 36
9.3.8 Set Payload Rate.................................................................................................... 37
9.3.9 Adjust the setpoints from the regional default values
(Australia model only) .......................................................................................... 37
10 Communication and Monitoring.................................................. 38
10.1 RS485 ........................................................................................................................ 38
10.2 USB-A........................................................................................................................ 38
11 Maintenance and Cleaning............................................................ 39
11.1 Checking Heat Dissipation ................................................................................... 39
11.2 Cleaning the Inverter ............................................................................................ 39
11.3 Checking the DC Disconnect ................................................................................ 39

12 Start and shut down the inverter................................................. 39
12.1 Start the inverter.................................................................................................... 39
12.2 Shut down the inverter ......................................................................................... 39
13 Maintenance , Repair and Cleaning (Australia
model only) ....................................................................................... 40
14 Troubleshooting .............................................................................. 41
14.1 Error message ......................................................................................................... 41
14.2 System warning ...................................................................................................... 41
14.3 System error ............................................................................................................ 44
15 Manufacturer warranty ................................................................. 47
16 Decommissioning ............................................................................ 47
16.1 Dismantling the Inverter ...................................................................................... 47
16.2 Packing the Inverter .............................................................................................. 47
16.3 Storing the Inverter ............................................................................................... 47
16.4 Disposing of the Inverter...................................................................................... 47
17 EU Declaration of conformity ....................................................... 48
18 Specification..................................................................................... 49
18.1 Parameter ................................................................................................................ 49
18.2 DC connector and Isolator info(Australia model only)................................... 63
18.3 Torque ...................................................................................................................... 63
18.4 Annex ....................................................................................................................... 64
19 Compliance certificates.................................................................. 65
20 Contact .............................................................................................. 65
6.7.2 Method of asserting demand response modes ............................................... 26
6.7.3 Using the Power Control Interface for EU........................................................ 27
6.8 AFCI (Optional) ......................................................................................................... 28
6.8.1 Arc-Fault Circuit Interrupter (AFCI)................................................................... 28
6.8.2 Danger information ............................................................................................. 28
6.8.3 Operation step ...................................................................................................... 29
6.8.4 Earth Fault Alarm.................................................................................................. 29
7 Debugging .......................................................................................... 30
8 Working Mode.................................................................................... 30
8.1 Normal mode............................................................................................................. 30
8.2 Failure mode ............................................................................................................. 30
8.3 Shutdown mode........................................................................................................ 30
9 OLED display and touch button ...................................................... 31
9.1 Boot display............................................................................................................... 31
9.2 OLED display wake up ............................................................................................. 31
9.3 Function setting ....................................................................................................... 32
9.3.1 Select the protection voltage level ................................................................... 32
9.3.2 Enabling/Disabling Power Quality Response Modes(PQRM)
(Australia model only) ........................................................................................ 33
9.3.3 Check firmware version,Region,Country/Area and Power Quality
Response Modes (Australia model only) .......................................................... 33
9.3.4 Generation & Export limitation control and Power Sensor setting
(Australia model only) .......................................................................................... 35
9.3.5 Set language .......................................................................................................... 35
9.3.6 Set COM address.................................................................................................... 36
9.3.7 Set date and time .................................................................................................. 36
9.3.8 Set Payload Rate.................................................................................................... 37
9.3.9 Adjust the setpoints from the regional default values
(Australia model only) .......................................................................................... 37
10 Communication and Monitoring.................................................. 38
10.1 RS485 ........................................................................................................................ 38
10.2 USB-A........................................................................................................................ 38
11 Maintenance and Cleaning............................................................ 39
11.1 Checking Heat Dissipation ................................................................................... 39
11.2 Cleaning the Inverter ............................................................................................ 39
11.3 Checking the DC Disconnect ................................................................................ 39

Symbol
Description
DANGER indicates a hazardous situation which, if not avoided, will
result in death or serious injury.
WARNING indicates a hazardous situation which, if not avoided,
could result in death or serious injury.
CAUTION indicates a hazardous situation which, if not avoided,
could result in minor or moderate injury.
This manual will provide detailed product information and installation instructions for
users of model TL3-X series photovoltaic inverter of Shenzhen Growatt new energy Co.,
Ltd. (hereinafter referred to as Growatt new energy). Please read this manual carefully
before using this product. Growatt new energy will not inform users of any changes to
this manual.
MID 17KTL3-X1 MID 17KTL3-X1-AU
MID 20KTL3-X1 MID 20KTL3-X1-AU
MID 22KTL3-X1 MID 22KTL3-X1-AU
MID 25KTL3-X1 MID 25KTL3-X1-AU
MID 30KTL3-X MID 30KTL3-X-AU
MID 33KTL3-X MID 33KTL3-X-AU
MID 36KTL3-X MID 36KTL3-X-AU
MID 40KTL3-X MID 40KTL3-X-AU
MID 10KTL3-XL1
MID 12KTL3-XL1
MID 15KTL3-XL
MID 17KTL3-XL
MID 20KTL3-XL
1.3 Symbols in this document
1.3.1 Markings in this document
Warnings indicate hazards to equipment or personnel. It draws your attention to a certain
procedure or practice. If the procedure or practice is not properly implemented or
followed, it may cause damage or destruction of part or all of the Growatt device and/or
other equipment connected to the Growatt device, or cause personal injury.
1.3.2 Markings on this product
NOTICE is used to address practices not related to personal injury.
Information that you must read and know to ensure optimal
operation of the system.
Symbol
Explanation
Danger: Electricity!
Danger:Flame!
Danger:Hot surface!
Operation after 5 minutes
Point of connection for grounding protection
Direct Current (DC)
Alternating Current (AC)
Read the manual
CE mark.
The inverter complies with the requirements of the applicable CE
guidelines.
The inverter must not be disposed of with the household waste.
The inverter must be installed by professional electricians who are certified by relevant
departments. By reading this manual in detail, the installer can install the MID TL3-X
series inverter correctly and quickly, and can carry out troubleshooting and
communication system construction.
If there are any problems during the installation process, the installer can log on to
www.growatt.com to leave a message on the website or call our 24-hour service
phone:[phone].
1.2 Applicable personnel
1 Notes on this manual
1.1 Validity
CAUTION
WARNING
DANGER
NOTICE
Information

Symbol
Description
DANGER indicates a hazardous situation which, if not avoided, will
result in death or serious injury.
WARNING indicates a hazardous situation which, if not avoided,
could result in death or serious injury.
CAUTION indicates a hazardous situation which, if not avoided,
could result in minor or moderate injury.
This manual will provide detailed product information and installation instructions for
users of model TL3-X series photovoltaic inverter of Shenzhen Growatt new energy Co.,
Ltd. (hereinafter referred to as Growatt new energy). Please read this manual carefully
before using this product. Growatt new energy will not inform users of any changes to
this manual.
MID 17KTL3-X1 MID 17KTL3-X1-AU
MID 20KTL3-X1 MID 20KTL3-X1-AU
MID 22KTL3-X1 MID 22KTL3-X1-AU
MID 25KTL3-X1 MID 25KTL3-X1-AU
MID 30KTL3-X MID 30KTL3-X-AU
MID 33KTL3-X MID 33KTL3-X-AU
MID 36KTL3-X MID 36KTL3-X-AU
MID 40KTL3-X MID 40KTL3-X-AU
MID 10KTL3-XL1
MID 12KTL3-XL1
MID 15KTL3-XL
MID 17KTL3-XL
MID 20KTL3-XL
1.3 Symbols in this document
1.3.1 Markings in this document
Warnings indicate hazards to equipment or personnel. It draws your attention to a certain
procedure or practice. If the procedure or practice is not properly implemented or
followed, it may cause damage or destruction of part or all of the Growatt device and/or
other equipment connected to the Growatt device, or cause personal injury.
1.3.2 Markings on this product
NOTICE is used to address practices not related to personal injury.
Information that you must read and know to ensure optimal
operation of the system.
Symbol
Explanation
Danger: Electricity!
Danger:Flame!
Danger:Hot surface!
Operation after 5 minutes
Point of connection for grounding protection
Direct Current (DC)
Alternating Current (AC)
Read the manual
CE mark.
The inverter complies with the requirements of the applicable CE
guidelines.
The inverter must not be disposed of with the household waste.
The inverter must be installed by professional electricians who are certified by relevant
departments. By reading this manual in detail, the installer can install the MID TL3-X
series inverter correctly and quickly, and can carry out troubleshooting and
communication system construction.
If there are any problems during the installation process, the installer can log on to
www.growatt.com to leave a message on the website or call our 24-hour service
phone:[phone].
1.2 Applicable personnel
1 Notes on this manual
1.1 Validity
CAUTION
WARNING
DANGER
NOTICE
Information

1.3.3 Glossary
AC
Abbreviation for "Alternating Current”
DC
Abbreviation for "Direct Current”
Energy
Energy is measured in Wh (watt hours), kWh (kilowatt hours) or MWh (megawatt hours).
The energy is the power calculated over time. For example, your inverter operates at a
constant power of 4600 W for half an hour and then at a constant power of 2300 W for
another half an hour, it has fed 3450Wh of energy into the power distribution grid within
that hour.
Power
Power is measured in W (watts), kW (kilowatts) or MW (megawatts). Power is an
instantaneous value. It displays the power your inverter is currently feeding into the
power distribution grid.
Power rate
Power rate is the radio of current power feeding into the power distribution grid and the
maximum power of the inverter that can feed into the power distribution grid.
Power factor
Power factor is the ratio of active power or watts to apparent power or volt amps. They
are identical only when current and voltage are in phase then the power factor is 1.0. The
power in an ac circuit is very seldom equal to the direct product of the volts and amperes.
In order to find the power of a single phase ac circuit the product of volts and amperes
must be multiplied by the power factor.
PV
Abbreviation for photovoltaic.
Wireless communication
The external wireless communication technology is a radio technology that allows the
inverter and other communication products to communicate with each other.The
wireless communication device is not standard. Require to order extral if you need it.
Safety 2
2.1 Product description and features
2.1.1 Product description
Growatt series photovoltaic inverters are used to convert the direct current generated by
photovoltaic panels into alternating current, and send it to the grid in a three-phase
manner. MID 17-33KTL3-X(1)(AU) series inverter can be connected to six strings(MID 10-
20KTL3-XL and MID 36-40KTL3-X(AU) can be connected to eight strings), has 3/4
maximum power tracking point trackers, so suitable for connection 3/4 Set of arrays of
different panels.
Position
Description
A
Solar panel
B
DC circuit breaker
C
Inverter
D
AC circuit breaker
E
Electric energy meter
F
Utility grid
As shown in Fig 2.1 above,a complete photovoltaic grid-connected system includes
photovoltaic modules,photovoltaic inverters,public grids and other components.In the
photovoltaic module system,the photovoltaic inverter is a key component.
Note:
If the selected photovoltaic module requires positive or negative grounding, please
contact Growatt for technical support before installation.
The characteristics of the inverter are as follows:
Ø3/4 independent maximum power point tracking
ØBuilt-in DC switch
ØCompatible with RS485/Wifi/GPRS/4G communication
Ø200V-1000V input voltag range MID-X(1)(AU), 200V-800V input voltag range
MID- XL(1)
ØThe maximum efficiency is as high as 98.8%
ØOLED+LED/WIFI+APP display
ØIntegrated with touch button
ØProtection grade IP66
ØThe weight is only 31kg
ØSimple installation
2.1.2 Product features
Fig 2.1
3 4
ABCD E F

1.3.3 Glossary
AC
Abbreviation for "Alternating Current”
DC
Abbreviation for "Direct Current”
Energy
Energy is measured in Wh (watt hours), kWh (kilowatt hours) or MWh (megawatt hours).
The energy is the power calculated over time. For example, your inverter operates at a
constant power of 4600 W for half an hour and then at a constant power of 2300 W for
another half an hour, it has fed 3450Wh of energy into the power distribution grid within
that hour.
Power
Power is measured in W (watts), kW (kilowatts) or MW (megawatts). Power is an
instantaneous value. It displays the power your inverter is currently feeding into the
power distribution grid.
Power rate
Power rate is the radio of current power feeding into the power distribution grid and the
maximum power of the inverter that can feed into the power distribution grid.
Power factor
Power factor is the ratio of active power or watts to apparent power or volt amps. They
are identical only when current and voltage are in phase then the power factor is 1.0. The
power in an ac circuit is very seldom equal to the direct product of the volts and amperes.
In order to find the power of a single phase ac circuit the product of volts and amperes
must be multiplied by the power factor.
PV
Abbreviation for photovoltaic.
Wireless communication
The external wireless communication technology is a radio technology that allows the
inverter and other communication products to communicate with each other.The
wireless communication device is not standard. Require to order extral if you need it.
Safety 2
2.1 Product description and features
2.1.1 Product description
Growatt series photovoltaic inverters are used to convert the direct current generated by
photovoltaic panels into alternating current, and send it to the grid in a three-phase
manner. MID 17-33KTL3-X(1)(AU) series inverter can be connected to six strings(MID 10-
20KTL3-XL and MID 36-40KTL3-X(AU) can be connected to eight strings), has 3/4
maximum power tracking point trackers, so suitable for connection 3/4 Set of arrays of
different panels.
Position
Description
A
Solar panel
B
DC circuit breaker
C
Inverter
D
AC circuit breaker
E
Electric energy meter
F
Utility grid
As shown in Fig 2.1 above,a complete photovoltaic grid-connected system includes
photovoltaic modules,photovoltaic inverters,public grids and other components.In the
photovoltaic module system,the photovoltaic inverter is a key component.
Note:
If the selected photovoltaic module requires positive or negative grounding, please
contact Growatt for technical support before installation.
The characteristics of the inverter are as follows:
Ø3/4 independent maximum power point tracking
ØBuilt-in DC switch
ØCompatible with RS485/Wifi/GPRS/4G communication
Ø200V-1000V input voltag range MID-X(1)(AU), 200V-800V input voltag range
MID- XL(1)
ØThe maximum efficiency is as high as 98.8%
ØOLED+LED/WIFI+APP display
ØIntegrated with touch button
ØProtection grade IP66
ØThe weight is only 31kg
ØSimple installation
2.1.2 Product features
Fig 2.1
3 4
ABCD E F

2.3 Safety instructions
1. Please read this manual carefully before installation. If you fail to install according to
the instructions in this manual, or ignore the warnings in the manual and the
equipment is damaged our company reserves the right not to guarantee the quality;,
2. All operations and wiring should be finished by the professional electrical or
mechanic-
al engineers;
3.During installation, except forthe wiring terminals,please do not move other parts
in side the chassis;
4. All electrical installations must comply with local electrical safety standards;
5. If the machine needs maintenance, please contact the local designated system in
stallation and maintenance personnel;
6. The use of this machine for grid-connected power generation requires permission
from the local power supply department;
7.When installing photovoltaic modules during the day, use opaque materials to cover
the photovoltaic modules, otherwise the voltage at the module terminals will be high in
the sun, which may cause personal danger.
2.2 Qualification of skilled person
This grid-tied inverter system operates only when properly connected to the AC
distribution network. Before connecting the MID TL3-X to the power distribution grid,
contact the local power distribution grid company. This connection must be made only
by qualified technical personnel to connect, and only after receiving appropriate
approvals, as required by the local authority having jurisdiction.
2.3.1 Assembly Warnings
2.3.2 Electrical Connection Warnings
ŸDo not open the inverter except the wire box by qualified persons.
ŸElectrical installation, repairs and conversions may only be carried out
by electrically qualified persons.
ŸForbid live line work.
ØDanger to life due to high voltages in the inverter
ØPersons with limited physical or mental abilities may only work with
the Growatt inverter following proper instruction and under
constant supervision. Must keep the Growatt inverter away from
children.
ŸThere is residual voltage in the inverter after the device shutdown. The
inverter need to take 20 minutes to discharge for safety.
ØThe components in the inverter are live. Touching live components
can result in serious injury or death.
ØMake all electrical connections (e.g. conductor termination, fuses,
PE connection, etc.) in accordance with prevailing regulations.
When using the inverter to provide the power, adhere to all
prevailing safety regulations to minimize risk of accidents.
ØSystems with inverters typically require additional control (e.g.,
switches, disconnects) or protective devices (e.g., fusing circuit
breakers) depending upon the prevailing safety rules.
56
ØBefore installation, please check the unit to ensure that there is no
transportation or handling damage, which may affect the insulation
integrity or safety clearances; otherwise, it may cause safety
hazards.
ØFollow the instructions in this manual to assemble the inverter. Note
that select the suitable mounting location and comply with the
specified requirements of cooling.
ØUnauthorized removal of necessary protections, improper use,
incorrect installation and operation may lead to serious safety and
shock hazards and/or equipment damage.
ØIn order to minimize the possibility of shock hazards due to
dangerous voltages, cover the entire solar array with dark colored
materials before connecting the array to any equipment.
ØGrounding the PV modules:the MID TL3-X is a transformerless
inverter. which means there is no galvanic separation. Do not
grounding the DC side of the MID TL3-X inverter. Only grounding
the mounting frame of the photovoltaic module. Otherwise there
will be an error message "PV ISO Low".
ØComply with the local requirements for grounding the PV
modules and the PV generator. GROWATT recommends connecting
the generator frame and other electrically conductive surfaces in a
manner which ensures continuous conduction with ground in order
to have optimal protection of the system and personnel.
WARNING
CAUTION
DANGER
WARNING

2.3 Safety instructions
1. Please read this manual carefully before installation. If you fail to install according to
the instructions in this manual, or ignore the warnings in the manual and the
equipment is damaged our company reserves the right not to guarantee the quality;,
2. All operations and wiring should be finished by the professional electrical or
mechanic-
al engineers;
3.During installation, except forthe wiring terminals,please do not move other parts
in side the chassis;
4. All electrical installations must comply with local electrical safety standards;
5. If the machine needs maintenance, please contact the local designated system in
stallation and maintenance personnel;
6. The use of this machine for grid-connected power generation requires permission
from the local power supply department;
7.When installing photovoltaic modules during the day, use opaque materials to cover
the photovoltaic modules, otherwise the voltage at the module terminals will be high in
the sun, which may cause personal danger.
2.2 Qualification of skilled person
This grid-tied inverter system operates only when properly connected to the AC
distribution network. Before connecting the MID TL3-X to the power distribution grid,
contact the local power distribution grid company. This connection must be made only
by qualified technical personnel to connect, and only after receiving appropriate
approvals, as required by the local authority having jurisdiction.
2.3.1 Assembly Warnings
2.3.2 Electrical Connection Warnings
ŸDo not open the inverter except the wire box by qualified persons.
ŸElectrical installation, repairs and conversions may only be carried out
by electrically qualified persons.
ŸForbid live line work.
ØDanger to life due to high voltages in the inverter
ØPersons with limited physical or mental abilities may only work with
the Growatt inverter following proper instruction and under
constant supervision. Must keep the Growatt inverter away from
children.
ŸThere is residual voltage in the inverter after the device shutdown. The
inverter need to take 20 minutes to discharge for safety.
ØThe components in the inverter are live. Touching live components
can result in serious injury or death.
ØMake all electrical connections (e.g. conductor termination, fuses,
PE connection, etc.) in accordance with prevailing regulations.
When using the inverter to provide the power, adhere to all
prevailing safety regulations to minimize risk of accidents.
ØSystems with inverters typically require additional control (e.g.,
switches, disconnects) or protective devices (e.g., fusing circuit
breakers) depending upon the prevailing safety rules.
56
ØBefore installation, please check the unit to ensure that there is no
transportation or handling damage, which may affect the insulation
integrity or safety clearances; otherwise, it may cause safety
hazards.
ØFollow the instructions in this manual to assemble the inverter. Note
that select the suitable mounting location and comply with the
specified requirements of cooling.
ØUnauthorized removal of necessary protections, improper use,
incorrect installation and operation may lead to serious safety and
shock hazards and/or equipment damage.
ØIn order to minimize the possibility of shock hazards due to
dangerous voltages, cover the entire solar array with dark colored
materials before connecting the array to any equipment.
ØGrounding the PV modules:the MID TL3-X is a transformerless
inverter. which means there is no galvanic separation. Do not
grounding the DC side of the MID TL3-X inverter. Only grounding
the mounting frame of the photovoltaic module. Otherwise there
will be an error message "PV ISO Low".
ØComply with the local requirements for grounding the PV
modules and the PV generator. GROWATT recommends connecting
the generator frame and other electrically conductive surfaces in a
manner which ensures continuous conduction with ground in order
to have optimal protection of the system and personnel.
WARNING
CAUTION
DANGER
WARNING

8
7
2.3.3 Operation Warnings
ØEnsure all connectors are sealed and secure during operation.
ØAlthough designed to meet all safety requirements, some parts
and surfaces of inverter are still hot during operation. To reduce
the risk of injury, do not touch the heat sink at the back of the PV-
inverter or nearby surfaces while inverter is operating.
ØIncorrect sizing of the PV panels may result in voltages being
present which could destroy the inverter. The inverter display will
read the error message “PV Voltage High!”
ØAll operations regarding transport, installation and start-up,
including maintenance must be operated by qualified, trained
personnel and in compliance with all prevailing codes and
regulations.
ØWhen the inverter is disconnected from the grid, please be careful
because some components can retain enough charge to create a
shock hazard. In order to minimize the occurrence of this
situation,observe all corresponding safety symbols and marks in this
manual.
ØUnder special circumstances, the inverter may be subject to
electromagnetic interference from surrounding equipment. At this
time, the user is obliged to take correct measures to reduce the
interference from surrounding equipment to the inverter.
ØDo not stay close to the inverter less than 20cm at any time.
Product overview 3
3.1 Appearance overview
The appearance instructions are as follows:
No.
Name
No.
Name
A
DC switch
F
PE terminal
B
PV terminal
G
Fan
C
USB port
H
OLED indicator
D
RS485 port
I
LCD screen
E
AC terminal
J
Touch button
The label description on the inverter:
LOGO
Description
Description
Tap logo
Touch button: We can switch the LED display and
set parameters by touching.
Inverter status
identification
Indicate the current running status of the inverter
Red: fault
Green: normal operation
Flashing red light: warning
Flashing green: update program
Fig 3.1
Caution:MID17-40KTL3-X(1)-AU without DC switch.
WARNING
CAUTION

8
7
2.3.3 Operation Warnings
ØEnsure all connectors are sealed and secure during operation.
ØAlthough designed to meet all safety requirements, some parts
and surfaces of inverter are still hot during operation. To reduce
the risk of injury, do not touch the heat sink at the back of the PV-
inverter or nearby surfaces while inverter is operating.
ØIncorrect sizing of the PV panels may result in voltages being
present which could destroy the inverter. The inverter display will
read the error message “PV Voltage High!”
ØAll operations regarding transport, installation and start-up,
including maintenance must be operated by qualified, trained
personnel and in compliance with all prevailing codes and
regulations.
ØWhen the inverter is disconnected from the grid, please be careful
because some components can retain enough charge to create a
shock hazard. In order to minimize the occurrence of this
situation,observe all corresponding safety symbols and marks in this
manual.
ØUnder special circumstances, the inverter may be subject to
electromagnetic interference from surrounding equipment. At this
time, the user is obliged to take correct measures to reduce the
interference from surrounding equipment to the inverter.
ØDo not stay close to the inverter less than 20cm at any time.
Product overview 3
3.1 Appearance overview
The appearance instructions are as follows:
No.
Name
No.
Name
A
DC switch
F
PE terminal
B
PV terminal
G
Fan
C
USB port
H
OLED indicator
D
RS485 port
I
LCD screen
E
AC terminal
J
Touch button
The label description on the inverter:
LOGO
Description
Description
Tap logo
Touch button: We can switch the LED display and
set parameters by touching.
Inverter status
identification
Indicate the current running status of the inverter
Red: fault
Green: normal operation
Flashing red light: warning
Flashing green: update program
Fig 3.1
Caution:MID17-40KTL3-X(1)-AU without DC switch.
WARNING
CAUTION

10
9
3.2 Dimensions
Size and weight:
Model
Height (H)
Width (W)
Depth (D)
Weight
MID 17-33KTL3-
X(1)(AU)
580mm
430mm
230mm
30kg
MID 10-20KTL3-XL/
MID 36-40KTL3-X(AU)
580mm
430mm
230mm
31kg
If you want to store the inverter in a warehouse, you must choose a suitable location for
the inverter.
ØThe equipment must be stored in its original packaging.
ØThe storage temperature should always be between -25℃ and +60℃, and the storage
relative humidity should be less than 90%.
ØIf you need to store a batch of inverters, the maximum number of layers of the original
carton is 4.
3.3 Storage Environment
Unpacking inspection 4
Before opening the inverter package,please check whether the outer package is
damaged.After unpacking,please check whether the appearance of the inverter is
damaged or lack of accessories.If there is damage or missing parts,please contact the
dealer.
No.
Description
Qty.
A
Inverter
1
B
Wall mount
1
C
Quick Installation Manual
1
D
AC waterproof cover(just for Vietnam models)
1
E
Datalogger
1
F
COM port signal connector
1
G
Expansion screw
4
H
Plastic expansion tube
4
I
PV terminal shell
6/6(8/8)
J
PV terminal core
6/6(8/8)
K
Security screw
1
L
COM port removal tool
1
M
PV terminal removal tool
1
N
14-6 O terminal
6
O
Fixed AC side water proof cover M4*10 screw
4
Fig 4.1
Fig 3.2
Note:
PV+/ PV-terminal and PV+/ PV-metal terminal have 6/6PCS for MID 17-33KTL3-X(1)(AU);
PV+/ PV-terminal and PV+/ PV-metal terminal have 8/8PCS for MID 10-20KTL3-XL and
MID 36-40KTL3-X(AU).
H
W
D

10
9
3.2 Dimensions
Size and weight:
Model
Height (H)
Width (W)
Depth (D)
Weight
MID 17-33KTL3-
X(1)(AU)
580mm
430mm
230mm
30kg
MID 10-20KTL3-XL/
MID 36-40KTL3-X(AU)
580mm
430mm
230mm
31kg
If you want to store the inverter in a warehouse, you must choose a suitable location for
the inverter.
ØThe equipment must be stored in its original packaging.
ØThe storage temperature should always be between -25℃ and +60℃, and the storage
relative humidity should be less than 90%.
ØIf you need to store a batch of inverters, the maximum number of layers of the original
carton is 4.
3.3 Storage Environment
Unpacking inspection 4
Before opening the inverter package,please check whether the outer package is
damaged.After unpacking,please check whether the appearance of the inverter is
damaged or lack of accessories.If there is damage or missing parts,please contact the
dealer.
No.
Description
Qty.
A
Inverter
1
B
Wall mount
1
C
Quick Installation Manual
1
D
AC waterproof cover(just for Vietnam models)
1
E
Datalogger
1
F
COM port signal connector
1
G
Expansion screw
4
H
Plastic expansion tube
4
I
PV terminal shell
6/6(8/8)
J
PV terminal core
6/6(8/8)
K
Security screw
1
L
COM port removal tool
1
M
PV terminal removal tool
1
N
14-6 O terminal
6
O
Fixed AC side water proof cover M4*10 screw
4
Fig 4.1
Fig 3.2
Note:
PV+/ PV-terminal and PV+/ PV-metal terminal have 6/6PCS for MID 17-33KTL3-X(1)(AU);
PV+/ PV-terminal and PV+/ PV-metal terminal have 8/8PCS for MID 10-20KTL3-XL and
MID 36-40KTL3-X(AU).
H
W
D

11 12
5 Installation
5.1 Basic installation requirements
ØThe wall on which the inverter is mounted must be sturdy and can withstand the
weight of the inverter for a long time (refer to the specifications in Chapter 12 for the
weight of the inverter);
ØThe installation location must match the size of the inverter;
ØDo not install the inverter on a building constructed of flammable or heat-resistant
materials;
ØInstall the inverter in an eye-view orientation to facilitate inspection of the OLED
display and maintenance work;
ØThe machine's degree of protection is IP66 and can be installed indoors and outdoors;
ØIt is not recommended to expose the inverter directly to strong sunlight to prevent
overheating and cause power derating;
ØThe humidity of the installation environment should be between 0 and 90%;
ØThe ambient temperature around the inverter should be between -25 ° C ~ 60 ° C;
ØThe inverter can be mounted on a plane that is tilted vertically or backwards.
ØPlease refer to the following figure:
ØIn order to ensure the normal operation of the machine and the convenience of
personnel operation, please pay attention to provide sufficient clearance for the inverter.
Please refer to the figure below:
Direction
Minimum clearance (mm)
Above
300
Under
500
Both sides
500
Forward
300
Fig 5.1 Installation diagram
ØDo not install the inverter on the TV antenna, other antennas or antenna cables;
ØDo not install the inverter in the living area;
ØDo not install the inverter where children can reach it;
ØThe inverter should be installed in a sheltered and protected location such as cool,
rain-proof;
Fig 5.2 Installation dimensions for one inverter
Fig 5.3 Installation dimensions for multiple inverters
≥300mm
≥500mm
≥500mm
≥500mm
Roof ＞1200mm
Ground
＞300mm
＞300mm
＞500mm
15°
90°

11 12
5 Installation
5.1 Basic installation requirements
ØThe wall on which the inverter is mounted must be sturdy and can withstand the
weight of the inverter for a long time (refer to the specifications in Chapter 12 for the
weight of the inverter);
ØThe installation location must match the size of the inverter;
ØDo not install the inverter on a building constructed of flammable or heat-resistant
materials;
ØInstall the inverter in an eye-view orientation to facilitate inspection of the OLED
display and maintenance work;
ØThe machine's degree of protection is IP66 and can be installed indoors and outdoors;
ØIt is not recommended to expose the inverter directly to strong sunlight to prevent
overheating and cause power derating;
ØThe humidity of the installation environment should be between 0 and 90%;
ØThe ambient temperature around the inverter should be between -25 ° C ~ 60 ° C;
ØThe inverter can be mounted on a plane that is tilted vertically or backwards.
ØPlease refer to the following figure:
ØIn order to ensure the normal operation of the machine and the convenience of
personnel operation, please pay attention to provide sufficient clearance for the inverter.
Please refer to the figure below:
Direction
Minimum clearance (mm)
Above
300
Under
500
Both sides
500
Forward
300
Fig 5.1 Installation diagram
ØDo not install the inverter on the TV antenna, other antennas or antenna cables;
ØDo not install the inverter in the living area;
ØDo not install the inverter where children can reach it;
ØThe inverter should be installed in a sheltered and protected location such as cool,
rain-proof;
Fig 5.2 Installation dimensions for one inverter
Fig 5.3 Installation dimensions for multiple inverters
≥300mm
≥500mm
≥500mm
≥500mm
Roof ＞1200mm
Ground
＞300mm
＞300mm
＞500mm
15°
90°

14
13
Fig 5.4 Installation Environment
ØMake sure that the inverter is installed in a suitable place and is not allowed to be
installed in a closed box;
Fig 5.5 Closed box
ØIn order to reduce the inverter load and extend the life of the inverter due to direct
sunlight, we recommend installing a awning. The distance between the awning and the
inverter is as follows:
5.2 Install the wall mount
To prevent electric shock or other damage, be sure to check the wall
for power or other piping before opening the hole in the wall.
Secure the wall mount as shown, do not let the screws flush with the wall, instead expose
2 to 4 mm.
5.3 Installing the inverter
Note: Before installing the inverter, you must first make sure that the wall mount is firmly
fixed to the wall.
steps:
1. Hang the inverter on the wall mount and keep the inverter balanced when hanging.
2. To ensure that the inverter can be securely attached to the wall, secure the side of the
inverter with the M5 safety screw on the left.
Fig 5.6 Sunshade
Fig 5.7 Specifications of wall mount
Fig 5.8 Schematic diagram of wall mount installation
keep the bracket
installed horizontally
＞1000mm
＞300mm
＞300mm
＞200mm
unit: mm
240
240 50
24
DANGER

14
13
Fig 5.4 Installation Environment
ØMake sure that the inverter is installed in a suitable place and is not allowed to be
installed in a closed box;
Fig 5.5 Closed box
ØIn order to reduce the inverter load and extend the life of the inverter due to direct
sunlight, we recommend installing a awning. The distance between the awning and the
inverter is as follows:
5.2 Install the wall mount
To prevent electric shock or other damage, be sure to check the wall
for power or other piping before opening the hole in the wall.
Secure the wall mount as shown, do not let the screws flush with the wall, instead expose
2 to 4 mm.
5.3 Installing the inverter
Note: Before installing the inverter, you must first make sure that the wall mount is firmly
fixed to the wall.
steps:
1. Hang the inverter on the wall mount and keep the inverter balanced when hanging.
2. To ensure that the inverter can be securely attached to the wall, secure the side of the
inverter with the M5 safety screw on the left.
Fig 5.6 Sunshade
Fig 5.7 Specifications of wall mount
Fig 5.8 Schematic diagram of wall mount installation
keep the bracket
installed horizontally
＞1000mm
＞300mm
＞300mm
＞200mm
unit: mm
240
240 50
24
DANGER

16
15
Inverter wiring 6
6.1 Security
There may be a high voltage in the conductive part of the inverter,
which may cause electric shock.Therefore, when installing the
inverter,make sure that the AC and DC sides of the inverter are
powered off.
Static electricity may damage the electronic components of the
inverter.Anti-static measures should be taken during the
replacement or installation of the inverter.
Moisture and dust penetration can damage the inverter
ØMake sure that the waterproof cable gland is firmly tightened.
ØIf the cable connector is not installed correctly, the inverter may
be damaged due to the penetration of moisture and dust. All
warranty claims are void
Note
6.2 AC side wiring
Before making electrical connections, please make sure that the
DC switch of the inverter is in the "OFF" state and disconnect the
AC side MCB, otherwise the high voltage of the inverter may
cause death.
ØEach inverter must be installed with an AC circuit breaker
independently, and it is forbidden to share multiple inverters.
ØIt is forbidden to use single-core wire at the output terminal of
the inverter.
ØIt is forbidden to use aluminum wires as output cables.
ØPlease ensure that the output cable is well connected before
turning on the inverter.Ignoring the above warning may damage
the machine or cause other losses.In this case, the company
reserves the right not to carry out the warranty and bear any
responsibility and related expenses.
Moisture and dust penetration can damage the inverter.
ØMake sure the cable connector is securely tightened.
ØIf the cable connector is not installed correctly, the inverter may
be damaged by moisture and dust. All warranty claims are invalid.
Residual current protection device (RCMU)
Because the inverter itself has a high-precision residual current detection device,it is not
recommended to install a leakage protection switch in the system.If for some special
reason,it must be installed between the inverter output and the grid.Please install a type
B leakage protection switch above 300mA.When multiple leakage protection switches
are installed in the system,it is forbidden to share the neutral line,otherwise the leakage
protection function may be triggered by mistake and cause the switch to trip.
Fig 5.9 Schematic diagram of inverter wall mounting
DANGER
WARNING
Note
DANGER
WARNING

16
15
Inverter wiring 6
6.1 Security
There may be a high voltage in the conductive part of the inverter,
which may cause electric shock.Therefore, when installing the
inverter,make sure that the AC and DC sides of the inverter are
powered off.
Static electricity may damage the electronic components of the
inverter.Anti-static measures should be taken during the
replacement or installation of the inverter.
Moisture and dust penetration can damage the inverter
ØMake sure that the waterproof cable gland is firmly tightened.
ØIf the cable connector is not installed correctly, the inverter may
be damaged due to the penetration of moisture and dust. All
warranty claims are void
Note
6.2 AC side wiring
Before making electrical connections, please make sure that the
DC switch of the inverter is in the "OFF" state and disconnect the
AC side MCB, otherwise the high voltage of the inverter may
cause death.
ØEach inverter must be installed with an AC circuit breaker
independently, and it is forbidden to share multiple inverters.
ØIt is forbidden to use single-core wire at the output terminal of
the inverter.
ØIt is forbidden to use aluminum wires as output cables.
ØPlease ensure that the output cable is well connected before
turning on the inverter.Ignoring the above warning may damage
the machine or cause other losses.In this case, the company
reserves the right not to carry out the warranty and bear any
responsibility and related expenses.
Moisture and dust penetration can damage the inverter.
ØMake sure the cable connector is securely tightened.
ØIf the cable connector is not installed correctly, the inverter may
be damaged by moisture and dust. All warranty claims are invalid.
Residual current protection device (RCMU)
Because the inverter itself has a high-precision residual current detection device,it is not
recommended to install a leakage protection switch in the system.If for some special
reason,it must be installed between the inverter output and the grid.Please install a type
B leakage protection switch above 300mA.When multiple leakage protection switches
are installed in the system,it is forbidden to share the neutral line,otherwise the leakage
protection function may be triggered by mistake and cause the switch to trip.
Fig 5.9 Schematic diagram of inverter wall mounting
DANGER
WARNING
Note
DANGER
WARNING