1. Turn off the DC switch and then disconnect the
AC circuit breaker. Prevent them from inadvertently
reconnecting during inverter installation.
2. Secure the backplate to the wall with the provided
mounting kits. Hang the inverter to the two recesses
of the backplate.To protect the inverter from theft,
you can lock it to the backplate with a padlock.
3. Allow sufficient room around the inverter to
enable unobstructed air flow during installation.
For multiple inverters installation, positionthe
inverters in staggered arrangement.
2
Mounting Inverter onto the Wall
This guide provides a general instruction of the installation procedure of
SG3KTL-M/SG4KTL-M/SG4K6TL-M/SG5KTL-M.
1
Installation Preparation
Select appropriate cables before securing the inverter to the wall.
SG3KTL-M/SG4KTL-M/SG4K6TL-M/SG5KTL-M
Quick Installation Guide
EN
Original Version
EN-1
EN-2
EN-3
In no case shall users open the enclosure . Loss of any or all warranty rights may follow if otherwise.
In no case shall this guide substitute for the user manual or related notes on the device.
Make sure to read over, fully understand and strictly follow the detailed instructions of the user manual and other
related regulations before installing the equipment.
Any violation could result in personal death or injury or device damage.
DC terminal
RS485 Com. terminal
PE terminals
AC terminals
SG3KTL-M
SG4KTL-M
SG4K6TL-M
SG5KTL-M
SG3K/4K/4K6/5KTL-M
SG3K/4K/4K6/5KTL-M
SG3K/4K/4K6/5KTL-M
4…6
4…6
4…6
4…6
2.5...6
Shielding Ethernet cable or shielding twist-pair type cable
-
4
4
6
6
-
6
10…14
10…14
10…14
10…14
5…8
-
10
10
10
10
-
-
Recommended
Value
Range
Recommended
Value
Range
Terminal Type
Cross-sectional Area(mm
2
)
Outer cable diameter(mm)
* Image here is for reference only. Actual product you
receive may differ.
Install backplate
Hang inverter
Mounting ear
Backplate
• The theft protection is optional.
• You shall lock the inverter to the mounted eye plate of
the backplate with a suitable (stainless, secured shackle
and lock cylinder) padlock.
• You must ensure that the key is available at all times for
possible service purposes.
5. The inverter is equipped with second protective earth terminal as specified in EN 50178. Users may
choose to connect PE connection.
The PV input configuration mode should be consistent with the setting in the LCD.
4. Plug the AC connector into AC terminal placed
underneath the inverter. Connect the “PE” cable
to the grounding electrode and connect the
phase cable and “N” cable to the AC circuit
breaker as shown on the right.
6. Check the cable polarities of PV input before PV input connection. Connect the DC plug-in connectors
to corresponding DC terminals. Connect other PV strings following the same procedures if necessary.
Unused DC terminals should be sealed.
The inverter can work on independent mode and parallel mode, you can connect PV input as shown
(In parallel mode, one pair of DC terminals in DC1 input and DC2 input must be short-circuited by
Y-type cable connector terminal.).
Inverter
AC Grounding Electrode
L
N
L
N
AC Circuit Breaker
PE
PV Arrays 1
PV Arrays 2
PV Arrays n
Inverter 1
Inverter 2
Inverter n
Grounding Electrode
Copper Bus Bar
Mounting Frame of PV arrays
Grounding of PV Power System
Grounding of Inverter AC Side
DC1
DC2
DC1
DC2
+
+
-
-
Independent Mode
Parallel Mode
DC1
DC2
DC1
DC2
+
-
+
+
-
-
SG3KTL-M
SG4K/4K6/5KTL-M
SG4K/4K6/5KTL-M
SG3KTL-M
PV Input Specifications:
RS485/WiFi RS485
AC
ON
DC1
OFF
DC2
AC
terminal
DC switch
(Optional)
DC input
area
RS485 or WiFi
communication
terminal
RS485
communication
terminal
SG3KTL-M
SG4KTL-M
SG4K6TL-M
SG5KTL-M
DC1
DC2
DC1
DC2
DC1
DC2
DC1
DC2
3200W
3200W
3000W
3500W
3000W
3500W
3000W
3500W
12A
12A
12A
20A
12A
20A
12A
20A
3200W
4300W
4950W
5400W
550V
550V
550V
550V
Type
Area
DC Power Limit
for Each Input
Total DC Input
Power Limit
Open-circuit Voltage
Limit for Each Input
Short-circuit Current
Limit for Each Input
24A
32A
32A
32A
*The connection parts are not included in the delivery scope.
A
B
C
D
E
Item Description Remark
Screw
Lock washer
Washer
Cable socket
Yellow-green cable
M4×12mm
-
-
-
6mm
2
(9AWG)
