SOLAX 8K-G2 Solar Inverter Instruction Manual

SOLAX 8K-G2 Solar Inverter

Product Information

Specifications

• Model Variants: X3-PRO-8K-G2, X3-PRO-10K-G2, X3-PRO-12K-G2, X3-PRO-15K-G2, X3-PRO-17K-G2, X3-PRO-20K-G2, X3-PRO-25K-G2, X3-PRO-30K-G2, X3-PRO-10KW-G2, X3-PRO-10K-G2-LV, X3-PRO-12K-G2-LV, X3-PRO-15K-G2-LV
• Manufacturer: SolaX
• Additional Features: CE mark of conformity, TUV certification, RCM mark of conformity, BIS mark of conformity, UKCA mark of conformity

FAQ

• Q: Can I use any type of tools for installation?
  • A: It is recommended to use insulated tools during installation to prevent electrical hazards.
• Q: How often should I perform maintenance on the inverter?
  • A: Follow the maintenance schedule provided in the user manual. Regular inspections are recommended to ensure proper functionality.

Safety

General Notice

1. Contents may be periodically updated or revised. SolaX reserves the right to make improvements or changes in the product(s) and the program(s) described in this manual without the prior notice.
2. The installation, maintenance and grid-related setting can only be performed by qualified personnel who:
   • Are licensed and/or satisfy state and local jurisdiction regulations;
   • Have good knowledge of this manual and other related documents.
3. Before installing the device, carefully read, fully understand and strictly follow the detailed instruction of the user manual and other related regulations. SolaX shall not be liable for any consequences caused by the violation of the storage, transportation, installation, and operation regulations specified in this document and the user manual.
4. Use insulated tools when installing the device. Individual protective tools must be worn during installation, electrical connection and maintenance.
5. Please visit the website www.solaxpower.com of SolaX for more information.

Descriptions of Labels

Note

• The table is only used for the description of symbols which may be used on the inverter. Please be subject to the actual symbols on the device.

DANGER: Lethal danger from electrical shock due to the inverter

• Only operate the inverter when it is technically faultless. Otherwise, electric shock or fire may occur.
• Do not open the enclosure in any case without authorization from SolaX.
• Unauthorized opening will void the warranty and cause lethal danger or serious injury due to electric shock.

DANGER: Lethal danger from electrical shock due to the PV

• When exposed to sunlight, high DC voltage will be generated by PV modules. Death or lethal injuries will occur due to electric shock.
• Never touch the positive or negative pole of PV connecting device. Touching both of them at the same time is prohibited as well.
• Do not ground the positive or negative pole of the PV modules.
• Only qualified personnel can perform the wiring of the PV panels.

WARNING: Risk of personnel injury or inverter damage

• During operation, do not touch any parts other than DC switch and LCD panel.
• Never connect or disconnect the AC and DC connectors when the inverter is running.
• Turn off the AC and DC power and disconnect them from the inverter, wait for 5 minutes to fully discharge the voltage before attempting any maintenance, cleaning or working on any circuits connected.
• Make sure that the input DC voltage ≤ Maximum DC input voltage of the inverter. Overvoltage may cause permanent damage to the inverter, which is NOT covered by the warranty.

CAUTION!

• Keep children away from the inverter.
• Pay attention to the weight of the inverter. Personal injuries may be caused if not handled properly.

NOTICE!

• If an external RCD is required by local regulations, check which type of RCD is required for relevant electric codes. It is recommended to use a Type-A RCD with the value of 300 mA.
• All the product labels and nameplate on the inverter shall be maintained clearly visible.

Packing List

• *Positive × 4 and Negative × 4 for inverters with two inputs of MPPT, Positive × 6 and Negative × 6 for inverters with three inputs of MPPT
• ** Refer to the actual delivery for the optional accessories.

Installation Information

Installation Site

Installation Carrier

Installation Angle

Installation Space

Installation Tools

Additionally Required Materials

2

|

PV cable

| Dedicated PV wire withstand voltage 1100 V (8 kW~30 kW) / 800V (10 kW-LV~15 kW-LV)|

4 mm²

3| AC cable| Five-core copper wire| Refer to below tables

4

|

Communication cable

| Network cable CAT5| 0.2 mm²
Two-core cable for RS485 connection| 0.5-1.5 mm²

Outer diameter: 5-6.7 mm

5| Additional PE cable| Conventional yellow and green wire| 6 mm²

AC Cable and Micro-breaker recommended

Model| X3-PRO- 8K-G2(2D)| X3-PRO- 10K-G2(2D)| X3-PRO- 12K-G2(2D)| X3-PRO- 15K-G2(2D)| X3-PRO- 17K-G2(2D)| X3-PRO- 20K-G2(2D)
---|---|---|---|---|---|---
L1, L2, L3 wire| 5-6 mm2| 5-6 mm2| 5-6 mm2| 5-6 mm2| 6-8 mm2| 6-8 mm2
N, PE wire| 5-6 mm2| 5-6 mm2| 5-6 mm2| 5-6 mm2| 6-8 mm2| 6-8 mm2
Micro-breaker| 20 A| 20 A| 25 A| 32 A| 40 A| 40 A

Model| X3-PRO- 15K-G2(3D)| X3-PRO- 17K-G2(3D)| X3-PRO- 20K-G2(3D)| X3-PRO- 25K-G2(3D)| X3-PRO- 30K-G2(3D)| X3-PRO- 10KW-G2
---|---|---|---|---|---|---
L1, L2, L3 wire| 5-6 mm2| 6-8 mm2| 6-8 mm2| 8-10 mm2| 10 mm2| 5-6 mm2
N, PE wire| 5-6 mm2| 6-8 mm2| 6-8 mm2| 8-10 mm2| 10 mm2| 5-6 mm2
Micro-breaker| 32 A| 40 A| 40 A| 50 A| 63 A| 20 A

Mechanical Installation

Connections

PE Connection

AC Side Connection

DC Side Connection

Communication Connection

Pin Definition

Pin Definition for DRM (For AU / NZ)/Dry Contact/Heat Pump Controller

Item| Dry Contact| Heat Pump Controller| DRM| –| –
---|---|---|---|---|---
Pin| 1| 2| 3| 4| 5| 6| 7| 8
Pin Definition| Dry Contact+| Dry Contact-| Heat Pump Controller+| Heat Pump Controller-| REF GEN| DRM0| X| X

• • For DRM, only DRM 0 is available now.

Pin Definition for RS485/Meter

Connection Method

Note

• Connect the COM port and the RS485 port respectively or simultaneously according to the actual application scene.

Possible scene 1: COM port connection only

Possible scene 2: RS485 port connection only

Possible scene 3: COM port and RS485 port connections simultaneously

Monitoring Connection

Power on the System

Australian Version DC Switch

There are two kinds of DC switch for the series inverters:

• General version (without lock; applied to most countries and regions);
• Australian version (with lock; applied to Australia and New Zealand).

States of the Australian version DC switch:

• For the Australian version DC switch, there are 3 states: ON, OFF and OFF+Lock and the default state is OFF.

Operation of the Australian version DC switch:

LCD Panel

• In normal state, the “Power” / “Pgrid” / “Today” / “Total” information will be displayed respectively. You can press the keys to switch information.
• In error state, the fault message will be displayed, please refer to corresponding solutions in the user manual.

is in waiting state.
| Light in red: The inverter is in fault state.

Long press: ESC, exit from the current interface or function, or confirm the function setting to take effect.
| Short press: Down, move the cursor to the lower part or decrease the value. Long press: Enter, confirm the selection or value change.

General Setting

• The initial password is 2014 which should be changed for the consideration of account security.

Wi-Fi Configuration

• https://www.solaxcloud.com/

Technical Data

DC input

Model| X3-PRO- 8K-G2(2D)| X3-PRO- 10K-G2(2D)| X3-PRO- 12K-G2(2D)| X3-PRO- 15K-G2(2D)| X3-PRO- 17K-G2(2D)| X3-PRO- 20K-G2(2D)
---|---|---|---|---|---|---
Max. PV array input power [W]| 12000| 15000| 18000| 22500| 25500| 30000
Max. PV voltage [d.c. V]| 1100| 1100| 1100| 1100| 1100| 1100
Rated input voltage [d.c. V]| 650| 650| 650| 650| 650| 650
MPPT voltage range [d.c. V]| 160-980| 160-980| 160-980| 160-980| 160-980| 160-980
MPPT voltage range @ full load [d.c. V]| 350-850| 350-850| 350-850| 400-850| 400-850| 400-850
Max. PV current [d.c. A]| 32/32| 32/32| 32/32| 32/32| 32/32| 32/32
Isc PV array short circuit current [d.c. A]| 40/40| 40/40| 40/40| 40/40| 40/40| 40/40
Startup voltage [d.c. V]| 200| 200| 200| 200| 200| 200
No. of MPPT| 2| 2| 2| 2| 2| 2
Strings per MPPT| 2/2| 2/2| 2/2| 2/2| 2/2| 2/2
Max. MPPT power limit per MPPT [W]*| 8000| 10000| 12000| 12000| 12000| 12000
DC disconnection switch| Yes
Max. inverter backfeed current to the array [d.c. A]| 0

Model| X3-PRO- 15K-G2(3D)| X3-PRO- 17K-G2(3D)| X3-PRO- 20K-G2(3D)| X3-PRO- 25K-G2(3D)| X3-PRO- 30K-G2(3D)| X3-PRO- 10KW-G2
---|---|---|---|---|---|---
Max. PV array input power [W]| 22500| 25500| 30000| 37500| 45000| 15000
Max. PV voltage [d.c. V]| 1100| 1100| 1100| 1100| 1100| 1100
Rated input voltage [d.c. V]| 650| 650| 650| 650| 650| 650
MPPT voltage range [d.c. V]| 160-980| 160-980| 160-980| 160-980| 160-980| 160-980
MPPT voltage range @ full load [d.c. V]| 400-850| 400-850| 400-850| 500-850| 500-850| 350-850
Max. PV current [d.c. A]| 32/32/32| 32/32/32| 32/32/32| 32/32/32| 32/32/32| 32/32
Isc PV array short circuit current [d.c. A]| 40/40/40| 40/40/40| 40/40/40| 40/40/40| 40/40/40| 40/40
Startup voltage [d.c. V]| 200| 200| 200| 200| 200| 200
No. of MPPT| 3| 3| 3| 3| 3| 2
Strings per MPPT| 2/2/2| 2/2/2| 2/2/2| 2/2/2| 2/2/2| 2/2
Max. MPPT power limit per MPPT [W]*| 12000| 12000| 12000| 15000| 15000| 10000
DC disconnection switch| Yes
Max. inverter backfeed current to the array [d.c. A]| 0

• “Max. MPPT power limit per MPPT” means the maximum PV production when using one of the MPPTs only.

AC output

Model| X3-PRO- 8K-G2(2D)| X3-PRO- 10K-G2(2D)| X3-PRO- 12K-G2(2D)| X3-PRO- 15K-G2(2D)| X3-PRO- 17K-G2(2D)| X3-PRO- 20K-G2(2D)
---|---|---|---|---|---|---
Rated output apparent power [VA]| 8000| 10000| 12000| 15000| 17000| 20000
Max. output apparent power [VA]| 8800| 11000| 13200| 16500| 18700| 22000
Nominal AC voltage [a.c. V]| 3~/N/PE, 220/380, 230/400; 3~/PE, 380, 400
Nominal AC frequency [Hz]| 50/60 (±5)
Rated output current [a.c. A]*| 12.2, 11.6| 15.2, 14.5| 18.2, 17.4| 22.8, 21.8| 25.8, 24.7| 30.3, 29.0
Max. output continuous current [a.c. A]| 13.2| 16.0| 19.3| 24.2| 27.5| 33.6
Current (inrush) [a.c. A]| 60 (18 μs)
THDi, rated power| <3%
Power factor range| 0.8 leading-0.8 lagging
Feed-in phase| Three-phase
Maximum output fault current [a.c. A]| 100
Maximum output overcurrent protection [a.c. A]| 89
Short circuit current [a.c. A]| 300

Model| X3-PRO- 15K-G2(3D)| X3-PRO- 17K-G2(3D)| X3-PRO- 20K-G2(3D)| X3-PRO- 25K-G2(3D)| X3-PRO- 30K-G2(3D)| X3-PRO- 10KW-G2
---|---|---|---|---|---|---
Rated output apparent power [VA]| 15000| 17000| 20000| 25000| 30000| 10000
Max. output apparent power [VA]| 16500| 18700| 22000| 27500| 30000

(PEA @ 33000)

| 10000
Nominal AC voltage [a.c. V]| 3~/N/PE, 220/380, 230/400; 3~/PE, 380, 400
Nominal AC frequency [Hz]| 50/60 (±5)
Rated output current [a.c. A]*| 22.8, 21.8| 25.8, 24.7| 30.3, 29.0| 37.9, 36.3| 45.5, 43.5| 15.2, 14.5
Max. output continuous current [a.c. A]| 24.2| 27.5| 33.6| 41.8| 45.5

(PEA @ 47.8)

| 16.0
Current (inrush) [a.c. A]| 60 (18 μs)
THDi, rated power| <3%
Power factor range| 0.8 leading-0.8 lagging
Feed-in phase| Three-phase
Maximum output fault current [a.c. A]| 100
Maximum output overcurrent protection [a.c. A]| 89
Short circuit current [a.c. A]| 300

• • If there are two data for this parameter, each data corresponds to the corresponding voltage.

Efficiency, safety and protection

Model| X3-PRO- 8K-G2(2D)| X3-PRO- 10K-G2(2D)| X3-PRO- 12K-G2(2D)| X3-PRO- 15K-G2(2D)| X3-PRO- 17K-G2(2D)| X3-PRO- 20K-G2(2D)
---|---|---|---|---|---|---
MPPT efficiency| 99.90%| 99.90%| 99.90%| 99.90%| 99.90%| 99.90%
Euro efficiency| 97.70%| 97.70%| 97.70%| 97.80%| 97.80%| 97.80%
Max. efficiency| 98.20%| 98.20%| 98.20%| 98.30%| 98.30%| 98.30%
Safety & Protection|
Over/under voltage protection| Yes
DC isolation protection| Yes
DC injection monitoring| Yes
Back feed current monitoring| Yes
Residual current detection| Yes
Active anti-islanding method| Frequency Shift
Over temperature protection| Yes
ARC detection| Optional
SPD protection| Type II
Arc-fault circuit interrupter(AFCI)| Optional
AC auxiliary power supply(APS)| Optional
Safety| IEC/EN 62109-1/-2
Grid monitoring| EN50549, VDE-AR-N 4105, CEI 0-16, CEI 0-21, G98, G99, AS/NZS4777.2

Model| X3-PRO- 15K-G2(3D)| X3-PRO- 17K-G2(3D)| X3-PRO- 20K-G2(3D)| X3-PRO- 25K-G2(3D)| X3-PRO- 30K-G2(3D)| X3-PRO- 10KW-G2
---|---|---|---|---|---|---
MPPT efficiency| 99.90%| 99.90%| 99.90%| 99.90%| 99.90%| 99.90%
Euro efficiency| 97.80%| 97.80%| 97.80%| 98.00%| 98.00%| 97.70%
Max. efficiency| 98.30%| 98.30%| 98.30%| 98.50%| 98.50%| 98.20%
Safety & Protection|
Over/under voltage protection| Yes
DC isolation protection| Yes
DC injection monitoring| Yes
Back feed current monitoring| Yes
Residual current detection| Yes
Active anti-islanding method| Frequency Shift
Over temperature protection| Yes
ARC detection| Optional
SPD protection| Type II
Arc-fault circuit interrupter(AFCI)| Optional
AC auxiliary power supply(APS)| Optional
Safety| IEC/EN 62109-1/-2
Grid monitoring| EN50549, VDE-AR-N 4105, CEI 0-16, CEI 0-21, G98, G99, AS/NZS4777.2

General data

Model| X3-PRO- 8K-G2(2D)| X3-PRO- 10K-G2(2D)| X3-PRO- 12K-G2(2D)| X3-PRO- 15K-G2(2D)| X3-PRO- 17K-G2(2D)| X3-PRO- 20K-G2(2D)
---|---|---|---|---|---|---
Dimensions (W × H × D) [mm]| 482×417×186
Dimension of packing (W/H/D)[mm]| 590×530×315
Net weight [kg]| 24.5| 24.5| 24.5| 26| 26| 26
Gross weight [kg]| 28.5| 28.5| 28.5| 30| 30| 30
Installation| Wall-mounted
Operating ambient temperature range [℃ ]| -30 to +60
Storage temperature [℃ ]| -30 to +60
Storage/Operation relative humidity| 0%~100%, condensation
Altitude [m]| 4000
Ingress protection| IP66
Isolation type| Transformerless
Protective class| I
Night-time consumption| <3 W
Overvoltage category| III(MAINS), II(DC)
Pollution degree| II(Inside), III(Outside)
Cooling concept| Natural cooling| Smart fan cooling
Noise level [dB]| <35| <55
Inverter topology| Non-isolated
Communication interface| Meter, USB, Modbus RTU, WiFi/LAN/4G (Optional), DRM

Model| X3-PRO- 15K-G2(3D)| X3-PRO- 17K-G2(3D)| X3-PRO- 20K-G2(3D)| X3-PRO- 25K-G2(3D)| X3-PRO- 30K-G2(3D)| X3-PRO- 10KW-G2
---|---|---|---|---|---|---
Dimensions (W × H × D) [mm]| 482×417×186
Dimension of packing (W/H/D)[mm]| 590×530×315
Net weight [kg]| 27.5| 27.5| 27.5| 28| 28| 24.5
Gross weight [kg]| 31.5| 31.5| 31.5| 32| 32| 28.5
Installation| Wall-mounted
Operating ambient temperature range [℃ ]| -30 to +60
Storage temperature [℃ ]| -30 to +60
Storage/Operation relative humidity| 0%~100%, condensation
Altitude [m]| 4000
Ingress protection| IP66
Isolation type| Transformerless
Protective class| I
Night-time consumption| <3 W
Overvoltage category| III(MAINS), II(DC)
Pollution degree| II(Inside), III(Outside)
Cooling concept| Smart fan cooling
Noise level [dB]| <55| <58| <35
Inverter topology| Non-isolated
Communication interface| Meter, USB, Modbus RTU, WiFi/LAN/4G (Optional), DRM

Contacts Information

UNITED KINGDOM

• Unit 10, Eastboro Fields, Hemdale Business Park, Nuneaton, CV11 6GL
• +44 (0) 2476 586 998
• service.uk@solaxpower.com

TURKEY

• Esenşehir Mah. Hale Sk. No:6/1 Ümraniye / İSTANBUL
• +90 (216) 622 58 00 (PBX)
• service.eu@solaxpower.com

USA

• 3780 Kilroy Airport Way, Suite 200, Long Beach, CA, US 90806
• +1 (408) 690 9464
• info@solaxpower.com

POLAND

• WARSAW AL. JANA P. II 27. POST
• +48 662 430 292
• service.pl@solaxpower.com

ITALY

• +39 348 2786 409
• support.it@solaxpower.com

AUSTRALIA

• 12-18 Lascelles St, Springvale VIC 3171
• +61 1300 476 529
• service@solaxpower.com

GERMANY

• Eisenstraße 3, 65428 Rüsselsheim am Main, Germany
• +49 (0) 6142 4091 664
• service.eu@solaxpower.com

NETHERLANDS

• Twekkeler-Es 15 7547 ST Enschede
• +31 (0) 8527 37932
• service.eu@solaxpower.com
• service.bnl@solaxpower.com

SPAIN

• +34 9373 79607
• tecnico@solaxpower.com

BRAZIL

• +55 (34) 9667 0319
• info@solaxpower.com

Warranty Registration Form

For Customer (Compulsory)

For Installer

• Please visit our warranty website: https://www.solaxcloud.com/#/warranty or use your mobile phone to scan the QR code to complete the online warranty registration.

• For more detailed warranty terms, please visit SolaX official website: www.solaxpower.com to check it.

Contact

SolaX Power Network Technology (Zhejiang) Co., Ltd.

• Add.: No. 288, Shizhu Road, Tonglu Economic Development Zone, Tonglu City, Zhejiang Province, 310000 P. R. CHINA

• Tel.: +86 (0) 571 5626 0011

• E-mail: info@solaxpower.com

• service@solaxpower.com

• www.solaxpower.com

eManual in the QR code or at: http://kb.solaxpower.com/

Copyright © SolaX Power Technology (Zhejiang) Co., Ltd. All rights reserved.

References

• kb.solaxpower.com/
• SolaX Power: Solar Inverter, Battery System, EV Charger
• Solax Cloud System
• Solax Cloud System

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