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Solar inverter · SAJ · R5 series · CEC approved July 2025

SAJ R5-7K-S2-15

CEC listing: R5-7K-S2-15 (AS4777-2 2020)

A 7 kW single-phase solar inverter.

Installed in Perth, typical: ~$2,100; Estimate for the inverter alone — your quote will vary
Rated power: 7kW; How much solar it can run at once
Battery-ready: No; Solar-only: adding a battery later means a second inverter

Datasheet (PDF)Compare inverters See the whole R5 series

Spotted something outdated?

What we can tell you

Read from the figures on this page. No review written yet.

It is a solar-only inverter: adding a battery later means a second inverter or an AC-coupled battery.
It runs on a standard single-phase supply.
We can't confirm it is on Synergy's approved list — a battery paired with it needs that for the WA Battery Scheme, so ask your installer.
It is CEC-approved, which a new install needs to qualify for STCs.

Key specs, in plain terms

The numbers that matter for a home. The full datasheet is below.

Rated power How much solar it can turn into usable power at once: 7kW
Max efficiency How much of the solar you make reaches the house: 97.2%
Phases Runs on a standard single-phase supply: Single
MPPT trackers One string of panels, tuned as a whole: 1
Type Runs solar only: Solar
Warranty How long Guangzhou Sanjing Electric Co Ltd stands behind it: 5yr

Full datasheet

Every figure on file for the SAJ R5-7K-S2-15, by section.

Full datasheet, by section
Specification	Value
Efficiency
Max efficiency	97.2%
DC input & MPPT
MPPT trackers	1
Physical
IP rating	IP65
Installation requirements
Cable gauge	16 mm²

Parsed from the manufacturer datasheet, install manual, and warranty document. Confirm against the linked PDFs before relying on a value for a quote or installation.

Features & compatibility

Battery compatible

Backup capable

CEC approval details

CEC approved

10 July 2025

Approval expiry

23 June 2027

Status

Active

Eligible for rebates

Yes

About Guangzhou Sanjing Electric Co Ltd

Years in AU Market

8 years

Australian Office

Not verified

CEC-Approved Batteries

CEC-Approved Panels

What it costs in Perth

Typical installed, inverter only

$1,400–$2,800

Estimate confidence: Medium

Prices vary by installer, configuration and site complexity. Get exact quotes from installers you choose.

Explore your options

Compare quotes from installers you choose

WA compliance

Synergy approved list: Not confirmed
ESM compliant: Check

Western Power approval is required for every grid-connected install. Under Emergency Solar Management, a new system must be remotely manageable, or take an export limit instead — ask your installer to confirm this inverter’s ESM status.

Perth performance

Estimate for a full-size array on this inverter

Daily yield: 29.8 kWh
Annual yield: 10,859 kWh

At 5 peak sun hours a day (BOM) with a 15% system derate.

Website

www.saj-electric.com

8 years in Australian market

How it compares

The SAJ R5-7K-S2-15 against the closest-power inverters from other brands.

Specification	SAJ R5-7K-S2-15SAJ	Energizer Force 7.0HS+Energizer	Energizer Force 7.0SEnergizer

Rated power?	7 kW	7 kW	7 kW
Max efficiency?	97.2%best value	0.0%	0.0%
MPPT trackers?	1	Not verified	Not verified

Phases	Single-phase	Single-phase	Single-phase
Type	Solar	Hybrid	Solar
Battery ready	No	Yes	No
Warranty	5 years	Not verified	Not verified

Specs from the CEC register and datasheet enrichment. Indicative — confirm exact figures with your installer.

Documents

5-year inverter warranty

SAJ R5-7K-S2-15

SAJ provides a 5-year standard warranty for inverters that covers defects in design or manufacture. The warranty is voided by unauthorized modifications or installations.

AI-summarised from the manufacturer warranty document. Always confirm against the linked PDF before relying on it for a claim.

Coverage shape: Pro-rata — value reduces with age
If you sell the home: Transfers to the next homeowner
What voids it: Warranty voided by unauthorized product modifications, improper installations, or failure to follow safety guidelines.
Environment limits: / -40° C to +60° C

Read the official warranty document (PDF)

Fault & error codes — SAJ R5-7K-S2-15

From the install manual

40 documented

Showing 40 of 40. The official install manual is the authoritative source — always confirm before acting.

03criticalCall your installer
Manual (PDF)
High Temperature Master
Likely cause
Inverter overheating
What to do
Check whether the radiator is blocked or if the inverter is in too high or too low temperature. If normal, contact support.
24criticalCall your installer
Manual (PDF)
Grid Lost Error Master
Likely cause
Lost connection to grid
What to do
Check the connection status between the inverter and the grid, troubleshoot.
31criticalCall your installer
Manual (PDF)
Insulation Error Master
Likely cause
Insulation resistance failure
What to do
Check insulation resistance, contact support if normal.
33criticalCall your installer
Manual (PDF)
Over Bus Voltage Master
Likely cause
Bus voltage exceeds limits
What to do
Check settings of the solar panel; if normal, contact support.
38criticalCall your installer
Manual (PDF)
Bus Hardware Overvoltage Master
Likely cause
Overvoltage in hardware components
What to do
Contact SAJ technical support immediately for inspection.
39criticalCall your installer
Manual (PDF)
PV1 Hardware Overcurrent Master
Likely cause
Overcurrent detected in PV1 circuit
What to do
Check PV1 connections; contact support if normal.
40criticalCall your installer
Manual (PDF)
PV2 Hardware Overcurrent Master
Likely cause
Overcurrent detected in PV2 circuit
What to do
Check PV2 connections; contact support if normal.
41criticalCall your installer
Manual (PDF)
Hardware Overcurrent Master
Likely cause
General hardware overcurrent detected
What to do
Contact SAJ technical support for assistance.
44criticalCall your installer
Manual (PDF)
Null line voltage to earth fault Master
Likely cause
Fault in line voltage to earth
What to do
Contact support immediately for inspection.
73criticalCall your installer
Manual (PDF)
Grid Lost Error Slave
Likely cause
Lost communication or connection with the grid
What to do
Check AC connection and grid status; contact support if normal.
01warningCall your installer
Manual (PDF)
Relay Error Master
Likely cause
Faulty relay or connection issue
What to do
If this error occurs frequently, please contact your distributor or call SAJ technical support.
02warningCall your installer
Manual (PDF)
Storer Error Master
Likely cause
Fault in energy storage system
What to do
If this error occurs frequently, please contact your distributor or call SAJ technical support.
04warningCall your installer
Manual (PDF)
Low Temperature Master
Likely cause
Inverter too cold for operation
What to do
Ensure inverter is within operational temperature range. If the condition remains unsolved, contact support.
05warningCall your installer
Manual (PDF)
Interior Communication Error Master
Likely cause
Communication issue within the inverter
What to do
If this error occurs frequently, please contact your distributor or call SAJ technical support.
06warningCall your installer
Manual (PDF)
GFCI Devices Error Master
Likely cause
Fault in GFCI device
What to do
If this error occurs frequently, please contact your distributor or call SAJ technical support.
07warningCall your installer
Manual (PDF)
DCI Devices Error Master
Likely cause
Fault in DCI device
What to do
If this error occurs frequently, please contact your distributor or call SAJ technical support.
08warningCall your installer
Manual (PDF)
Current Sensor Error Master
Likely cause
Faulty current sensor
What to do
If this error occurs frequently, please contact your distributor or call SAJ technical support.
09warningCall your installer
Manual (PDF)
Grid Over Voltage Master
Likely cause
Voltage exceeds grid limits
What to do
Check the volt of the grid; if too high, inquire local grid workers about adjustment.
10warningCall your installer
Manual (PDF)
Grid Low Voltage Master
Likely cause
Voltage below grid limits
What to do
Check the connection between the inverter and the grid, and settings of on-grid standards.
15warningCall your installer
Manual (PDF)
High average voltage of 10 minutes Master
Likely cause
Sustained high voltage
What to do
Check grid voltage levels and contact support if the issue persists.
18warningCall your installer
Manual (PDF)
Over Frequency Master
Likely cause
Frequency exceeds operational limits
What to do
Check the setting of country and frequency. Contact support if normal.
19warningCall your installer
Manual (PDF)
Low Frequency Master
Likely cause
Frequency below operational limits
What to do
Check the setting of country and frequency. Contact support if normal.
27warningCall your installer
Manual (PDF)
GFCI Error Master
Likely cause
Ground fault detected
What to do
Check insulation resistance of solar panel; contact support if normal.
28warningCall your installer
Manual (PDF)
DCI Error Master
Likely cause
Fault detected in DCI system
What to do
If this error always exists, please contact your distributor or call SAJ technical support.
34warningCall your installer
Manual (PDF)
Under Bus Voltage Master
Likely cause
Bus voltage below limits
What to do
Contact SAJ support for further assistance.
35warningCall your installer
Manual (PDF)
Overcurrent Master
Likely cause
Current exceeds limits
What to do
Check connections and stability of grid voltage. Contact support if normal.
45warningCall your installer
Manual (PDF)
Fan Error Master
Likely cause
Fault in fan operation
What to do
Check for blockages or issues with the fan. Contact support if normal.
49warningCall your installer
Manual (PDF)
Loss of communication between Power Meter and Control Board Master
Likely cause
Communication interruption
What to do
Check connections; contact support if normal.
50warningCall your installer
Manual (PDF)
Interior Communication Error Slave
Likely cause
Communication failure in slave components
What to do
Contact SAJ technical support for assistance.
51warningCall your installer
Manual (PDF)
Voltage Consistency Error Slave
Likely cause
Inconsistent voltage readings
What to do
Contact SAJ for troubleshooting support.
54warningCall your installer
Manual (PDF)
Frequency Consistency Error Slave
Likely cause
Inconsistent frequency readings
What to do
Contact SAJ for troubleshooting support.
57warningCall your installer
Manual (PDF)
GFCI Consistency Error Slave
Likely cause
Inconsistent GFCI readings
What to do
Contact SAJ for troubleshooting support.
61warningCall your installer
Manual (PDF)
Overvoltage Slave
Likely cause
Voltage exceeds safe levels for slave components
What to do
Contact SAJ for troubleshooting support.
62warningCall your installer
Manual (PDF)
Under Voltage Slave
Likely cause
Voltage below safe levels for slave components
What to do
Contact SAJ for troubleshooting support.
67warningCall your installer
Manual (PDF)
Over Frequency Slave
Likely cause
Frequency exceeds safe levels for slave components
What to do
Contact SAJ for troubleshooting support.
68warningCall your installer
Manual (PDF)
Under Frequency Slave
Likely cause
Frequency below safe levels for slave components
What to do
Contact SAJ for troubleshooting support.
76warningCall your installer
Manual (PDF)
PV1 Overvoltage Slave
Likely cause
Overvoltage condition detected in PV1
What to do
Check PV1 voltage levels; contact support if normal.
77warningCall your installer
Manual (PDF)
PV2 Overvoltage Slave
Likely cause
Overvoltage condition detected in PV2
What to do
Check PV2 voltage levels; contact support if normal.
81warningCall your installer
Manual (PDF)
Loss of Communication between Display Panel and Control Board Master
Likely cause
Communication failure between display and control board
What to do
Contact SAJ technical support for assistance.
86warningCall your installer
Manual (PDF)
DRM0 Error Master
Likely cause
Error in DRM system
What to do
Contact SAJ technical support for assistance.

Part of the SAJ R5 series

Compare every SAJ R5 variant side by side →

More Guangzhou Sanjing Electric Co Ltd Inverters

C6-100K-T9-40 (AS4777-2 2020)

100 kW · 3φ

C6-110K-T12-40 (AS4777-2 2020)

110 kW · 3φ

C6-125K-T12-40 (AS4777-2 2020)

125 kW · 3φ

C6-75K-T6-40 (AS4777-2 2020)

75 kW · 3φ

C6-99K-T9-40 (AS4777-2 2020)

99.999 kW · 3φ

CHS2-29.9K-T4-204.8V/280Ah/51.5kWh (AS4777-2 2020)

29.999 kW · 3φ

View all Guangzhou Sanjing Electric Co Ltd inverters

More from Guangzhou Sanjing Electric Co Ltd

Other CEC-approved products from Guangzhou Sanjing Electric Co Ltd available in Australia.

Guangzhou Sanjing Electric Co Ltd Batteries

B2-10.0-HV1

9.6 kWh · LFP

B2-10.0-HV5

9.6 kWh · LFP

B2-12.8-HV1-S

12.8 kWh · LFP

B2-15.0-HV1

14.4 kWh · LFP

B2-15.0-HV5

14.4 kWh · LFP

B2-19.2-HV1-S

19.2 kWh · LFP

View all Guangzhou Sanjing Electric Co Ltd batteries

View full Guangzhou Sanjing Electric Co Ltd manufacturer profile

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Get a quote from an installer from our network that covers your area. You choose whether to act on it. No obligation.

About this data

All inverter specifications are sourced from the CEC Approved Products Register. Specifications are provided as published by the CEC and may differ from manufacturer datasheets. Verify current specifications with the manufacturer or your installer before purchasing. Not all listed models may be currently available in Western Australia.

Solar inverter · SAJ · R5 series · CEC approved July 2025

SAJ R5-7K-S2-15

CEC listing: R5-7K-S2-15 (AS4777-2 2020)

A 7 kW single-phase solar inverter.

Installed in Perth, typical: ~$2,100; Estimate for the inverter alone — your quote will vary
Rated power: 7kW; How much solar it can run at once
Battery-ready: No; Solar-only: adding a battery later means a second inverter

Datasheet (PDF)Compare inverters See the whole R5 series

Spotted something outdated?

What we can tell you

Read from the figures on this page. No review written yet.

It is a solar-only inverter: adding a battery later means a second inverter or an AC-coupled battery.
It runs on a standard single-phase supply.
We can't confirm it is on Synergy's approved list — a battery paired with it needs that for the WA Battery Scheme, so ask your installer.
It is CEC-approved, which a new install needs to qualify for STCs.

Key specs, in plain terms

The numbers that matter for a home. The full datasheet is below.

Rated power How much solar it can turn into usable power at once: 7kW
Max efficiency How much of the solar you make reaches the house: 97.2%
Phases Runs on a standard single-phase supply: Single
MPPT trackers One string of panels, tuned as a whole: 1
Type Runs solar only: Solar
Warranty How long Guangzhou Sanjing Electric Co Ltd stands behind it: 5yr

Full datasheet

Every figure on file for the SAJ R5-7K-S2-15, by section.

Full datasheet, by section
Specification	Value
Efficiency
Max efficiency	97.2%
DC input & MPPT
MPPT trackers	1
Physical
IP rating	IP65
Installation requirements
Cable gauge	16 mm²

Parsed from the manufacturer datasheet, install manual, and warranty document. Confirm against the linked PDFs before relying on a value for a quote or installation.

Features & compatibility

Battery compatible

Backup capable

CEC approval details

CEC approved

10 July 2025

Approval expiry

23 June 2027

Status

Active

Eligible for rebates

Yes

About Guangzhou Sanjing Electric Co Ltd

Years in AU Market

8 years

Australian Office

Not verified

CEC-Approved Batteries

CEC-Approved Panels

What it costs in Perth

Typical installed, inverter only

$1,400–$2,800

Estimate confidence: Medium

Prices vary by installer, configuration and site complexity. Get exact quotes from installers you choose.

Explore your options

Compare quotes from installers you choose

WA compliance

Synergy approved list: Not confirmed
ESM compliant: Check

Perth performance

Estimate for a full-size array on this inverter

Daily yield: 29.8 kWh
Annual yield: 10,859 kWh

At 5 peak sun hours a day (BOM) with a 15% system derate.

Website

www.saj-electric.com

8 years in Australian market

How it compares

The SAJ R5-7K-S2-15 against the closest-power inverters from other brands.

Specification	SAJ R5-7K-S2-15SAJ	Energizer Force 7.0HS+Energizer	Energizer Force 7.0SEnergizer

Rated power?	7 kW	7 kW	7 kW
Max efficiency?	97.2%best value	0.0%	0.0%
MPPT trackers?	1	Not verified	Not verified

Phases	Single-phase	Single-phase	Single-phase
Type	Solar	Hybrid	Solar
Battery ready	No	Yes	No
Warranty	5 years	Not verified	Not verified

Specs from the CEC register and datasheet enrichment. Indicative — confirm exact figures with your installer.

Documents

5-year inverter warranty

SAJ R5-7K-S2-15

SAJ provides a 5-year standard warranty for inverters that covers defects in design or manufacture. The warranty is voided by unauthorized modifications or installations.

AI-summarised from the manufacturer warranty document. Always confirm against the linked PDF before relying on it for a claim.

Coverage shape: Pro-rata — value reduces with age
If you sell the home: Transfers to the next homeowner
What voids it: Warranty voided by unauthorized product modifications, improper installations, or failure to follow safety guidelines.
Environment limits: / -40° C to +60° C

Read the official warranty document (PDF)

Fault & error codes — SAJ R5-7K-S2-15

From the install manual

40 documented

Showing 40 of 40. The official install manual is the authoritative source — always confirm before acting.

03criticalCall your installer
Manual (PDF)
High Temperature Master
Likely cause
Inverter overheating
What to do
Check whether the radiator is blocked or if the inverter is in too high or too low temperature. If normal, contact support.
24criticalCall your installer
Manual (PDF)
Grid Lost Error Master
Likely cause
Lost connection to grid
What to do
Check the connection status between the inverter and the grid, troubleshoot.
31criticalCall your installer
Manual (PDF)
Insulation Error Master
Likely cause
Insulation resistance failure
What to do
Check insulation resistance, contact support if normal.
33criticalCall your installer
Manual (PDF)
Over Bus Voltage Master
Likely cause
Bus voltage exceeds limits
What to do
Check settings of the solar panel; if normal, contact support.
38criticalCall your installer
Manual (PDF)
Bus Hardware Overvoltage Master
Likely cause
Overvoltage in hardware components
What to do
Contact SAJ technical support immediately for inspection.
39criticalCall your installer
Manual (PDF)
PV1 Hardware Overcurrent Master
Likely cause
Overcurrent detected in PV1 circuit
What to do
Check PV1 connections; contact support if normal.
40criticalCall your installer
Manual (PDF)
PV2 Hardware Overcurrent Master
Likely cause
Overcurrent detected in PV2 circuit
What to do
Check PV2 connections; contact support if normal.
41criticalCall your installer
Manual (PDF)
Hardware Overcurrent Master
Likely cause
General hardware overcurrent detected
What to do
Contact SAJ technical support for assistance.
44criticalCall your installer
Manual (PDF)
Null line voltage to earth fault Master
Likely cause
Fault in line voltage to earth
What to do
Contact support immediately for inspection.
73criticalCall your installer
Manual (PDF)
Grid Lost Error Slave
Likely cause
Lost communication or connection with the grid
What to do
Check AC connection and grid status; contact support if normal.
01warningCall your installer
Manual (PDF)
Relay Error Master
Likely cause
Faulty relay or connection issue
What to do
If this error occurs frequently, please contact your distributor or call SAJ technical support.
02warningCall your installer
Manual (PDF)
Storer Error Master
Likely cause
Fault in energy storage system
What to do
If this error occurs frequently, please contact your distributor or call SAJ technical support.
04warningCall your installer
Manual (PDF)
Low Temperature Master
Likely cause
Inverter too cold for operation
What to do
Ensure inverter is within operational temperature range. If the condition remains unsolved, contact support.
05warningCall your installer
Manual (PDF)
Interior Communication Error Master
Likely cause
Communication issue within the inverter
What to do
If this error occurs frequently, please contact your distributor or call SAJ technical support.
06warningCall your installer
Manual (PDF)
GFCI Devices Error Master
Likely cause
Fault in GFCI device
What to do
If this error occurs frequently, please contact your distributor or call SAJ technical support.
07warningCall your installer
Manual (PDF)
DCI Devices Error Master
Likely cause
Fault in DCI device
What to do
If this error occurs frequently, please contact your distributor or call SAJ technical support.
08warningCall your installer
Manual (PDF)
Current Sensor Error Master
Likely cause
Faulty current sensor
What to do
If this error occurs frequently, please contact your distributor or call SAJ technical support.
09warningCall your installer
Manual (PDF)
Grid Over Voltage Master
Likely cause
Voltage exceeds grid limits
What to do
Check the volt of the grid; if too high, inquire local grid workers about adjustment.
10warningCall your installer
Manual (PDF)
Grid Low Voltage Master
Likely cause
Voltage below grid limits
What to do
Check the connection between the inverter and the grid, and settings of on-grid standards.
15warningCall your installer
Manual (PDF)
High average voltage of 10 minutes Master
Likely cause
Sustained high voltage
What to do
Check grid voltage levels and contact support if the issue persists.
18warningCall your installer
Manual (PDF)
Over Frequency Master
Likely cause
Frequency exceeds operational limits
What to do
Check the setting of country and frequency. Contact support if normal.
19warningCall your installer
Manual (PDF)
Low Frequency Master
Likely cause
Frequency below operational limits
What to do
Check the setting of country and frequency. Contact support if normal.
27warningCall your installer
Manual (PDF)
GFCI Error Master
Likely cause
Ground fault detected
What to do
Check insulation resistance of solar panel; contact support if normal.
28warningCall your installer
Manual (PDF)
DCI Error Master
Likely cause
Fault detected in DCI system
What to do
If this error always exists, please contact your distributor or call SAJ technical support.
34warningCall your installer
Manual (PDF)
Under Bus Voltage Master
Likely cause
Bus voltage below limits
What to do
Contact SAJ support for further assistance.
35warningCall your installer
Manual (PDF)
Overcurrent Master
Likely cause
Current exceeds limits
What to do
Check connections and stability of grid voltage. Contact support if normal.
45warningCall your installer
Manual (PDF)
Fan Error Master
Likely cause
Fault in fan operation
What to do
Check for blockages or issues with the fan. Contact support if normal.
49warningCall your installer
Manual (PDF)
Loss of communication between Power Meter and Control Board Master
Likely cause
Communication interruption
What to do
Check connections; contact support if normal.
50warningCall your installer
Manual (PDF)
Interior Communication Error Slave
Likely cause
Communication failure in slave components
What to do
Contact SAJ technical support for assistance.
51warningCall your installer
Manual (PDF)
Voltage Consistency Error Slave
Likely cause
Inconsistent voltage readings
What to do
Contact SAJ for troubleshooting support.
54warningCall your installer
Manual (PDF)
Frequency Consistency Error Slave
Likely cause
Inconsistent frequency readings
What to do
Contact SAJ for troubleshooting support.
57warningCall your installer
Manual (PDF)
GFCI Consistency Error Slave
Likely cause
Inconsistent GFCI readings
What to do
Contact SAJ for troubleshooting support.
61warningCall your installer
Manual (PDF)
Overvoltage Slave
Likely cause
Voltage exceeds safe levels for slave components
What to do
Contact SAJ for troubleshooting support.
62warningCall your installer
Manual (PDF)
Under Voltage Slave
Likely cause
Voltage below safe levels for slave components
What to do
Contact SAJ for troubleshooting support.
67warningCall your installer
Manual (PDF)
Over Frequency Slave
Likely cause
Frequency exceeds safe levels for slave components
What to do
Contact SAJ for troubleshooting support.
68warningCall your installer
Manual (PDF)
Under Frequency Slave
Likely cause
Frequency below safe levels for slave components
What to do
Contact SAJ for troubleshooting support.
76warningCall your installer
Manual (PDF)
PV1 Overvoltage Slave
Likely cause
Overvoltage condition detected in PV1
What to do
Check PV1 voltage levels; contact support if normal.
77warningCall your installer
Manual (PDF)
PV2 Overvoltage Slave
Likely cause
Overvoltage condition detected in PV2
What to do
Check PV2 voltage levels; contact support if normal.
81warningCall your installer
Manual (PDF)
Loss of Communication between Display Panel and Control Board Master
Likely cause
Communication failure between display and control board
What to do
Contact SAJ technical support for assistance.
86warningCall your installer
Manual (PDF)
DRM0 Error Master
Likely cause
Error in DRM system
What to do
Contact SAJ technical support for assistance.

Part of the SAJ R5 series

Compare every SAJ R5 variant side by side →

More Guangzhou Sanjing Electric Co Ltd Inverters

C6-100K-T9-40 (AS4777-2 2020)

100 kW · 3φ

C6-110K-T12-40 (AS4777-2 2020)

110 kW · 3φ

C6-125K-T12-40 (AS4777-2 2020)

125 kW · 3φ

C6-75K-T6-40 (AS4777-2 2020)

75 kW · 3φ

C6-99K-T9-40 (AS4777-2 2020)

99.999 kW · 3φ

CHS2-29.9K-T4-204.8V/280Ah/51.5kWh (AS4777-2 2020)

29.999 kW · 3φ

View all Guangzhou Sanjing Electric Co Ltd inverters