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Hybrid inverter · SAJ · EK70 HS5 Three Phase series · CEC approved September 2026

SAJ EK70 HS5-20K-T3

CEC listing: EK70 HS5-20K-T3 (AS4777-2 2020)

A 20 kW three-phase hybrid inverter that is battery-ready.

Installed in Perth, typical: ~$9,500; Estimate for the inverter alone — your quote will vary
Rated power: 20kW; How much solar it can run at once — a large roof
Battery-ready: Yes; Hybrid: a battery plugs straight in, no second box

Compare inverters See the whole EK70 HS5 Three Phase series

Spotted something outdated?

What we can tell you

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

It is a hybrid inverter: solar and a battery run from the one unit, so adding a battery later doesn't need a second box.
It needs a three-phase supply — check your switchboard, or ask your installer.
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.
We hold no captured datasheet for this model yet, so the specs below come from the CEC register only.

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: 20kW
Phases Needs a three-phase supply — check your switchboard: 3-phase
Type Runs solar and a battery from one unit: Hybrid
Warranty How long Guangzhou Sanjing Electric Co Ltd stands behind it: 10yr

Full datasheet

Every figure on file for the SAJ EK70 HS5-20K-T3, by section.

Full datasheet, by section
Specification	Value
Installation requirements
Top clearance	25 mm
Side clearance	25 mm
AC breaker	16 A
Cable gauge	50 mm²
Earthing method	TN-S
DNSP pre-approval	Yes
Estimated install time	8 hrs

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

Yes

Backup capable

Yes

CEC approval details

CEC approved

11 Sept 2026

Approval expiry

12 Feb 2028

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

$7,000–$12,000

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.

Website

www.saj-electric.com

8 years in Australian market

How it compares

The SAJ EK70 HS5-20K-T3 against the closest-power inverters from other brands.

Specification	SAJ EK70 HS5-20K-T3SAJ	Afore New Energy Technology AF20K-THAfore New Energy Technology	Solplanet ASW20K-LT-G2-ASolplanet

Rated power?	20 kW	20 kW	20 kW
Max efficiency?	0.0%	0.0%	0.0%
MPPT trackers?	Not verified	Not verified	Not verified

Phases	Three-phase	Three-phase	Three-phase
Type	Hybrid	Hybrid	Solar
Battery ready	Yes	Yes	No
Warranty	10 years	Not verified	Not verified

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

Documents

10-year inverter warranty

SAJ EK70 HS5-20K-T3

This warranty covers defects for 10 years. Major exclusions include improper installation and environmental damage such as exposure to extreme temperatures. For claims, contact SAJ support.

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

Coverage shape: Full-replacement coverage
If you sell the home: Transfers to the next homeowner
What voids it: Void if not installed by an accredited professional, modified, or tampered with.
Environment limits: Temperatures above 50°C and exposure to salt spray.

Read the official warranty document (PDF)

Fault & error codes — SAJ EK70 HS5-20K-T3

From the install manual

11 documented

Showing 11 of 11. The official install manual is the authoritative source — always confirm before acting.

1Dx7DcriticalCall your installer
Manual (PDF)
High battery voltage
Likely cause
Verify that the battery is connected to the inverter as required.
What to do
Check the battery connection and ensure it's functioning within normal limits.
1Dx7EcriticalCall your installer
Manual (PDF)
Low battery voltage
Likely cause
Verify that the battery is connected to the inverter as required.
What to do
Check the battery connection and ensure it's functioning within normal limits.
1Dx89criticalCall your installer
Manual (PDF)
Internal DC power connection error
Likely cause
Verify that the connection between the DCDC PCB and the inverter PCB is connected as required.
What to do
Check and confirm the connections between PCBs are secure and correct.
1Dx8AcriticalCall your installer
Manual (PDF)
High DC voltage fault
Likely cause
Verify that the connection between the DCDC PCB and the inverter PCB is correct and check for short in string-inverter power connection.
What to do
Inspect and verify the DC connections for issues.
1Dx8DcriticalCall your installer
Manual (PDF)
High battery voltage
Likely cause
Verify that the battery is connected to the inverter as required.
What to do
Check the battery connection and ensure it's functioning within normal limits.
1Dx8EcriticalCall your installer
Manual (PDF)
Low battery voltage
Likely cause
Verify that the battery is connected to the inverter as required.
What to do
Check the battery connection and ensure it's functioning within normal limits.
1DxA0criticalCall your installer
Manual (PDF)
Battery error
Likely cause
Call battery vendor support.
What to do
Contact battery vendor support for assistance.
1DxA2criticalCall your installer
Manual (PDF)
Operation conditions verification failed
Likely cause
Verify that the battery is connected to the inverter as required, battery voltage is within range and the battery is enabled (power and communication).
What to do
Check connections, voltage, and enable the battery if necessary.
1Dx88warning
Manual (PDF)
Internal communication error
Likely cause
Verify that the RS485 connector on the communication board is connected as required.
What to do
Recheck the RS485 connections and secure as needed.
1Dx9Fwarning
Manual (PDF)
Battery communication error
Likely cause
Verify that the CAN connectors are connected as required.
What to do
Check CAN connections for proper setup.
1DxA1warning
Manual (PDF)
Battery not selected
Likely cause
Configure battery as required.
What to do
Ensure the battery is configured correctly in the system settings.

Part of the SAJ EK70 HS5 Three Phase series

Compare every SAJ EK70 HS5 Three Phase 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.

Hybrid inverter · SAJ · EK70 HS5 Three Phase series · CEC approved September 2026

SAJ EK70 HS5-20K-T3

CEC listing: EK70 HS5-20K-T3 (AS4777-2 2020)

A 20 kW three-phase hybrid inverter that is battery-ready.

Installed in Perth, typical: ~$9,500; Estimate for the inverter alone — your quote will vary
Rated power: 20kW; How much solar it can run at once — a large roof
Battery-ready: Yes; Hybrid: a battery plugs straight in, no second box

Compare inverters See the whole EK70 HS5 Three Phase series

Spotted something outdated?

What we can tell you

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

It is a hybrid inverter: solar and a battery run from the one unit, so adding a battery later doesn't need a second box.
It needs a three-phase supply — check your switchboard, or ask your installer.
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.
We hold no captured datasheet for this model yet, so the specs below come from the CEC register only.

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: 20kW
Phases Needs a three-phase supply — check your switchboard: 3-phase
Type Runs solar and a battery from one unit: Hybrid
Warranty How long Guangzhou Sanjing Electric Co Ltd stands behind it: 10yr

Full datasheet

Every figure on file for the SAJ EK70 HS5-20K-T3, by section.

Full datasheet, by section
Specification	Value
Installation requirements
Top clearance	25 mm
Side clearance	25 mm
AC breaker	16 A
Cable gauge	50 mm²
Earthing method	TN-S
DNSP pre-approval	Yes
Estimated install time	8 hrs

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

Yes

Backup capable

Yes

CEC approval details

CEC approved

11 Sept 2026

Approval expiry

12 Feb 2028

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

$7,000–$12,000

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

Website

www.saj-electric.com

8 years in Australian market

How it compares

The SAJ EK70 HS5-20K-T3 against the closest-power inverters from other brands.

Specification	SAJ EK70 HS5-20K-T3SAJ	Afore New Energy Technology AF20K-THAfore New Energy Technology	Solplanet ASW20K-LT-G2-ASolplanet

Rated power?	20 kW	20 kW	20 kW
Max efficiency?	0.0%	0.0%	0.0%
MPPT trackers?	Not verified	Not verified	Not verified

Phases	Three-phase	Three-phase	Three-phase
Type	Hybrid	Hybrid	Solar
Battery ready	Yes	Yes	No
Warranty	10 years	Not verified	Not verified

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

Documents

10-year inverter warranty

SAJ EK70 HS5-20K-T3

This warranty covers defects for 10 years. Major exclusions include improper installation and environmental damage such as exposure to extreme temperatures. For claims, contact SAJ support.

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

Coverage shape: Full-replacement coverage
If you sell the home: Transfers to the next homeowner
What voids it: Void if not installed by an accredited professional, modified, or tampered with.
Environment limits: Temperatures above 50°C and exposure to salt spray.

Read the official warranty document (PDF)

Fault & error codes — SAJ EK70 HS5-20K-T3

From the install manual

11 documented

Showing 11 of 11. The official install manual is the authoritative source — always confirm before acting.

1Dx7DcriticalCall your installer
Manual (PDF)
High battery voltage
Likely cause
Verify that the battery is connected to the inverter as required.
What to do
Check the battery connection and ensure it's functioning within normal limits.
1Dx7EcriticalCall your installer
Manual (PDF)
Low battery voltage
Likely cause
Verify that the battery is connected to the inverter as required.
What to do
Check the battery connection and ensure it's functioning within normal limits.
1Dx89criticalCall your installer
Manual (PDF)
Internal DC power connection error
Likely cause
Verify that the connection between the DCDC PCB and the inverter PCB is connected as required.
What to do
Check and confirm the connections between PCBs are secure and correct.
1Dx8AcriticalCall your installer
Manual (PDF)
High DC voltage fault
Likely cause
Verify that the connection between the DCDC PCB and the inverter PCB is correct and check for short in string-inverter power connection.
What to do
Inspect and verify the DC connections for issues.
1Dx8DcriticalCall your installer
Manual (PDF)
High battery voltage
Likely cause
Verify that the battery is connected to the inverter as required.
What to do
Check the battery connection and ensure it's functioning within normal limits.
1Dx8EcriticalCall your installer
Manual (PDF)
Low battery voltage
Likely cause
Verify that the battery is connected to the inverter as required.
What to do
Check the battery connection and ensure it's functioning within normal limits.
1DxA0criticalCall your installer
Manual (PDF)
Battery error
Likely cause
Call battery vendor support.
What to do
Contact battery vendor support for assistance.
1DxA2criticalCall your installer
Manual (PDF)
Operation conditions verification failed
Likely cause
Verify that the battery is connected to the inverter as required, battery voltage is within range and the battery is enabled (power and communication).
What to do
Check connections, voltage, and enable the battery if necessary.
1Dx88warning
Manual (PDF)
Internal communication error
Likely cause
Verify that the RS485 connector on the communication board is connected as required.
What to do
Recheck the RS485 connections and secure as needed.
1Dx9Fwarning
Manual (PDF)
Battery communication error
Likely cause
Verify that the CAN connectors are connected as required.
What to do
Check CAN connections for proper setup.
1DxA1warning
Manual (PDF)
Battery not selected
Likely cause
Configure battery as required.
What to do
Ensure the battery is configured correctly in the system settings.

Part of the SAJ EK70 HS5 Three Phase series

Compare every SAJ EK70 HS5 Three Phase 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