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Solar inverter · FoxESS · T-G3 Series series · CEC approved March 2025

FoxESS T5-G3

CEC listing: T5-G3 (AS4777-2 2020)

A 5 kW three-phase solar inverter.

Installed in Perth, typical: ~$1,500; Estimate for the inverter alone — your quote will vary
Rated power: 5kW; 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 T-G3 Series series

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 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.

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: 5kW
Max efficiency How much of the solar you make reaches the house: 98.0%
Phases Needs a three-phase supply — check your switchboard: 3-phase
MPPT trackers 2 roof faces can be tuned independently: 2
Type Runs solar only: Solar

Full datasheet

Every figure on file for the FoxESS T5-G3, by section.

Full datasheet, by section
Specification	Value
Power & output
Nominal power	5 kW
Maximum power	5 kW
Apparent power	5 kVA
Phases	3
Efficiency
Max efficiency	98%
European efficiency	97%
DC input & MPPT
MPPT trackers	2
Max input voltage	1100 V
MPPT voltage min	190 V
MPPT voltage max	1000 V
Max input current	14 A
Battery & backup
Battery compatible	No
Backup capable	No
Continuous backup	0 kW
Physical
Dimensions (H×W×D)	0 × 0 × 0 mm
IP rating	IP65
Cooling	Natural
Operating temperature	-25°C to 60°C
Installation requirements
AC breaker	25 A
Cable gauge	2.5 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

7 Mar 2025

Approval expiry

7 Mar 2028

Status

Active

Eligible for rebates

Yes

About FOXESS CO LTD

Years in AU Market

7 years

Australian Office

Yes

CEC-Approved Batteries

116

CEC-Approved Panels

What it costs in Perth

Typical installed, inverter only

$1,000–$2,000

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.

Perth performance

Estimate for a full-size array on this inverter

Daily yield: 21.3 kWh
Annual yield: 7,756 kWh

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

Australian office

Has local presence

Website

au.fox-ess.com

7 years in Australian market

How it compares

The FoxESS T5-G3 against the closest-power inverters from other brands.

Specification	FoxESS T5-G3FoxESS	Energizer FORCE 5.0HSEnergizer	Energizer Force 5.0HT+Energizer

Rated power?	5 kW	5 kW	5 kW
Max efficiency?	98.0%best value	0.0%	0.0%
MPPT trackers?	2	Not verified	Not verified

Phases	Three-phase	Single-phase	Three-phase
Type	Solar	Hybrid	Hybrid
Battery ready	No	Yes	Yes
Warranty	0 years	Not verified	Not verified

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

Documents

Warranty summary

This warranty covers defects in materials and workmanship. It does not cover damages from non-accredited installations or modifications.

0-year inverter warranty

FoxESS T5-G3

This warranty covers defects in materials and workmanship. It does not cover damages from non-accredited installations or modifications.

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: Does not transfer with the home
What voids it: non-accredited installation, modifications
Environment limits: /null

Read the official warranty document (PDF)

Fault & error codes — FoxESS T5-G3

From the install manual

12 documented

Showing 12 of 12. The official install manual is the authoritative source — always confirm before acting.

Bus volt faultwarningCall your installer
Manual (PDF)
Bus voltage fault
Likely cause
PV system connection issue.
What to do
Disconnect PV(+), PV(-) using the DC switch, reconnect and check again.
DCI over rangewarningCall your installer
Manual (PDF)
DC input current over range
Likely cause
Exceeds input current specification.
What to do
Wait for one minute after reconnection and check voltage again.
EEprom faultwarningCall your installer
Manual (PDF)
EEPROM fault
Likely cause
Fault in the EEPROM module.
What to do
Disconnect PV(+), PV(-) using the DC switch, reconnect and check again.
GFCI faultwarningCall your installer
Manual (PDF)
Ground Fault Circuit Interrupter fault
Likely cause
Check on AC side equipment.
What to do
Disconnect DC and AC connector, check AC side equipment, reconnect and check again.
Grid freq faultwarningCall your installer
Manual (PDF)
Grid frequency fault
Likely cause
Grid frequency not within specifications.
What to do
Wait for one minute, check grid voltage and frequency, or seek help.
Grid lost faultwarningCall your installer
Manual (PDF)
Grid connection loss
Likely cause
Issues with grid connection.
What to do
Check grid connection and usability.
Grid volt faultwarningCall your installer
Manual (PDF)
Grid voltage fault
Likely cause
Grid voltage outside acceptable range.
What to do
Wait for one minute, check grid voltage and frequency, or seek help.
Grid10MinOVPwarningCall your installer
Manual (PDF)
Grid voltage over protection
Likely cause
Grid voltage spike.
What to do
System will reconnect automatically if grid returns to normal.
InconsistencywarningCall your installer
Manual (PDF)
Inconsistency fault
Likely cause
Issues with voltage reading.
What to do
Disconnect PV(+), PV(-) and check again after one minute.
ISO faultwarningCall your installer
Manual (PDF)
Isolation fault
Likely cause
Failure in insulation monitoring.
What to do
Check impedance among PV(+), PV(-) and ground.
SPS faultwarningCall your installer
Manual (PDF)
SPS fault
Likely cause
Disconnect of PV and grid.
What to do
Turn off the PV and grid, reconnect them.
V grid transientwarningCall your installer
Manual (PDF)
Voltage grid transient fault
Likely cause
Transient voltage event.
What to do
Disconnect PV(+), PV(-) using DC switch, reconnect and check again.

Part of the FoxESS T-G3 Series series

Compare every FoxESS T-G3 Series variant side by side →

More FOXESS CO LTD Inverters

1K5-1P-HI-10.5 (AS4777-2 2020)

10.5 kW · 1φ

1K5-1P-HI-10 (AS4777-2 2020)

10 kW · 1φ

1K5-1P-HI-3.7 (AS4777-2 2020)

3.68 kW · 1φ

1K5-1P-HI-4.6 (AS4777-2 2020)

4.6 kW · 1φ

1K5-1P-HI-5 (AS4777-2 2020)

5 kW · 1φ

1K5-1P-HI-6 (AS4777-2 2020)

6 kW · 1φ

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More from FOXESS CO LTD

Other CEC-approved products from FOXESS CO LTD available in Australia.

FOXESS CO LTD Batteries

1K5-BAT-4660-L2

9.32 kWh · LFP

1K5-BAT-4660-L3

13.98 kWh · LFP

1K5-BAT-4660-L4

18.64 kWh · LFP

1K5-BAT-4660-L5

23.3 kWh · LFP

1K5-BAT-4660-L6

27.96 kWh · LFP

1K5-BAT-4660-L7

32.61 kWh · LFP

View all FOXESS CO LTD batteries

View full FOXESS 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 · FoxESS · T-G3 Series series · CEC approved March 2025

FoxESS T5-G3

CEC listing: T5-G3 (AS4777-2 2020)

A 5 kW three-phase solar inverter.

Installed in Perth, typical: ~$1,500; Estimate for the inverter alone — your quote will vary
Rated power: 5kW; 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 T-G3 Series 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 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.

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: 5kW
Max efficiency How much of the solar you make reaches the house: 98.0%
Phases Needs a three-phase supply — check your switchboard: 3-phase
MPPT trackers 2 roof faces can be tuned independently: 2
Type Runs solar only: Solar

Full datasheet

Every figure on file for the FoxESS T5-G3, by section.

Full datasheet, by section
Specification	Value
Power & output
Nominal power	5 kW
Maximum power	5 kW
Apparent power	5 kVA
Phases	3
Efficiency
Max efficiency	98%
European efficiency	97%
DC input & MPPT
MPPT trackers	2
Max input voltage	1100 V
MPPT voltage min	190 V
MPPT voltage max	1000 V
Max input current	14 A
Battery & backup
Battery compatible	No
Backup capable	No
Continuous backup	0 kW
Physical
Dimensions (H×W×D)	0 × 0 × 0 mm
IP rating	IP65
Cooling	Natural
Operating temperature	-25°C to 60°C
Installation requirements
AC breaker	25 A
Cable gauge	2.5 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

7 Mar 2025

Approval expiry

7 Mar 2028

Status

Active

Eligible for rebates

Yes

About FOXESS CO LTD

Years in AU Market

7 years

Australian Office

Yes

CEC-Approved Batteries

116

CEC-Approved Panels

What it costs in Perth

Typical installed, inverter only

$1,000–$2,000

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

Perth performance

Estimate for a full-size array on this inverter

Daily yield: 21.3 kWh
Annual yield: 7,756 kWh

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

Australian office

Has local presence

Website

au.fox-ess.com

7 years in Australian market

How it compares

The FoxESS T5-G3 against the closest-power inverters from other brands.

Specification	FoxESS T5-G3FoxESS	Energizer FORCE 5.0HSEnergizer	Energizer Force 5.0HT+Energizer

Rated power?	5 kW	5 kW	5 kW
Max efficiency?	98.0%best value	0.0%	0.0%
MPPT trackers?	2	Not verified	Not verified

Phases	Three-phase	Single-phase	Three-phase
Type	Solar	Hybrid	Hybrid
Battery ready	No	Yes	Yes
Warranty	0 years	Not verified	Not verified

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

Documents

Warranty summary

This warranty covers defects in materials and workmanship. It does not cover damages from non-accredited installations or modifications.

0-year inverter warranty

FoxESS T5-G3

This warranty covers defects in materials and workmanship. It does not cover damages from non-accredited installations or modifications.

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: Does not transfer with the home
What voids it: non-accredited installation, modifications
Environment limits: /null

Read the official warranty document (PDF)

Fault & error codes — FoxESS T5-G3

From the install manual

12 documented

Showing 12 of 12. The official install manual is the authoritative source — always confirm before acting.

Bus volt faultwarningCall your installer
Manual (PDF)
Bus voltage fault
Likely cause
PV system connection issue.
What to do
Disconnect PV(+), PV(-) using the DC switch, reconnect and check again.
DCI over rangewarningCall your installer
Manual (PDF)
DC input current over range
Likely cause
Exceeds input current specification.
What to do
Wait for one minute after reconnection and check voltage again.
EEprom faultwarningCall your installer
Manual (PDF)
EEPROM fault
Likely cause
Fault in the EEPROM module.
What to do
Disconnect PV(+), PV(-) using the DC switch, reconnect and check again.
GFCI faultwarningCall your installer
Manual (PDF)
Ground Fault Circuit Interrupter fault
Likely cause
Check on AC side equipment.
What to do
Disconnect DC and AC connector, check AC side equipment, reconnect and check again.
Grid freq faultwarningCall your installer
Manual (PDF)
Grid frequency fault
Likely cause
Grid frequency not within specifications.
What to do
Wait for one minute, check grid voltage and frequency, or seek help.
Grid lost faultwarningCall your installer
Manual (PDF)
Grid connection loss
Likely cause
Issues with grid connection.
What to do
Check grid connection and usability.
Grid volt faultwarningCall your installer
Manual (PDF)
Grid voltage fault
Likely cause
Grid voltage outside acceptable range.
What to do
Wait for one minute, check grid voltage and frequency, or seek help.
Grid10MinOVPwarningCall your installer
Manual (PDF)
Grid voltage over protection
Likely cause
Grid voltage spike.
What to do
System will reconnect automatically if grid returns to normal.
InconsistencywarningCall your installer
Manual (PDF)
Inconsistency fault
Likely cause
Issues with voltage reading.
What to do
Disconnect PV(+), PV(-) and check again after one minute.
ISO faultwarningCall your installer
Manual (PDF)
Isolation fault
Likely cause
Failure in insulation monitoring.
What to do
Check impedance among PV(+), PV(-) and ground.
SPS faultwarningCall your installer
Manual (PDF)
SPS fault
Likely cause
Disconnect of PV and grid.
What to do
Turn off the PV and grid, reconnect them.
V grid transientwarningCall your installer
Manual (PDF)
Voltage grid transient fault
Likely cause
Transient voltage event.
What to do
Disconnect PV(+), PV(-) using DC switch, reconnect and check again.

Part of the FoxESS T-G3 Series series

Compare every FoxESS T-G3 Series variant side by side →

More FOXESS CO LTD Inverters

1K5-1P-HI-10.5 (AS4777-2 2020)

10.5 kW · 1φ

1K5-1P-HI-10 (AS4777-2 2020)

10 kW · 1φ

1K5-1P-HI-3.7 (AS4777-2 2020)

3.68 kW · 1φ

1K5-1P-HI-4.6 (AS4777-2 2020)

4.6 kW · 1φ

1K5-1P-HI-5 (AS4777-2 2020)

5 kW · 1φ

1K5-1P-HI-6 (AS4777-2 2020)

6 kW · 1φ

View all FOXESS CO LTD inverters