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Hybrid inverter · SAJ · H2 series · CEC approved April 2026
CEC listing: H2-5K-S2 (AS4777-2 2020)
A 5 kW single-phase hybrid inverter that is battery-ready.
SAJ's H2 hybrid inverters sit in the mid-range price tier. SAJ (Guangzhou Sanjing Electric) brings power-electronics engineering into residential solar, and the H2 supports both low-voltage and high-voltage battery configurations. The eSolar platform reports live performance data. For Perth installs, the H2 is a WA-compliant hybrid at pricing between the budget and premium tiers.
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
Max efficiency
How much of the solar you make reaches the house
Phases
Runs on a standard single-phase supply
MPPT trackers
3 roof faces can be tuned independently
Type
Runs solar and a battery from one unit
Warranty
How long Guangzhou Sanjing Electric Co Ltd stands behind it
Every figure on file for the SAJ H2-5K-S2, by section.
| Specification | Value |
|---|---|
| Efficiency | |
| Max efficiency | 97.6% |
| DC input & MPPT | |
| MPPT trackers | 3 |
| Physical | |
| IP rating | IP65 |
| Installation requirements | |
| Top clearance | 200 mm |
| Side clearance | 200 mm |
| AC breaker | 100 A |
| Cable gauge | 16 mm² |
| Earthing method | MEN |
| 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.
Battery compatible
Yes
Backup capable
Yes
CEC approved
16 Apr 2026
Approval expiry
16 Apr 2029
Status
Active
Eligible for rebates
Yes
Years in AU Market
8 years
Australian Office
Not verified
CEC-Approved Batteries
34
CEC-Approved Panels
0
Category
Mid-Tier
Typical installed, inverter only
$1,750–$2,999
Prices vary by installer, configuration and site complexity. Get exact quotes from installers you choose.
Compare quotes from installers you choose
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.
Estimate for a full-size array on this inverter
At 5 peak sun hours a day (BOM) with a 15% system derate.
Website
www.saj-electric.comThe SAJ H2-5K-S2 against the closest-power inverters from other brands.
| Specification | SAJ H2-5K-S2SAJ | Cornick Genius IA5Cornick | Hinen A5000SHinen |
|---|---|---|---|
| Rated power? | 4.999 kW | 4.999 kW | 4.999 kW |
| Max efficiency? | 97.6%best value | 0.0% | 0.0% |
| MPPT trackers? | 3 | Not verified | Not verified |
| Phases | Single-phase | Single-phase | Single-phase |
| Type | Hybrid | Solar | Hybrid |
| Battery ready | Yes | No | Yes |
| Warranty | 5 years | Not verified | Not verified |
Specs from the CEC register and datasheet enrichment. Indicative — confirm exact figures with your installer.
This warranty covers 5 years of service against defects; it is void if the product is modified or not installed by professionals. To claim, visit our website for instructions.
AI-summarised from the manufacturer warranty document. Always confirm against the linked PDF before relying on it for a claim.
From the install manual
Showing 10 of 10. The official install manual is the authoritative source — always confirm before acting.
1criticalCall your installerMaster Relay Error
13criticalCall your installerMaster Phase3 Voltage High
2criticalCall your installerMaster EEPROM Error
3criticalCall your installerMaster Temperature High Error
31criticalCall your installerISO Error
9criticalCall your installerMaster Phase1 Voltage High
4warningCall your installerMaster Temperature Low Error
5warningCall your installerLost Communication M<->S
6warningCall your installerGFCI Device Error
96warningCall your installerBattery Discharge Voltage Low
Part of the SAJ H2 series
Compare every SAJ H2 variant side by side →
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
Other CEC-approved products from Guangzhou Sanjing Electric Co Ltd available in Australia.
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.