SAJ HS3-10K-T2-W/G-PX
Description
Maximum three-phase power delivery in an ultra-slim column.
SAJ HS3-12K-T2-W/G-PX is the flagship 12 kW three-phase All-in-One modular hybrid inverter unit delivering 24 kWp solar intake and 17.4 A continuous current, engineered to power luxury residences, workshops, and multi-zone heat pumps in a slim 17 cm column.
12,000 W Continuous Three-Phase Power (17.4 A)
Maximum continuous throughput in the HS3 range, effortlessly running multiple heat pumps and EV chargers.
24,000 W Solar PV Input (200% Oversizing)
Double solar capacity captures immense daytime energy across large residential and workshop roofs.
20 A High-Current Dual MPPTs (Isc 25 A), 100% compatible with modern 600W+ high-power bifacial panels with zero DC current clipping.
Ultra-Slim 17 cm Column Depth
Furniture-grade vertical column hugs residential garage and utility room walls closely with zero exposed wiring.
More product details
Built for large electrified residences and domestic workshops, the HS3-12K delivers 17.4 A continuous current across L1, L2, and L3, powering multiple high-draw appliances without utility grid purchases.
- Delivers 12,000 VA continuous three-phase power on both grid and emergency backup outputs.
- Sub-10 ms automatic transfer ensures zero computer reboots or smart home controller resets.
- Symmetrical three-phase power export complies natively with European grid regulations.
HS3
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4 models
Rated AC power
12 kW (11 kW for Ireland variant)
6 kW
8 kW
10 kW
Phase
3L+N+PE
3L+N+PE
3L+N+PE
3L+N+PE
MPPT trackers
2
2
2
2
Max. efficiency
98.0 %
98.0 %
98.0 %
98.0 %
Battery voltage
380-500 V
380-500 V
380-500 V
380-500 V
Ingress protection
IP65
IP65
IP65
IP65
Weight
34 kg, inverter only
34 kg, inverter only
34 kg, inverter only
34 kg, inverter only
Dimensions
450*695*170 mm (H*W*D), inverter only
450*695*170 mm (H*W*D), inverter only
450*695*170 mm (H*W*D), inverter only
450*695*170 mm (H*W*D), inverter only
20 A high-current tracking with 200% solar oversizing.
Sized to absorb generation from extensive multi-aspect residential roofs, the HS3-12K captures high solar yields while mounting directly atop high-density battery modules with internal busbars. Dual 20 A MPPT channels optimize multi-pitch residential stringing without current clipping. Wide MPPT window (180–900 V) optimizes harvest across extreme seasonal temperature swings. IP65 cast-aluminum casing certified for clean indoor or sheltered outdoor installations (-40 to +60 °C).
15 kVA peak for 60 seconds.
Short overload headroom above the 12 kW continuous backup rating when the grid drops.
30 A into BU3.
Battery discharge matches the 10K while AC and backup step to 12 kW.
Technical data
The apex All-in-One residential energy hub engineered for heavy domestic electrification.
24 kWp solar capacity with 12 kW continuous three-phase output in a modular tower.
Maxing out SAJ's HS3 All-in-One residential lineup, the HS3-12K-T2-W/G-PX delivers 12,000 W continuous AC output across 3 balanced phases. It processes up to 24,000 Wp of solar input, stacking directly on modular 5 kWh BU3 battery bricks to provide high-power heating, vehicle charging, and whole-home emergency power in a single vertical column.
- Continuous 3-Phase Power
- 12,000 VA
- 200% Solar DC Intake
- 24,000 Wp
- High String Current
- 20 A / MPPT
- External DC Conduits
- Zero
Inverter
- Series
- HS3
- Kw
- 12
- Phase
- 3
- Bat kwh
- 5-40
Solar Input
- MPPT trackers
- 2 MPPT
- Max a mppt
- 20
Battery
- Bat module
- BU3-5.0-TV2-PRO
- Bat kwh
- 5-40
Physical
- Depth mm
- 170
- Heating
- Yes
- IP rating
- IP65
- Operating temperature
- -30 to +50
Project fit
Where this model fits.
Scenarios that show which projects the SAJ HS3-12K-T2-W/G-PX belongs in, what to verify before quoting, and when another model is the better pick.
Project scenario
Large Estates & Multi-Family Homes (16–24 kWp PV) with Heavy Electrification
Luxury single-family properties with extensive daily electricity consumption (multi-zone heat pumps, EV wallboxes, induction cooking).
12 kW continuous AC throughput provides the power needed to run heavy loads simultaneously, while 24 kWp solar intake ensures fast battery replenishment on short winter days.
- BoundaryIf total solar array size is under 18 kWp and continuous household load stays under 10 kW, step down to the HS3-10K to save capital cost. ---
What Linker confirms with you
- If total solar array size is under 18 kWp and continuous household load stays under 10 kW, step down to the HS3-10K to save capital cost. ---
Documents
SAJ HS3 5-12K T2 Three-Phase Battery Storage Datasheet (EN, 2025-06) SAJ HS3 Three-Phase All-in-One Datasheet (EN) SAJ HS3 (3K-12K) T2 Three-Phase ESS User Manual (EN, EU)Product questions
What size AC circuit breaker is required for the HS3-12K?
3-pole 25 A or 32 A MCB; 5 × 4 mm² to 5 × 6 mm² copper cable. The HS3-12K delivers a nominal continuous output current of 17.4 A per phase at 400 V three-phase. A 3-pole 25 A or 32 A miniature circuit breaker (MCB) is standard for European installations.
Are there any regional power de-rating footnotes for the 12 kW model?
In Ireland, power is capped at 11 kW / 15.9 A per local grid code. Per European datasheet footnotes, in jurisdictions with strict micro-generation export limits (such as Ireland), the unit operates with a software cap of 11.0 kW / 15.9 A to maintain full utility compliance.
System components
Recommended components
SAJ BU3-5.0-TV2-PRO battery modules (up to 8, 5.0–40.0 kWh)
Item number: DLK-SAJ-BU350TV2PRO
SAJ's HS3 datasheet scalability row: 'BU3-5.0-TV2-PRO, up to 8 battery modules.' HS3 does not take the BU2 (SAJ's own Configuration Instructions confirm the HS2-only BU2 pairing separately).
Chint DTSU666 three-phase meter
Item number: DLK-CHINT-DTSU666
Same DTSU666 model SAJ specifies in its own accessories catalogue; HS3 is a three-phase unit.
Optional components
SAJ ATS1-T63-A automatic transfer switch (three-phase, 63A)
Item number: DLK-SAJ-ATS1T63A
ATS1's own datasheet compatible-inverter row lists HS3-5/6/8/10/12K-T2-W/4G-EX by name.