SAJ H2-20K-T3
Description
Multi-pitch commercial tracking with zero DC current clipping.
SAJ H2-25K-T3 is a 25 kW commercial three-phase hybrid inverter delivering 27,500 VA maximum apparent power and 50 kWp solar intake across 3 independent 40 A MPPT channels, engineered for heavy commercial self-consumption and peak demand reduction.
50,000 Wp Heavy Solar Intake (200% Ratio)
Massive PV capacity powers heavy commercial operations all day while charging high-voltage battery banks at 50 A.
3 Independent 40 A MPPT Trackers
Eliminates string mismatch across 3 distinct warehouse roof pitches, accepting 6 strings of high-power bifacial modules.
27,500 VA Apparent Three-Phase Output (39.9 A)
Handles high inductive starting currents and sustained heavy machine loads across all three phases.
100% Phase Unbalanced Output
Dynamically diverts power to heavily loaded single-phase circuits without drawing expensive grid electricity.
More product details
Sprawling commercial roofs with 3 distinct pitch orientations suffer heavy mismatch losses if combined on fewer trackers. The H2-25K-T3 features 3 independent 40 A MPPT channels (Isc 50 A) to optimize 6 strings of modern 600W+ bifacial modules.
- 3 MPPT channels allow dedicated tracking for East, South, and West warehouse pitches with zero inter-string mismatch.
- Absorbs up to 50,000 Wp of solar generation, routing daytime power directly into facility loads and 50 A storage banks.
- Wide MPPT operating window (180–900 V) optimizes harvest across extreme temperature swings.
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4 models
Rated AC power
25 kW
30 kW
15 kW
20 kW
Phase
Three-phase
Three-phase
Three-phase
Three-phase
MPPT trackers
3
3
3
3
Max. efficiency
98.0 %
98.0 %
98.0 %
98.0 %
Battery voltage
180~800 V
180~800 V
180~800 V
180~800 V
Ingress protection
IP65
IP65
IP65
IP65
Weight
50 kg
50 kg
50 kg
50 kg
Dimensions
576*659*242 mm
576*659*242 mm
576*659*242 mm
576*659*242 mm
Faster battery charging with dynamic single-phase load compensation.
Featuring a heavy-duty 50 A battery interface (180–800 V) and 100% phase-unbalanced capability, the inverter charges storage rapidly while eliminating grid import penalties on asymmetric loads. 50 A charge/discharge throughput tops off 25–50 kWh battery stacks faster during brief midday solar peaks. Dynamically shifts up to 100% of capacity onto a single heavily loaded phase to prevent utility grid purchases. IP65 cast-aluminum casing allows clean indoor utility mounting or outdoor sheltered installation (-40 to +60 °C).
25 kW for heavier daytime bands.
When light C&I loads clear 20 kW for real hours, this head keeps the same DC and battery language with more AC and backup.
B2 path unchanged at the higher AC class.
Two ports, 50 A, 180-800 V LiFePO4 through BC2-HV1 - cluster sizing grows, the pairing sheet does not.
Technical data
Heavy-duty commercial energy management engineered for high-demand industrial electrification.
50 kWp solar intake with 27.5 kVA apparent power and 100% phase unbalance.
Purpose-built for energy-intensive commercial and agricultural enterprises, the H2-25K-T3 accepts up to 50,000 Wp of rooftop solar and delivers 25,000 W continuous (27,500 VA max) AC throughput. It dynamically offsets single-phase industrial load spikes to eliminate peak grid demand charges while pushing 50 A directly into high-voltage storage banks.
- Continuous 3-Phase Power
- 25,000 VA
- 200% Solar DC Intake
- 50,000 Wp
- High-Rate Battery Port
- 50 A
- High String Current
- 40 A / MPPT
Inverter
- Phase
- 3
- Topology
- Non-isolated
Solar Input
- Max. PV array power (Wp @STC)
- 45 kWp
- Max. DC voltage (V)
- 1000
- MPPT voltage range (V)
- 180 ~ 900
- Rated DC voltage (V)
- 600
- Max. DC input current (A)
- 40 / 40 / 40
- Max. DC short circuit current (A)
- 50 / 50 / 50
- Strings per MPP tracker
- 2 / 2 / 2
Battery
- Battery type
- LiFePO4
- Battery voltage range (V)
- 180 ~ 800
- Max. charging / discharging current (A)
- 50 / 50
- Number of battery inputs
- 2
Grid & Backup Output
- Rated AC power (W)
- 25 kW
- Max. apparent power (VA)
- 27.5 kVA
- Rated output current (A @230 Vac)
- 36.3
- Max. output current (A)
- 39.9
- Rated AC voltage (V)
- 3L+N+PE, 220/380, 230/400, 240/415; 180 ~ 280 / 312 ~ 485
- Rated output frequency / range (Hz)
- 50, 60 / 45 ~ 55, 55 ~ 65
- Peak output apparent power (VA)
- 37500, 3s
Efficiency
- Max. efficiency
- 98.0%
- Euro efficiency
- 97.6%
Physical
- Operating temperature range
- -40 C to +60 C (45 C and above with derating)
- Noise (dBA)
- <50
- Ingress protection
- IP65
- Dimensions (H x W x D mm)
- 576 x 659 x 242
- Weight (kg)
- 50
- Warranty (year)
- 10
Project fit
Where this model fits.
Scenarios that show which projects the SAJ H2-25K-T3 belongs in, what to verify before quoting, and when another model is the better pick.
Project scenario
Commercial Manufacturing & Agricultural Enterprises (35–50 kWp Solar)
Metal fabrication workshops, grain processing facilities, or cold storage plants running three-phase machinery and multi-split heat pumps.
25 kW continuous AC output handles heavy equipment startup inrush, while 50 kWp solar intake ensures rapid battery charging and full daytime self-consumption.
What Linker confirms with you
- Confirm this model against the adjacent rating in the same family
Documents
SAJ H2 10-30K Three Phase Hybrid Inverter datasheet (Europe, EN) SAJ H2 Series (10-30K) T2/T3 Datasheet (EN, BEU)Product questions
What size AC circuit breaker and cable cross-section are required for the H2-25K-T3?
50 A or 63 A 3-pole industrial circuit breaker; 5 × 16 mm² copper cable. The H2-25K-T3 delivers a nominal continuous output current of 36.2 A per phase (max output current 39.9 A @ 400 V). A 3-pole 50 A or 63 A industrial circuit breaker (MCB/MCCB) on the main distribution panel is standard for European installations.
Can the H2-25K-T3 handle unbalanced single-phase machinery in a workshop?
Yes. 100% phase-unbalanced output shifts power to loaded phases. If a commercial workshop draws 10 kW on Phase L1 and only 2 kW each on L2 and L3, the H2-25K-T3 dynamically directs internal inverter power to supply 10 kW directly on L1, keeping net grid electricity import at zero and eliminating peak demand fees.
System components
Recommended components
SAJ B2 HV battery system (BC2-HV1 control unit + BU2-5.0-HV1/HV5 modules, 5.0–25.0 kWh stackable)
Item number: DLK-SAJ-B2100HV1
SAJ's H2/HS2/HS3/AS2/AS3 Configuration Instructions V1.0, Section 2, names 'H2 series storage inverter and BU2 series battery; or BC2 series battery control unit' as the required device set for H2.
Chint DTSU666 three-phase meter
Item number: DLK-CHINT-DTSU666
Same DTSU666 model SAJ specifies in its own accessories catalogue (saj_smart_meters_dtsu666_en.pdf) for smart-meter/CT integration on three-phase systems.
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 H2-15/20/25/30K-T3 by name.
Approved pairings
SAJ B2-10.0-HV1Item number DLK-SAJ-B2100HV1B2-5.0-HV1 to B2-25.0-HV1 and B2-5.0-HV5 to B2-25.0-HV5, through the BC2-HV1 control module. SAJ's Configuration Instructions V1.0 state the system as H2 plus BC2 plus BU2. CAVEAT: the signed statement is SAJ's Oceania issue and names the -AU model variants. Ask SAJ to confirm the EU and DE variants in writing before a first order.
SAJ B2-10.0-HV5Item number DLK-SAJ-B2100HV5B2-5.0-HV1 to B2-25.0-HV1 and B2-5.0-HV5 to B2-25.0-HV5, through the BC2-HV1 control module. SAJ's Configuration Instructions V1.0 state the system as H2 plus BC2 plus BU2. CAVEAT: the signed statement is SAJ's Oceania issue and names the -AU model variants. Ask SAJ to confirm the EU and DE variants in writing before a first order.
SAJ B2-15.0-HV1Item number DLK-SAJ-B2150HV1B2-5.0-HV1 to B2-25.0-HV1 and B2-5.0-HV5 to B2-25.0-HV5, through the BC2-HV1 control module. SAJ's Configuration Instructions V1.0 state the system as H2 plus BC2 plus BU2. CAVEAT: the signed statement is SAJ's Oceania issue and names the -AU model variants. Ask SAJ to confirm the EU and DE variants in writing before a first order.
SAJ B2-15.0-HV5Item number DLK-SAJ-B2150HV5B2-5.0-HV1 to B2-25.0-HV1 and B2-5.0-HV5 to B2-25.0-HV5, through the BC2-HV1 control module. SAJ's Configuration Instructions V1.0 state the system as H2 plus BC2 plus BU2. CAVEAT: the signed statement is SAJ's Oceania issue and names the -AU model variants. Ask SAJ to confirm the EU and DE variants in writing before a first order.
SAJ B2-20.0-HV1Item number DLK-SAJ-B2200HV1B2-5.0-HV1 to B2-25.0-HV1 and B2-5.0-HV5 to B2-25.0-HV5, through the BC2-HV1 control module. SAJ's Configuration Instructions V1.0 state the system as H2 plus BC2 plus BU2. CAVEAT: the signed statement is SAJ's Oceania issue and names the -AU model variants. Ask SAJ to confirm the EU and DE variants in writing before a first order.
SAJ B2-20.0-HV5Item number DLK-SAJ-B2200HV5B2-5.0-HV1 to B2-25.0-HV1 and B2-5.0-HV5 to B2-25.0-HV5, through the BC2-HV1 control module. SAJ's Configuration Instructions V1.0 state the system as H2 plus BC2 plus BU2. CAVEAT: the signed statement is SAJ's Oceania issue and names the -AU model variants. Ask SAJ to confirm the EU and DE variants in writing before a first order.
SAJ B2-25.0-HV1Item number DLK-SAJ-B2250HV1B2-5.0-HV1 to B2-25.0-HV1 and B2-5.0-HV5 to B2-25.0-HV5, through the BC2-HV1 control module. SAJ's Configuration Instructions V1.0 state the system as H2 plus BC2 plus BU2. CAVEAT: the signed statement is SAJ's Oceania issue and names the -AU model variants. Ask SAJ to confirm the EU and DE variants in writing before a first order.
SAJ B2-25.0-HV5Item number DLK-SAJ-B2250HV5B2-5.0-HV1 to B2-25.0-HV1 and B2-5.0-HV5 to B2-25.0-HV5, through the BC2-HV1 control module. SAJ's Configuration Instructions V1.0 state the system as H2 plus BC2 plus BU2. CAVEAT: the signed statement is SAJ's Oceania issue and names the -AU model variants. Ask SAJ to confirm the EU and DE variants in writing before a first order.
SAJ B2-5.0-HV1Item number DLK-SAJ-B250HV1B2-5.0-HV1 to B2-25.0-HV1 and B2-5.0-HV5 to B2-25.0-HV5, through the BC2-HV1 control module. SAJ's Configuration Instructions V1.0 state the system as H2 plus BC2 plus BU2. CAVEAT: the signed statement is SAJ's Oceania issue and names the -AU model variants. Ask SAJ to confirm the EU and DE variants in writing before a first order.
SAJ B2-5.0-HV5Item number DLK-SAJ-B250HV5B2-5.0-HV1 to B2-25.0-HV1 and B2-5.0-HV5 to B2-25.0-HV5, through the BC2-HV1 control module. SAJ's Configuration Instructions V1.0 state the system as H2 plus BC2 plus BU2. CAVEAT: the signed statement is SAJ's Oceania issue and names the -AU model variants. Ask SAJ to confirm the EU and DE variants in writing before a first order.
SAJ BC2-HV1Item number DLK-SAJ-BC2HV1B2-5.0-HV1 to B2-25.0-HV1 and B2-5.0-HV5 to B2-25.0-HV5, through the BC2-HV1 control module. SAJ's Configuration Instructions V1.0 state the system as H2 plus BC2 plus BU2. CAVEAT: the signed statement is SAJ's Oceania issue and names the -AU model variants. Ask SAJ to confirm the EU and DE variants in writing before a first order.
SAJ BU2-5.0-HV1Item number DLK-SAJ-BU250HV1B2-5.0-HV1 to B2-25.0-HV1 and B2-5.0-HV5 to B2-25.0-HV5, through the BC2-HV1 control module. SAJ's Configuration Instructions V1.0 state the system as H2 plus BC2 plus BU2. CAVEAT: the signed statement is SAJ's Oceania issue and names the -AU model variants. Ask SAJ to confirm the EU and DE variants in writing before a first order.
SAJ BU2-5.0-HV5Item number DLK-SAJ-BU250HV5B2-5.0-HV1 to B2-25.0-HV1 and B2-5.0-HV5 to B2-25.0-HV5, through the BC2-HV1 control module. SAJ's Configuration Instructions V1.0 state the system as H2 plus BC2 plus BU2. CAVEAT: the signed statement is SAJ's Oceania issue and names the -AU model variants. Ask SAJ to confirm the EU and DE variants in writing before a first order.
SAJ CB3-HVCItem number DLK-SAJ-CB3HVCB2-5.0-HV1 to B2-25.0-HV1 and B2-5.0-HV5 to B2-25.0-HV5, through the BC2-HV1 control module. SAJ's Configuration Instructions V1.0 state the system as H2 plus BC2 plus BU2. CAVEAT: the signed statement is SAJ's Oceania issue and names the -AU model variants. Ask SAJ to confirm the EU and DE variants in writing before a first order.
SAJ CB3-L261Item number DLK-SAJ-CB3L261B2-5.0-HV1 to B2-25.0-HV1 and B2-5.0-HV5 to B2-25.0-HV5, through the BC2-HV1 control module. SAJ's Configuration Instructions V1.0 state the system as H2 plus BC2 plus BU2. CAVEAT: the signed statement is SAJ's Oceania issue and names the -AU model variants. Ask SAJ to confirm the EU and DE variants in writing before a first order.
SAJ CB3-M20Item number DLK-SAJ-CB3M20B2-5.0-HV1 to B2-25.0-HV1 and B2-5.0-HV5 to B2-25.0-HV5, through the BC2-HV1 control module. SAJ's Configuration Instructions V1.0 state the system as H2 plus BC2 plus BU2. CAVEAT: the signed statement is SAJ's Oceania issue and names the -AU model variants. Ask SAJ to confirm the EU and DE variants in writing before a first order.
