Description

SAJ H2-25K-T3 is a three-phase hybrid inverter with 25,000 W rated AC power and 27,500 VA maximum apparent power. It has three MPPTs for up to 45,000 Wp of PV, two battery inputs for 180–800 V LiFePO4 batteries and a backup output.

SAJ H2-25K-T3

  • PV array power up to 45,000 Wp (STC) on three MPPTs with two strings each.

  • 40 A maximum DC input current and 50 A maximum short-circuit current per MPPT.

  • Backup output with 25,000 VA and a peak of 37,500 VA for 3 s.

  • Supplied with the eSolar AIO3 communication module, a smart meter and three current transformers.

Three MPPTs with 40 A each.

Each of the three MPPTs takes two strings, with 40 A maximum DC input current and 50 A maximum short-circuit current per MPPT. The MPPT voltage range is 180–900 V, the maximum DC voltage 1000 V and the start voltage 180 V.

Backup output with a switch-over time of ≤ 20 ms.

The backup output supplies up to 25,000 VA and a peak apparent power of 37,500 VA for 3 s; the switch-over time to backup is ≤ 20 ms. The backup function needs a properly grounded backup PE line and earthing bar.

Two battery inputs for 180–800 V.

SAJ

Two battery inputs for 180–800 V.

The inverter has two battery inputs (BAT1 and BAT2) for LiFePO4 batteries with a battery voltage range of 180–800 V and a maximum charge and discharge current of 50 A. The SAJ B2 high-voltage battery is used as a set with the H2; the B2's own maximum charge and discharge current is 30 A.

Technical data

Main figures of the H2-25K-T3

Rated AC power
25,000 W
Max. PV array power
45,000 Wp
Max. battery charge / discharge current
50 A
Max. DC input current
40 A / MPPT
About these specifications

25,000 W rated AC power, 45,000 Wp PV, three MPPTs.

The H2-25K-T3 delivers 25,000 W rated AC power and 27,500 VA maximum apparent power on a three-phase grid, with a rated output current of 36.3 A at 230 V AC and a maximum output current of 39.9 A. In backup operation it supplies up to 25,000 VA.
PV input
Max. PV array power
45000 Wp
at STC
Max. DC voltage
1000 V
MPPT voltage range
180–900 V
Rated DC voltage
600 V
Start voltage
180 V
Max. DC input current per MPPT
40 / 40 / 40 A
Max. DC short-circuit current per MPPT
50 / 50 / 50 A
Number of MPPTs
3
Strings per MPPT
2 / 2 / 2

Documents

SAJ H2 Series (10-30K) T2/T3 Datasheet (EN, BEU)Datasheet · PDF · ENSAJ H2 15-30K datasheet, German (covers the H2-25K-T3)Datasheet · PDF · DESAJ H2-(10K-30K)-(T2, T3) Hybrid Solar Inverter User Manual (DE/EN)Manual · PDF · DESAJ configuration instructions for H2, HS2 and HS3 systems, English, V1.0Manual · PDF · ENEU declaration of conformity for the SAJ H2 inverters, 13 languages including English and German (names the H2-25K-T3)Certificate · PDF · EN/DE

Product questions

What does the H2-25K-T3 package contain?

The packaging list covers the H2 inverter, a mounting bracket, PV connectors (T3*6 x2, T2*4 x2), pluggable terminal blocks (2-pin x2, 3-pin x1, 6-pin x1), a waterproof communication terminal cover, positive and negative battery connectors (x2 each), an AC terminal, M6*50 screw suite x4, a waterproof AC terminal cover, an eSolar AIO3, a smart meter, three current transformers, a meter COMM cable (10 m), RJ45 plugs x10, and documents (user manual, quick installation guide, warranty card, packaging list).

Which circuit breaker and AC cable does the H2-25K-T3 need?

For the H2-(25K-30K)-T3 the recommended breaker specification is 63 A. Do not connect multiple inverters to one AC circuit breaker. The AC cable cross-sectional area for H2-(10K-30K)-(T2,T3) is 10 - 16 mm², recommended 16 mm². The additional grounding cable cross-sectional area is 8 mm².

Compatibility records

SAJ B2-10.0-HV1SAJ B2-10.0-HV1Item number DLK-SAJ-B2100HV1Documented by SAJSAJ B2-15.0-HV1SAJ B2-15.0-HV1Item number DLK-SAJ-B2150HV1Documented by SAJSAJ B2-20.0-HV1SAJ B2-20.0-HV1Item number DLK-SAJ-B2200HV1Documented by SAJSAJ B2-25.0-HV1SAJ B2-25.0-HV1Item number DLK-SAJ-B2250HV1Documented by SAJSAJ BC2-HV1SAJ BC2-HV1Item number DLK-SAJ-BC2HV1Documented by SAJSAJ BU2-5.0-HV1SAJ BU2-5.0-HV1Item number DLK-SAJ-BU250HV1Documented by SAJ

SAJ's Configuration Instructions V1.0 (Section 2) give the H2 series system as H2 + BC2 + BU2. SAJ's B2 datasheet names B2-5.0 to B2-25.0 as one to five BU2-5.0 modules with one BC2-HV1 control module, and SAJ's B2 manual (V1.2, PDF p5) says the B2 can only be used as a set with SAJ's H2 high voltage series storage inverter. The listing does not cover the one-module B2-5.0, whose operating voltage lies below the H2 T3's battery voltage range. SAJ's B2 datasheet gives 179.2 to 230.4 V for the two-module B2-10.0; the H2 T3 manual's battery voltage range begins at 180 V.

SAJ's Configuration Instructions V1.0 (Section 2) give the H2 series system as H2 + BC2 + BU2. SAJ's B2 datasheet names B2-5.0 to B2-25.0 as one to five BU2-5.0 modules with one BC2-HV1 control module, and SAJ's B2 manual (V1.2, PDF p5) says the B2 can only be used as a set with SAJ's H2 high voltage series storage inverter. The listing does not cover the one-module B2-5.0, whose operating voltage lies below the H2 T3's battery voltage range.

SAJ's Configuration Instructions V1.0 (Section 2) give the H2 series system as H2 + BC2 + BU2. SAJ's B2 datasheet names B2-5.0 to B2-25.0 as one to five BU2-5.0 modules with one BC2-HV1 control module, and SAJ's B2 manual (V1.2, PDF p5) says the B2 can only be used as a set with SAJ's H2 high voltage series storage inverter. The listing does not cover the one-module B2-5.0, whose operating voltage lies below the H2 T3's battery voltage range. One BU2-5.0 module alone operates at 89.6 to 115.2 V (SAJ's B2 datasheet gives this for the one-module B2-5.0), below the H2 T3's battery voltage range of 180 to 800 V; two modules operate at 179.2 to 230.4 V.

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