SAJ

CH3-125K-T8

Item number: DLK-SAJ-CH3125KT8

Rated AC power: 125 kW
Max. efficiency: ≥98 %
Battery voltage: 750-950 V
Ingress protection: IP66

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Orderable · lead time confirmed after order

Germany delivery estimate: €65.00 to €200.00 · The final delivery charge is included in your Proforma.

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Plan with CH3-125K-T8

New system, extension or replacement? Linker Advisor starts from this model and asks only for what is still open (existing model, quantity, postcode, installation date).

Description

Longer strings. Fewer DC home-runs.

187.5 kWp solar intake with 125 kW continuous output. The maximum SAJ commercial capacity.

125 kW Continuous Output (189.9 A)
Highest continuous throughput in the CH3 range, driving heavy manufacturing machinery and fleet charging hubs.
187.5 kWp High-Density DC Solar Intake
Captures immense daytime solar energy across large-scale industrial rooftops and ground mounts.
8 MPPT Trackers with 16 String Inputs
Unmatched layout flexibility for complex commercial roofs without inter-string current mismatches.
125 kVA Full Facility Emergency Backup
Sustains complete commercial facility operations and critical production machinery during utility grid failures.

More product details

1500 V MPPT is why a C&I roof on this platform uses fewer combiner runs than a 1000 V design. 8 trackers take 16 strings. 200 A into a 750-950 V LFP window. IP66, smart air cooling from -30 C to +60 C, 135 kg.

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4 models

SAJ CH3-125K-T8

This model

SAJ CH3-99.9K-T8

SAJ CH3-100K-T8

SAJ CH3-110K-T8

Rated AC power

125 kW

99.9 kW

100 kW

110 kW

Max. efficiency

≥98 %

Battery voltage

750-950 V

Ingress protection

IP66

Weight

135 kg

Dimensions

1027*895*342 mm [H*W*D]

View full technical data

Backup in under 20 ms.

STS is built in. When the grid drops, the site stays up without waiting on a separate transfer-switch cabinet.

CB3 is the listed battery.

CB3-L261 or CB3-M20 modules behind the CB3-HVC, 60 to 260 kWh per cluster, 200 A into 750-950 V LFP.

250 kWp of PV on a 125 kW hybrid.

200% oversizing puts 250 kWp on this 125 kW unit, so the roof can grow on this hybrid.

1500 V strings.

Longer runs than a 1000 V design, fewer DC home-runs on a commercial roof.

Technical data

SAJ CH3 125K T8

187.5 kWp solar intake with 125 kW continuous output. The maximum SAJ commercial capacity.

Maxing out SAJ's commercial hybrid inverter range, the CH3-125K-T8 delivers 125 kW continuous AC power (137.5 kVA max) and processes up to 187,500 Wp of rooftop solar. It combines 8 MPPT trackers with a 150 A battery interface, providing the foundation for megawatt-hour commercial storage projects.

Highest continuous throughput in the CH3 range, driving heavy manufacturing machinery and fleet charging hubs.: 125 kW Continuous Output (18
Captures immense daytime solar energy across large-scale industrial rooftops and ground mounts.: 187.5 kWp High-Density DC So
Unmatched layout flexibility for complex commercial roofs without inter-string current mismatches.: 8 MPPT Trackers with 16 Stri
Sustains complete commercial facility operations and critical production machinery during utility grid failures.: 125 kVA Full Facility Emerge

Power & Config

Type: 1500 V DC C&I hybrid inverter, CH3 Series
Phase: 3
Topology: Transformerless
Battery type: LFP
Rated AC power (kW): 125
Rated / max. output current (A @230V): 189.9 / 189.9

Solar Input

Max. PV array power (kWp @STC): 250
Max. DC voltage (V): 1500
MPPT voltage range (V): 300 ~ 1500
Rated DC voltage (V): 1050
Max. DC input current (A): 40
Max. DC short circuit current (A): 55
Number of strings per MPPT: 8*2
String-level disconnector: Integrated

Battery & Charge

Battery type: LFP
Battery voltage range (V): 750 ~ 950
Max. charging / discharging current (A): 200

Backup & Grid Output

Max. apparent power (kVA): 125
Rated / max. output current (A @230V): 189.9 / 189.9
Rated output frequency (Hz): 50 / 60
Max. backup output power (kVA): 125
Peak backup apparent power: 1.1 x rated continuous, 1.55 x rated for 1 s
Max. generator input power (kW): 250
Max. generator input current (A @230V): 379.8

Efficiency

Max. efficiency: >=98%
Euro efficiency: >=97.5%
Max. battery to AC efficiency: >=98%

Physical & Environment

Dimensions (H x W x D mm): 1027 x 895 x 342
Weight (kg): 135
Ingress protection: IP66
Cooling method: Smart air cooling
Operating temperature range: -30 C to +60 C (45 C to 50 C with derating)
Altitude (m): 3000
Warranty (year): 5 / 10

Project fit

Where this model fits.

Scenarios that show which projects the SAJ CH3-125K-T8 belongs in, what to verify before quoting, and when another model is the better pick.

Project scenario

Peak shaving at the top of the CH3 range

A factory, warehouse or commercial roof whose peaks sit around 125 kW, with spare array area and a three-phase connection that can take 189.9 A.

This is the CH3 that puts 250 kWp of PV on a single 125 kW hybrid: peak-shave, self-consume, and keep the site up from one unit.

250 kWp of PVtwice the 125 kW AC rating, so the roof can grow on this unit.
1500 V stringslonger runs than a 1000 V design, fewer DC home-runs.
Built-in STSbackup switches in under 20 ms.
16 strings on 8 MPPTsmixed-orientation C&I roofs stay on one hybrid.

What Linker confirms with you

Transformer and connection capacity for 189.9 A of added feed-in, which is the real gate on this unit
Cluster capacity sized from plateau length rather than peak height - at this rating a short cluster wastes the head
Cooling position, because derating from 45 C costs most where the array is biggest
Whether the site's growth curve will pass 125 kW within the plant's life, since that is a CHS cabinet conversation rather than a bigger wall unit

Project scenario

A 250 kWp field feeding the works first

A quarter-megawatt array should run the plant rather than the export meter. At this size the battery cabinet and the DC plan belong in the same drawing from the first sketch.

SAJ lists one battery path against the CH3 series: CB3-L261 or CB3-M20 modules behind the CB3-HVC controller. That is the cluster this 125 kW head is built to run.

Listed batteryCB3-L261 cabinet or CB3-M20 modules behind the CB3-HVC.
Cluster size60 to 260 kWh on a 750-950 V LFP window.
200 A charge and dischargethe same battery interface from 75 kW to 125 kW.

What Linker confirms with you

Cluster and string plan drawn together, with the CB3-HVC as its own order line rather than an afterthought
One grid enquiry covering PV and storage - at this size a split submission adds a quarter to the schedule
Mounting position and cooling reserve, priced into the yield rather than discovered in July
Any non-CB3 pack held until SAJ answers in writing; the platform will not take it on assumption

Model choice

125 or 110: can the connection use the last 15 kW?

From the top unit's side the honest question is not whether the inverter can deliver 125 kW, but whether the site's connection can take it.

The 125K carries 189.9 A against the 110K's 167.1 A, and 250 kWp against 220 kWp. The chassis, the 8 trackers and the battery window do not change.

189.9 A vs 167.1 Anearly 23 A more on every phase.
PV ceiling250 kWp vs 220 kWp.
Same chassis, same 8 trackersthe step is current and roof, not a new install.

What Linker confirms with you

The connection's amp reserve, before the ceiling unit gets quoted at all
The roof program as it will actually be built, against 250 versus 220 kWp
Both units priced with their connection consequences attached, not as two inverter line items

See the numbers side by side ↓ Compare the sibling model

Documents

SAJ CH3 and CB3 Series 75-125 kW datasheet (EN) Datasheet · PDF · EN

Product questions

Is the CH3-125K-T8 the same machine as the CHS3 kit?

No - this SKU is the inverter on its own. The CHS3 is the same inverter delivered with a CB3-L261 cabinet behind it, which is a different order, a different price and a different delivery. What this page sells is the head; the storage is specified separately.

This unit: 125 kW / 125 kVA, 189.9 A, 250 kWp.
Storage side: CB3-L261 or CB3-M20 behind a CB3-HVC cabinet, 60 to 260 kWh per cluster.

What generator input does the CH3-125K-T8 take?

250 kW at 379.8 A - twice the inverter's rating, on a dedicated input, the same ratio the whole CH3 range holds. At this size that usually means an existing site generator can stay where it is instead of being re-specified around the storage.

Backup alongside: 125 kVA continuous.
One step down: the 110K-T8 takes 220 kW at 334.2 A.

How much PV can the CH3-125K-T8 take?

250 kWp at STC on sixteen strings - double the AC rating, and the largest DC field this platform carries. Beyond it a project grows by adding units or by moving to SAJ's CHS cabinet systems, because the wall-mounted range ends here.

Per tracker: 40 A, 55 A short-circuit, 300 to 1500 V, 1500 V DC maximum.
Service: string-level disconnector integrated.

What hangs on the wall for a CH3-125K-T8?

135 kg on a 1027 x 895 x 342 mm frame - the same as the 75 kW unit at the other end of the range. At 125 kW that is the headline rather than a footnote: the biggest CH3 still arrives as a wall unit, not as a cabinet with a floor plan.

Climate: IP66, smart air cooling, -30 C to +60 C, derating from 45 C to 50 C, up to 3000 m.
Warranty: 5 or 10 years.

System components

Required components

SAJ CB3-HVC cluster control / BMS unit

Item number: DLK-SAJ-CB3HVC

CB3-M20's own live spec sheet: 'Control module = CB3-HVC (required, sold separately)'.

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Recommended components

SAJ CB3-M20 stackable module or CB3-L261 liquid-cooled cabinet (60–260 kWh per cluster)

Item number: DLK-SAJ-CB3M20

SAJ's CH3 + CB3 datasheet, verbatim: 'The battery is compatible with SAJ CH2 and CH3 series inverters,' 60 to 260 kWh per cluster.

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