SAJ CB3-L261
SAJ CB3-L261 is a 261 kWh liquid-cooled battery cabinet for C&I storage, built on LFP 3.2 V / 314 Ah cells in a 1P52S x 5S configuration.
- ≥97.5% Euro efficiency and ≥98% max efficiency (SAJ's published minimum figures) across the CH3 75–125 kW range.
- IP66 chassis, -30°C to +60°C operating range, and smart air cooling for outdoor plant-room installs.
- CB3 battery scales from a single 20.096 kWh CB3-M20 module up to 60–260 kWh per cluster, per SAJ's CH3 + CB3 datasheet.
- CB3-L261 liquid-cooled cabinet carries pack- and cabinet-level aerosol fire suppression plus a water sprinkler, per SAJ's datasheet.
- Manufacturer
- SAJ
- Model code
- CB3-L261
- Item no.
- DLK-SAJ-CB3L261
- Delivery
- Delivery included in your Proforma
Plan with CB3-L261
New system, extension or replacement? Linker Advisor starts from this article and asks only for what is still open — existing model, quantity, postcode, installation date.
Figures transcribed from the manufacturer datasheet on file. Confirm your grid code and configuration with our engineers before ordering.
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- Engineering-checked configurations
CB3-L261, specified from the datasheet.
Every value on this page is transcribed from the manufacturer documentation on file.
Energy
261 kWh nominal, 832 V nominal, 728 to 936 V operating window, 0.5P charge and discharge rate.
Inspect it before you spec it.
Official renders, installation photos and system panels for this model line.
Manufacturer product image from the official datasheet.
Manufacturer/dealer imagery, eye-gated 2026-07-11.
Specifications
Every value exactly as published in the official CB3-L261 documentation.
Documents
Complete the system
Balance-of-system and accessories paired with this model. Every pairing follows the manufacturer's official compatibility list.
SAJ CB3-HVC cluster control / BMS unit
- [1]SAJ CB3-HVC cluster control / BMS unit
SAJ CB3-M20 stackable module or CB3-L261 liquid-cooled cabinet (60–260 kWh per cluster)
- [1]SAJ CB3-M20 stackable module or CB3-L261 liquid-cooled cabinet (60–260 kWh per cluster)
What this unit is approved to run with.
Every pairing below traces to a manufacturer compatibility list, by document version and date. A pairing only one maker lists is marked; we quote it, an engineer confirms it.
SAJ CH3-100K-T8
Item no. DLK-SAJ-CH3100KT8 On SAJ's compatibility list
SAJ CH3-110K-T8
Item no. DLK-SAJ-CH3110KT8 On SAJ's compatibility list
SAJ CH3-125K-T8
Item no. DLK-SAJ-CH3125KT8 On SAJ's compatibility list
SAJ CH3-75K-T6
Item no. DLK-SAJ-CH375KT6 On SAJ's compatibility list
SAJ CH3-80K-T6
Item no. DLK-SAJ-CH380KT6 On SAJ's compatibility list
SAJ CH3-99.9K-T8
Item no. DLK-SAJ-CH3999KT8 On SAJ's compatibility list
SAJ H2-15K-T3
Item no. DLK-SAJ-H215KT3 On SAJ's compatibility list
SAJ H2-20K-T3
Item no. DLK-SAJ-H220KT3 On SAJ's compatibility list
Pick the rating
SAJ family. Same engineering, different size.
Every figure comes straight from the manufacturer's official datasheet.
Configuration 3
CB3-M20 modules never run alone; every cluster needs one CB3-HVC control module, ordered separately.
- Modules: each CB3-M20 holds 20.096 kWh at 64 V; a cluster spans 60 to 260 kWh, which is 3 to 13 modules by simple arithmetic.
- Control module: the CB3-HVC carries cluster control, DC switching and the BMS link over CAN and RS485, across a 150 to 1000 V window.
- Current: both module and control unit are rated 157 A continuous and 200 A maximum.
- Expansion: a second cluster added later needs its own second CB3-HVC.
SAJ states the CB3 battery is compatible with the SAJ CH2 and CH3 series inverters; it is a high-voltage battery and does not pair with low-voltage residential inverters.
- Voltage match: the CH3 battery input of 750 to 950 V sits inside the CB3-HVC window of 150 to 1000 V and inside the CB3-L261 range of 728 to 936 V.
- Cluster sizing: hold the cluster between 60 and 260 kWh so it lands in the inverter's working window.
- CHS3 note: SAJ markets the 125 kW / 261 kWh pairing of the CH3-125K-T8 with the CB3-L261 as the CHS3 solution; both parts ship as separate line items.
Clusters parallel from a single rack up to utility scale.
- Per cluster: 60 to 260 kWh of CB3-M20 modules behind one CB3-HVC, or 261 kWh per CB3-L261 cabinet.
- System ceiling: parallel clusters reach 1.25 MW and 10.4 MWh, per SAJ, for on-grid and off-grid applications.
- Storage duration: the L261 supports two to eight hour durations, set by how many cabinets sit behind the inverter.
- Phasing: each cluster added in a later project phase needs its own CB3-HVC control module.
Installation & wiring 1
The M20 stack belongs in a plant room; the L261 is the IP55 liquid-cooled cabinet for harsher placement.
- CB3-M20: IP20, 148 kg per module, stacks directly without extra brackets, ambient humidity 5 to 85 percent, up to 3000 m altitude.
- CB3-L261: IP55, liquid-cooled, 261 kWh in one cabinet at up to 2400 kg, C4-Medium anti-corrosion, -25 to +55 C, noise at or below 75 dB at 1 m.
- Fire safety: the L261 carries pack-level and cabinet-level aerosols plus a water sprinkler.
- Foundation note: the preliminary SAJ sheet prints an implausible 103 x 2300 x 1400 mm dimension for the L261; ask us for the released drawing before you plan the foundation.
Operation & warranty 1
SAJ backs the CB3-M20 cells with a 10 year warranty; the duty limits below frame the daily cycle.
- Warranty: 10 years on the cells, per SAJ.
- Depth of discharge: 95 percent on the CB3-M20.
- Current: 157 A rated and 200 A maximum charging and discharging on the module; the L261 runs at 0.5P with a 188 A maximum.
- Temperature: the M20 charges at 0 to 55 C and discharges at -10 to 55 C, so an unheated room that drops below freezing blocks charging; the L261 operates from -25 to +55 C.
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