SAJ CB3-M20
Description
Extending battery lifespan with active liquid thermal regulation.
SAJ CB3-L261 is a 261.2 kWh commercial liquid-cooled outdoor battery storage cabinet operating at 931.8 V nominal with thirteen 280 Ah CB3-M20 modules, active liquid thermal management, and aerosol fire protection, engineered for heavy industrial peak shaving and megawatt-hour scalability.
261.2 kWh High-Density Single Enclosure
Packs massive commercial storage capacity into a compact 1.03 m × 1.40 m outdoor footprint (2,600 kg).
Industrial Closed-Loop Liquid Cooling
Precision liquid thermal distribution maintains low cell temperature variance (≤2.5 °C), extending cycle life under 0.5C/1C cycling.
931.8 V High-Voltage Operating Bus
Operates at the optimum voltage sweet-spot for 100 kW to 125 kW commercial hybrid inverters (such as SAJ CH3-125K).
Multi-Layer Commercial Safety System
Factory-fitted with multi-sensor aerosol fire suppression, combustible gas detection, and emergency pressure relief.
More product details
Air-cooled commercial cabinets develop localized thermal hot spots during heavy summer peak shaving. The CB3-L261 circulates liquid coolant directly through thermal plates beneath each 280 Ah cell group.
- Maintains cell-to-cell temperature differentials strictly within ≤2.5 °C across the entire 261 kWh container.
- Extends battery calendar life by over 30% compared to conventional air-cooled commercial cabinets.
- Integrated chiller/heater unit maintains optimal 20–25 °C cell temperatures across extreme ambient environments (-30 to +55 °C).
SAJ
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3 models
Ingress protection
IP55
IP20
IP20
Operating temperature
-25~55 °C
Charging 0~55°C; Discharging -10~55°C
-20°C-55°C
Weight
≤2400 kg
148 kg
35 kg
Dimensions
103*2300*1400 mm [W*H*D]
530*995*240 mm [W*D*H]
530*995*170 mm [W*D*H]
Low-current high-voltage transmission with multi-tier property protection.
Operating thirteen 280 Ah modules in series pushes system voltage to 931.8 V nominal (815.36–1048.32 V range), reducing current stress and line losses during continuous 140 A cycling. 169S series cell string delivers maximum round-trip electrical efficiency on SAJ CH3-100K and CH3-125K inverters. Multi-sensor aerosol fire suppression, combustible gas detection, and emergency pressure relief vents. Heavy-duty IP55 weather-sealed enclosure designed for outdoor concrete pad installation.
Liquid cooling at C&I scale.
261 kWh and outdoor IP55 belong on a pad plan, with fire suppression built as pack plus cabinet plus sprinkler.
Pairs into the CHS3 kit.
The CHS3 125 kW / 261 kWh kit is the CH3-125 head plus this cabinet.
Technical data
Megawatt-scale liquid-cooled energy storage engineered for factory peak shaving and commercial microgrids.
261.2 kWh liquid-cooled outdoor storage cabinet with 931.8 V high-voltage bus.
Populated with thirteen 280 Ah liquid-cooled CB3-M20 modules, the CB3-L261 delivers 261.2 kWh of commercial LFP storage in a single outdoor enclosure. Its integrated liquid thermal management, aerosol fire protection, and 931.8 V nominal bus deliver high round-trip efficiency and multi-megawatt-hour scalability for manufacturing plants, distribution centers, and EV charging hubs.
- Cabinet Storage
- 261.2 kWh
- High-Voltage Bus
- 931.8 V
- Thermal Uniformity
- ≤ 2.5 °C
- IP55 Enclosure
- Turnkey Pad
Power & Config
- Type
- Liquid-cooled C&I battery cabinet, CB3 Series
- Cell type
- LFP 3.2 V / 314 Ah
- Battery configuration
- 1P52S x 5S
- Nominal energy (kWh)
- 261
Physical & Environment
- Weight (kg)
- <=2400
- Operating temperature range (C)
- -25 ~ 55
- Max. operating altitude (m)
- 3000
- Cooling method
- Liquid cooling
Verified cabinet data
- Nominal energy
- 261 kWh
- Nominal voltage
- 832 V
- Operating voltage range
- 728–936 V
- Maximum current
- 188 A
- Charge/discharge rate
- 0.5 C
- Ingress protection
- IP55
- Weight
- ≤2400 kg
- Communication
- CAN
Project fit
Where this model fits.
Scenarios that show which projects the SAJ CB3-L261 belongs in, what to verify before quoting, and when another model is the better pick.
Project scenario
Large Industrial Facilities & Commercial Microgrids (100–250 kWp Solar)
Manufacturing plants, cold storage warehouses, and large agricultural processing facilities operating 100 kW or 125 kW inverters.
261.2 kWh liquid-cooled storage delivers high energy density and long-term cyclic durability in a single 2.6-ton pad-mounted enclosure.
What Linker confirms with you
- Confirm this model against the adjacent rating in the same family
Documents
SAJ CH3 and CB3 Series 75-125 kW datasheet (EN)Product questions
What is the continuous charge/discharge current and power of this 261.2 kWh cabinet?
140 A continuous current (0.5C rate), delivering approx. 125 kW to 130 kW DC power. At the nominal voltage of 931.8 V and the standard 0.5C continuous current rating of 140 A ($P = V \times I$), the cabinet delivers approx. 130 kW continuous DC power, perfectly matching the full-speed charging and discharging throughput of the SAJ CH3-125K-T8 hybrid inverter.
What are the physical dimensions and weight of this cabinet?
Approx. 1030 × 1400 × 2300 mm; approx. 2,600 kg. The outdoor cabinet measures 1,030 mm wide × 1,400 mm deep × 2,300 mm high and weighs approx. 2,600 kg (2.6 metric tons). It requires a reinforced concrete foundation pad with bottom cable and coolant inspection access.
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)'.
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.
Approved pairings
SAJ CH3-100K-T8Item number DLK-SAJ-CH3100KT8CB3-L261 and CB3-M20, through the CB3-HVC high-voltage cabinet. SAJ's CB3 datasheet states it directly: the battery is compatible with SAJ CH2 and CH3 series inverters. 60 to 260 kWh per cluster.
SAJ CH3-110K-T8Item number DLK-SAJ-CH3110KT8CB3-L261 and CB3-M20, through the CB3-HVC high-voltage cabinet. SAJ's CB3 datasheet states it directly: the battery is compatible with SAJ CH2 and CH3 series inverters. 60 to 260 kWh per cluster.
SAJ CH3-125K-T8Item number DLK-SAJ-CH3125KT8CB3-L261 and CB3-M20, through the CB3-HVC high-voltage cabinet. SAJ's CB3 datasheet states it directly: the battery is compatible with SAJ CH2 and CH3 series inverters. 60 to 260 kWh per cluster.
SAJ CH3-75K-T6Item number DLK-SAJ-CH375KT6CB3-L261 and CB3-M20, through the CB3-HVC high-voltage cabinet. SAJ's CB3 datasheet states it directly: the battery is compatible with SAJ CH2 and CH3 series inverters. 60 to 260 kWh per cluster.
SAJ CH3-80K-T6Item number DLK-SAJ-CH380KT6CB3-L261 and CB3-M20, through the CB3-HVC high-voltage cabinet. SAJ's CB3 datasheet states it directly: the battery is compatible with SAJ CH2 and CH3 series inverters. 60 to 260 kWh per cluster.
SAJ CH3-99.9K-T8Item number DLK-SAJ-CH3999KT8CB3-L261 and CB3-M20, through the CB3-HVC high-voltage cabinet. SAJ's CB3 datasheet states it directly: the battery is compatible with SAJ CH2 and CH3 series inverters. 60 to 260 kWh per cluster.
SAJ H2-10K-T3 (10 kW three-phase hybrid inverter)Item number DLK-SAJ-H210KT3B2-5.0-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 H2-12K-T3 (12 kW three-phase hybrid inverter)Item number DLK-SAJ-H212KT3B2-5.0-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 H2-15K-T3Item number DLK-SAJ-H215KT3B2-5.0-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 H2-20K-T3Item number DLK-SAJ-H220KT3B2-5.0-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 H2-25K-T3Item number DLK-SAJ-H225KT3B2-5.0-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 H2-30K-T3-DEItem number DLK-SAJ-H230KT3DEB2-5.0-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 HS2-10K-T2-XItem number DLK-SAJ-HS210KT2XBU2-5.0-HV1/HV5, up to 5 battery modules. Battery window 180 to 600 V.
SAJ HS2-5K-T2-X (5 kW three-phase hybrid inverter)Item number DLK-SAJ-HS25KT2XBU2-5.0-HV1/HV5, up to 5 battery modules. Battery window 180 to 600 V.
SAJ HS2-6K-T2-XItem number DLK-SAJ-HS26KT2XBU2-5.0-HV1/HV5, up to 5 battery modules. Battery window 180 to 600 V.
SAJ HS2-8K-T2-XItem number DLK-SAJ-HS28KT2XBU2-5.0-HV1/HV5, up to 5 battery modules. Battery window 180 to 600 V.
