SAJ CB2-57.3-HV5 (57.3 kWh C&I battery cabinet)
Description
Low-current long-string transmission for heavy commercial cycling.
SAJ CB2-71.6-HV5 is a 71.6 kWh pre-integrated commercial outdoor battery cabinet operating at 768.0 V nominal, equipped with fifteen 50 A BU2-HV5 modules, active HVAC climate control, and aerosol fire protection for intensive commercial peak shaving.
768.0 V High-Voltage Operating Bus (15 Modules)
High string voltage reduces current stress and line resistance losses during continuous high-rate commercial cycling.
Pre-Integrated Turnkey Outdoor Cabinet
Factory-installed master BMS, DC switchgear, and internal busbars eliminate on-site wiring delays.
Integrated HVAC Air Conditioning & Heating
Maintains optimal battery cell temperatures across extreme outdoor seasons (-20 °C to +50 °C).
Multi-Tier Aerosol Fire Protection
Automated thermal sensors and integrated fire suppression provide commercial property safety.
More product details
Operating fifteen 50 A modules in series pushes system voltage to 768.0 V nominal (672.0–864.0 V window), reducing current stress and line resistance losses during continuous 50 A charging and discharging.
- 240S series LFP cell string delivers maximum round-trip electrical efficiency on SAJ CH3 and CHS2 inverters.
- 50 A continuous current rating delivers up to 38 kW continuous DC charge and discharge power.
- Real-time master BMS balancing maintains uniform voltage across all 15 internal modules.
SAJ CHS2 / CB2
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4 models
Nominal energy
71.6 kWh
57.3 kWh
85.9 kWh
100.3 kWh
Ingress protection
IP55
IP55
IP55
IP55
Operating temperature
-30~50 °C
-30~50 °C
-30~50 °C
-30~50 °C
Weight
1060 kg
960 kg
1160 kg
1260 kg
Dimensions
1980*988*1065 mm [H*W*D]
1980*988*1065 mm [H*W*D]
1980*988*1065 mm [H*W*D]
1980*988*1065 mm [H*W*D]
Factory-integrated storage station with zero indoor space requirements.
Constructing fire-rated indoor battery switchrooms adds heavy construction costs and planning delays. The CB2-71.6 arrives as a fully integrated IP55 outdoor cabinet ready to connect to external concrete pads. Pre-wired with internal high-voltage DC busbars, motorized disconnect switchgear, and master BMS. Integrated HVAC unit maintains battery cells at an optimal 20–25 °C regardless of ambient weather. Automated aerosol fire suppression and gas detection provide certified industrial property safety.
No footprint change.
Module count is what you buy. The cabinet outline and outdoor IP55 rating stay constant.
Built for CHS2 pairing.
CB2 is the battery side of the CHS2 outdoor family. Size the modules to the plateau, not to a different cabinet product.
Technical data
High-voltage outdoor storage engineered for commercial workshops, distribution centers, and hotel complexes.
71.6 kWh / 768 V commercial outdoor battery cabinet for intensive daily peak shaving.
Populated with fifteen 50 A BU2-HV5 modules, this CB2 cabinet delivers 71.6 kWh at 768.0 V nominal across a wide 672.0–864.0 V window. Designed for commercial facilities, agricultural workshops, and hotel complexes, it provides high-voltage DC storage to buffer high daytime solar yields and shave expensive utility peak demand charges.
- Nominal Storage
- 71.68 kWh
- High-Voltage Bus
- 768.0 V
- Active Climate
- Integrated HVAC
- IP55 Enclosure
- Turnkey Pad
Battery Cabinet
- Type
- C&I battery cabinet, SAJ CHS2 / CB2 series (LiFePO4)
- Rated energy (kWh)
- 71.6 kWh
- Usable energy (kWh)
- 64.4 kWh
- Rated power (kW)
- 35.6 kW
- Number of battery modules
- 5
- Battery module
- CBU2-14.33-HV5 — 14.33 kWh, 115 kg, 231 x 523 x 805 mm
- Control module
- CBC2-HV5 — 28 kg, 225 x 483 x 610 mm
Electrical
- Nominal voltage (V)
- 256 V
- Voltage range (V)
- 224~288 V
- Rated capacity (Ah)
- 280 Ah
- Max. charging / discharging current (A)
- 150 A
- Communication
- CAN
Physical & Environment
- Dimensions (H x W x D, mm)
- 1980*988*1065 mm [H*W*D]
- Weight (kg)
- 1060 kg
- Ingress protection
- IP55
- Cooling method
- Air Conditioner
- Mounting
- Ground-Mounted
- Operating temperature range (°C)
- -30~50 °C
- Ambient humidity
- 5~95% (No Condensing)
- Max. operating altitude (m)
- 2000 m
Project fit
Where this model fits.
Scenarios that show which projects the SAJ CB2-71.6-HV5 (71.6 kWh C&I battery cabinet) belongs in, what to verify before quoting, and when another model is the better pick.
Project scenario
Commercial Facilities & Workshops (60–80 kWp Solar) with Outdoor Pad Space
Commercial buildings seeking ~70 kWh of storage for peak shaving without indoor floor space for battery racks.
Pre-integrated outdoor cabinet installs cleanly on an external concrete pad beside the electrical room.
- BoundaryIf the facility connects to a 100 kW+ solar array and requires over 90 kWh usable storage, step up to the CB2-100.3-HV5 (100.3 kWh). ---
What Linker confirms with you
- If the facility connects to a 100 kW+ solar array and requires over 90 kWh usable storage, step up to the CB2-100.3-HV5 (100.3 kWh). ---
Documents
SAJ CHS2 All-in-One datasheet (Europe, EN), CB2 cabinet table on p4Product questions
What inverters are natively compatible with the CB2-71.6-HV5 cabinet?
SAJ CH3 series (75–125 kW) and CHS2 all-in-one stations. The cabinet operates across 672.0 V to 864.0 V DC, matching the high-voltage battery input windows of SAJ CH3 commercial hybrid inverters and SAJ CHS2 all-in-one commercial storage systems.
What are the physical dimensions and weight of this cabinet?
1300 × 1030 × 2250 mm; approx. 1,250 kg. The outdoor cabinet measures 1,300 mm wide × 1,030 mm deep × 2,250 mm high and weighs approx. 1,250 kg. It is rated IP55 for outdoor pad mounting.
System components
Recommended components
SAJ eManager-C1 Pro communication box
Item number: DLK-SAJ-EMANAGERC1PRO
The eManager-C1 Pro datasheet states a recommended use of 'CHS2, 2 to 10 units in parallel', which is the same C&I line this cabinet belongs to.
