SAJ CB2-71.6-HV5 (71.6 kWh C&I battery cabinet)
Description
Factory-integrated storage station with zero indoor space requirements.
SAJ CB2-57.3-HV5 is a 57.3 kWh pre-integrated commercial outdoor battery cabinet operating at 614.4 V nominal, equipped with twelve 50 A BU2-HV5 modules, active HVAC climate control, and aerosol fire protection for turnkey commercial peak shaving.
Pre-Integrated Turnkey Outdoor Cabinet
Factory-installed master BMS, DC switchgear, and internal busbars eliminate on-site wiring delays.
614.4 V Commercial Operating Voltage
Direct high-voltage handshake with SAJ CHS2 and CH3 hybrid inverters with peak electrical efficiency.
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
Constructing fire-rated indoor battery switchrooms adds heavy construction costs and planning delays. The CB2-57.3 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.
SAJ CHS2 / CB2
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4 models
Nominal energy
57.3 kWh
71.6 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
960 kg
1060 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]
Operating at the efficiency sweet-spot of commercial hybrid inverters.
Operating twelve 50 A modules in series pushes system voltage to 614.4 V nominal (537.6–691.2 V window), reducing current stress and line resistance losses during continuous 50 A charging and discharging. 192S series LFP cell string delivers maximum round-trip electrical efficiency on SAJ CH3 and CHS2 inverters. 50 A continuous current rating delivers up to 30 kW continuous DC charge and discharge power. Real-time master BMS balancing maintains uniform voltage across all 12 internal modules.
Outdoor IP55 cabinet.
Ground-mounted, air-conditioner cooled, CAN-linked. Built for the CHS2 battery side, not a residential stack.
150 A into HV LFP.
Rated charge and discharge stay at 150 A while voltage and energy climb with module count.
Technical data
Turnkey commercial energy storage engineered for factory peak shaving and solar self-consumption.
57.3 kWh commercial outdoor battery cabinet with pre-integrated fire suppression & HVAC.
Serving as the entry-level configuration in SAJ's CB2 outdoor commercial storage lineup, this cabinet integrates twelve 50 A BU2-HV5 modules to deliver 57.3 kWh at 614.4 V nominal. It comes completely pre-wired with internal thermal management, aerosol fire protection, and an IP55 outdoor enclosure, eliminating the need to construct dedicated indoor battery rooms.
- Nominal Storage
- 57.34 kWh
- High-Voltage Bus
- 614.4 V
- Active Climate
- Integrated HVAC
- IP55 Enclosure
- Turnkey Pad
Battery Cabinet
- Type
- C&I battery cabinet, SAJ CHS2 / CB2 series (LiFePO4)
- Rated energy (kWh)
- 57.3 kWh
- Usable energy (kWh)
- 51.5 kWh
- Rated power (kW)
- 28.6 kW
- Number of battery modules
- 4
- 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)
- 204.8 V
- Voltage range (V)
- 179.2~230.4 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)
- 960 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 CB2-57.3-HV5 (57.3 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 (40–60 kWp Solar) with Outdoor Pad Space
Commercial buildings seeking ~50 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 an 80–100 kW solar array and requires 3 to 4 hours of continuous peak shaving, step up to the CB2-71.6-HV5 (71.6 kWh) or CB2-100.3-HV5 (100.3 kWh). ---
What Linker confirms with you
- If the facility connects to an 80–100 kW solar array and requires 3 to 4 hours of continuous peak shaving, step up to the CB2-71.6-HV5 (71.6 kWh) or 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 CB2-57.3-HV5 cabinet?
SAJ CH3 series (75–125 kW) and CHS2 all-in-one stations. The cabinet operates across 537.6 V to 691.2 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. 1,035 kg. The outdoor cabinet measures 1,300 mm wide × 1,030 mm deep × 2,250 mm high and weighs approx. 1,035 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.
