SAJ CHS2-30K-T4-X
Description
Bypassing central NA-Schutz relays while absorbing 60 kWp solar generation.
SAJ CHS2-29.9K-T4-X is a turnkey 29.9 kW / up to 100.3 kWh all-in-one commercial hybrid storage station with 4 MPPT trackers and 60 kWp solar intake, factory-capped at 29,999 VA to bypass mandatory central NA-Schutz relay requirements under German VDE-AR-N 4105.
29,999 W Certified Export Cap
Sits strictly beneath 30 kVA thresholds, eliminating expensive external central grid protection switchgear.
4 MPPT Trackers with 60 kWp Solar Intake
Accepts large rooftop solar arrays across 4 distinct pitches, directing generation into facility loads and internal storage.
Scalable 57.3 to 100.3 kWh Internal Battery Options
Houses pre-wired high-voltage BU2-HV5 battery modules in the same enclosure with active HVAC.
Turnkey Outdoor Enclosure (IP55)
Consolidates hybrid inverter, batteries, master BMS, and fire protection into a single pad-mounted station.
More product details
In Germany, exceeding 30.0 kVA triggers a mandatory requirement for external central grid protection relays (*Zentraler NA-Schutz*). The CHS2-29.9K is factory-certified at 29,999 VA, allowing maximum allowable solar generation while remaining fully exempt.
- Factory firmware limits maximum continuous apparent power to 29,999 VA, streamlining low-voltage utility permitting.
- Connects up to 59,998 W of rooftop solar, routing generation above 29.9 kW directly into internal battery storage.
- 4 MPPT channels allow dedicated tracking for diverse warehouse roof slopes without cross-string clipping.
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3 models
Rated AC power
29.9 kW
30 kW
50 kW
Ingress protection
IP66
IP66
IP66
Operating temperature
-30°C to +60°C (45°C to 60°C with derating)
-30°C to +60°C (45°C to 60°C with derating)
-30°C to +60°C (45°C to 60°C with derating)
Weight
76 kg
76 kg
76 kg
Dimensions
630*630*290 mm [H*W*D]
630*630*290 mm [H*W*D]
630*630*290 mm [H*W*D]
Complete outdoor energy station with zero indoor switchroom requirements.
Housing the hybrid inverter, battery racks, master BMS, and HVAC in a single enclosure eliminates the need for separate indoor battery rooms and inter-cabinet cabling. Fully 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 (-20 to +50 °C). Automated aerosol fire suppression and gas detection provide certified industrial property safety.
Four trackers for mixed roofs
4 x 45 A MPPT takes a near-60 kWp array on this 30 kW face
Same battery as the bigger CHS2
100.3 kWh stays the printed energy on 29.9, 30 and 50. Power steps leave the tank unchanged
Technical data
Maximizing commercial solar generation while eliminating grid approval hurdles and equipment costs.
29.9 kW grid-cap compliant all-in-one commercial hybrid storage station.
Combining a 29.9 kW four-MPPT hybrid inverter with integrated CB2 battery storage in a single outdoor cabinet, the CHS2-29.9K-T4-X locks AC output at exactly 29,999 W. It allows German and European commercial sites to deploy up to 100.3 kWh of storage and 60,000 Wp of solar without requiring external central grid protection (*Zentraler NA-Schutz*), saving thousands of euros in equipment and weeks of inspection delays.
- Certified Export Cap
- 29,999 VA
- 200% Solar DC Intake
- 59,998 Wp
- Integrated Storage
- Up to 100.3 kWh
- Multi-Pitch Routing
- 4 MPPTs
System Config
- Type
- All-in-one C&I hybrid energy storage system, CHS2 Series
- Phase
- 3
- Topology
- Transformerless
- Battery type
- LiFePO4
Solar Input
- Max. PV array power (Wp @STC)
- 60 kWp
- Max. DC voltage (V)
- 1000
- MPPT voltage range (V)
- 180 ~ 850
- Rated DC voltage (V)
- 600
- Max. DC input current (A)
- 4*45
- Max. DC short circuit current (A)
- 4*55
- Number of strings per MPPT
- 2
Battery
- MPPT voltage range (V)
- 180 ~ 850
- Rated energy (kWh)
- 57.3 / 71.6 / 85.9 / 100.3
- Max. charging / discharging current (A)
- 150
Power Output
- Rated AC power (W)
- 30 kW
- Max. apparent power (VA)
- 30 kVA
- Rated / max. output current (A @230V)
- 43.3 / 43.3
- Rated AC voltage (V)
- 3+N+PE, 380 / 400
- Max. backup output power (VA)
- 30 kVA
- Peak backup apparent power (VA)
- 30 kVA
- On / off-grid switching time
- 20 ms (built-in STS)
Efficiency
- Max. efficiency
- 98%
- Euro efficiency
- 97.3%
- Max. battery to AC efficiency
- 96.0%
Physical & Environment
- Dimensions (H x W x D mm)
- 1980 x 988 x 1065
- Weight (kg)
- 1035 (57.3 kWh) / 1145 (71.6 kWh) / 1255 (85.9 kWh) / 1365 (100.3 kWh)
- Ingress protection
- IP55, IP66 (inverter)
- Cooling method
- Air conditioner
- Operating temperature range
- -30 C to +50 C (45 C to 50 C with derating)
- Max. operating altitude (m)
- 2000
Project fit
Where this model fits.
Scenarios that show which projects the SAJ CHS2-29.9K-T4-X belongs in, what to verify before quoting, and when another model is the better pick.
Project scenario
German Commercial Roofs (40–60 kWp PV) on Low-Voltage Grid
Commercial workshops, agricultural barns, and logistics offices in Germany subject to VDE-AR-N 4105 low-voltage connection rules.
Pre-set to 29,999 VA, allowing maximum feed-in and up to 100.3 kWh storage while bypassing expensive external NA-Schutz cabinets.
- BoundaryIf the facility is located in a country without the 30 kVA NA-Schutz cutoff or connects to a dedicated transformer station, step up to the CHS2-30K or CHS2-50K. ---
What Linker confirms with you
- If the facility is located in a country without the 30 kVA NA-Schutz cutoff or connects to a dedicated transformer station, step up to the CHS2-30K or CHS2-50K. ---
Documents
SAJ CHS2 All-in-One datasheet (Europe, EN)Product questions
What is the benefit of the All-in-One CHS2 format over separate inverters and battery cabinets?
Eliminates on-site DC cabling, saves switchroom space, and cuts installation time by 60%. The CHS2 combines the inverter, battery modules, HVAC, BMS, and fire protection into a single outdoor cabinet (1300 × 1030 × 2250 mm). Installers only need to connect external DC solar strings and AC grid cables to pre-wired terminal blocks, saving days of electrical contracting labor.
System components
Recommended components
SAJ eManager-C1 Pro communication box
Item number: DLK-SAJ-EMANAGERC1PRO
eManager-C1 Pro's own datasheet states a recommended use of 'CHS2, 2 to 10 units in parallel.'
