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KAC20DP2 / KAC25DP2 / KAC29DP2 / KAC30DP2 / KAC40DP2 / KAC49DP2 / KAC50DP2 BC70DE2 / BC89DE2 / BC107DE2

BluePulse Air-cooling Battery System 20-50kW / BC70-107kWh

BluePulse Series Air-cooling Battery System 20-50kW / BC70-107kWh combines the KAC20-50DP2 Hybrid Inverter with the BC70/89/107DE2 Air-cooling Battery Cabinet to deliver a highly integrated, safe, and intelligent C&I energy storage solution. Combining native DC-coupled architecture, direct PV integration, and high-density LFP battery technology, the system maximizes solar utilization while ensuring safe, stable, and efficient energy storage. Featuring seamless 10ms-level backup switching, up to 97.5% conversion efficiency, flexible scalability for multi-MWh deployments, and a rugged outdoor design, the solution is ideal for applications across C&I facilities.

BluePulse Air-cooling Battery System 20-50kW / BC70-107kWh
Key Features
High Efficiency & Maximum ROI
Up to 97.5% system efficiency
2× PV oversizing with 4 MPPTs
Intelligent energy optimization for higher returns
Uninterrupted Power & Flexible Expansion
10ms-level* on/off grid switching time with integrated STS
Max. 20 PCS parallel for on-grid, 10 PCS for on/off-grid situation
Flexible expansion up to 4.28MWh

Industry-Leading Safety & Reliability
Tier 1 280Ah battery cells with 4+3 fire protection
Intelligent air cooling for longer battery life
IP66 protection for harsh outdoor environments
Smart Control & Seamless Integration
Fully integrated self-developed BMS, EMS & PCS
Compatible with VPP and third-party EMS platforms

Cloud-based monitoring and simplified O&M via KSTAR Sync
KAC20DP2 / KAC25DP2 / KAC29DP2 / KAC30DP2 / KAC40DP2 / KAC49DP2 / KAC50DP2 BC70DE2 / BC89DE2 / BC107DE2
Backgound image for KAC20DP2 / KAC25DP2 / KAC29DP2 / KAC30DP2 / KAC40DP2 / KAC49DP2 / KAC50DP2 BC70DE2 / BC89DE2 / BC107DE2

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Datasheet
Certifications
User Manual
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Datasheet
 - Datasheet_KAC(20-50)DP2-BC(70-107)DE2_KR_V1
 - Datasheet_KAC(20_50)DP2-BC(70-107)DE2_RO_V1
 - Datasheet_KAC(20~50)DP2-BC(70~107)DE2_EN_V5
User Manual
 - 4257-2137_BC107DE2 Kstar User Manual(EN)_2025.07.03 (1)
 - User Manual_KAC20-50DP2_EN_V2.0
Certifications
 - Certification Germany - KAC50DP2 VDE N4110 (1)
Warranty
 - Warranty of Kstar C&I ESS Products-Standard-280Ah-V2.8.6-20260120
More Materials
 - Click here to see more materials

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BluePulse Air-cooling Battery System 20-50kW / BC70-107kWh

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