PDF 原檔：報告_OCP2026_Bosch_Rittal_800VDC_Sidecar架構_20261015_original.pdf
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圖片清單（已驗證 2026-10-19）
| 檔名 | 頁 | 分類 | 親眼所見內容 |
|---|---|---|---|
報告_OCP2026_Bosch_Rittal_800VDC_Sidecar架構_20261015_p2.png |
p2 | 真資料圖 | 800VDC 部署時間軸：2026/27 660-800kW Power Side Car、約 2028 1.5-2MW Power Center、約 2029 4-5MW Power Block、2030 以後 MV 直轉；左上為 NVIDIA 800 VDC Imperative 縮圖 |
報告_OCP2026_Bosch_Rittal_800VDC_Sidecar架構_20261015_p3.png |
p3 | 真資料圖 | PCB 式 power shelf（20kW PSU×3、60kW/1U）與 Power Module on Cooler（200kW PSU、100kW/1U）對照及規格條列，含 Bosch PMoC 實物與功率模組照 |
報告_OCP2026_Bosch_Rittal_800VDC_Sidecar架構_20261015_p4.png |
p4 | 真資料圖 | 空冷與液冷 sidecar 對照：200-1000kW 所需風速（3.6 至 18.1 m/s，空冷限制標在 600-700kW）及風量與冷卻液流量曲線（1000kW 約 74.6 m3/min 對 43.5 l/min） |
報告_OCP2026_Bosch_Rittal_800VDC_Sidecar架構_20261015_p6.png |
p6 | 真資料圖 | 開放架構範例：1MW（5 PSU、3 BBU、8 SCB，含 21kW BBU）與 2MW LV rectifier rack（10 PSU、10 SCB），中間為 DC PDU＋Busbar |
報告_OCP2026_Bosch_Rittal_800VDC_Sidecar架構_20261015_p8.png |
p8 | 真資料圖 | Rittal 800VDC 800kW/21kWh Power Side Car 與 2MW LV Rectifier Rack 機櫃實物與 OU 配置：ctrlX 管理單元、1MW AC PSU cluster（5×200kW）、825kW/21kWh BBU（3×225kW DC/DC＋6×3.5kWh 電池包） |
原始內容
p1
Justin Mark Herrmann Product Manager Energy & Power Solutions, Rittal Sven Finke Product Director 800VDC Power Rack, Bosch Powering the AI Rack of the Future: A Scalable 800 V DC Sidecar Architecture ] RACK & POWER
p2
The 800VDC Industry Dilemma • Race in Token/$/W in AI factories • Exponential growth in IT rack power • 480VAC reached its limit around 300kW • 800VDC deployment as a must to continue this race Technology set ready for this deployment roadmap? Do we have right standards in place? Source: NVIDIA “800 VDC Architecture: Industry Alignment & Execution” 2026/27: 660kW-800kW Power Side Car ~2028: 1.5MW-2MW Power Center 800VDC Deployment ~2029: 4MW-5MW Power Block 2030++: MV Direct Conversion ] RACK & POWER
p3
What is the right Technology for 800kW Power? Power Module on Cooler technology brings you: Output power >200kW @480VAC/800VDC per PSU Factor 10 less modules: 4 for 800kW | 10 for 2MW Much less complexity in mechanical integration and wiring Min 2/3 higher power density (100kW per 1 OU) Full scalable to e.g. 2MW rectifier performance in 20 OU PCB technology is flexible and state of art, but: Output limited to ~20kW @480VAC/800VDC per PSU module 40 PSU modules @800kW | 100 PSU modules @2MW High complexity in mechanical integration and wiring Power density limit around 60kW per 1 OU Limits in scalability to power class >1MW Printed Circuit Board (PCB) Remark: all power classes including 150%/50ms, 175%/2ms and 180%/0,5ms peak loads Picture AC PSU PCB based IN: 480VAC OUT: 800VDC Power Management Modul AC PSU (20kW|800VDC) AC PSU (20kW|800VDC) AC PSU (20kW|800VDC) Power Module on Cooler (PMoC) Picture AC PSU PCB based IN: 480VAC OUT: 800VDC AC PSU (200kW|800VDC) 60kW Power shelf (60kw/1U) 200kW Power shelf (100kw/1U)
p4
Where is the power density limit for air cooling? Example for liquid cooled power side car (ORV3 Rack) • 97% power rack efficiency @full load • ∆T coolant: 10K (inlet: 30°C, outlet: 40°C) • Usage of in row CDU already installed for IT Rack No relevant power limit with liquid cooling Example for air cooled power side car (ORV3 Rack) • 97% power rack efficiency @full load • ∆T air: 20K (inlet: 20°C, outlet: 40°C) • 5% of power rack space for air flow only Limit of air cooled power racks around 600-700kW Air Cooling Liquid Cooling 3.6 m/s 7.3 m/s 10.9 m/s 14.5 m/s 18.1 m/s 0.0 5.0 10.0 15.0 20.0 200kW 400kW 600kW 800kW 1000kW Side Car Power Class Air Speed [m/s] Air Speed Limit 14.9 m3/min 29.9 m3/min 44.8 m3/min 59.7 m3/min 74.6 m3/min 8.7 l/min 17.4 l/min 26.1 l/min 34.8 l/min 43.5 l/min 0.0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0 100.0 200kW 400kW 600kW 800kW 1000kW Side Car Power Class Air Volume [m3/min] Coolant Volume [l/min] Factor 1000 in scaling!
p5
• IP2X rated busbar and PDU combined in one • Standardized 60mm flat copper busbars for high availability • SSCB outputs can be freely positioned along the vertical length • Input on backside, leads to blind mate connectors to modules • Connectors to modules with at least ±1mm of floating space • Cascading control strategy, inner loop within module, outer loop with PLC DC PDU + Connections
p6
• Enable a baseline for power racks of the future • Enable various system builds within the architecture • Open interface design to encourage contributions • Engineered for next gen power centers Open Architecture DC PDU + Busbar PSU PSU PSU PSU PSU BBU BBU BBU SCB SCB SCB SCB SCB SCB SCB SCB Example 1: 1MW with 21kW BBU DC PDU + Busbar PSU PSU PSU PSU PSU SCB SCB SCB SCB SCB SCB SCB SCB Example 2: 2MW LV rectifier rack PSU PSU PSU PSU PSU SCB SCB
p7
• Blind mated PSU and BBU with hardware interlock • Hot swapping of PSU, BBU and SCB • Only front access is needed to maintain or exchange PSU and BBU • Back access only needed to exchange whips towards load • Modular DC PDU outputs, allow for custom 100kw+ layouts • HMI at front to give direct monitoring with front facing ports for advanced diagnostics Serviceability as the foundation
p8
Power Rack ready for Now and NextGen 800VDC 2MW LV Rectifier Rack 800VDC 800kW/21kwh Power Side Car Fixed installation (10 OU) • Central Power Management Unit (ctrlX) • LV power supply • AC Grid filter & protection devices 1MW AC PSU Cluster (10 OU) • 5x 200kW AC-PSU module • Optional as 4 out of 5 redundant 825kW / 21kWh BBU(24 OU) • 3x 225kW DC/DC converter module • 6x 3,5kWh batterie pack Fixed installation (10 OU) • Central Power Management Unit (ctrlX) • LV power supply • AC Grid filter & protection devices 1MW AC PSU Cluster (10 OU) • 5x 200kW AC-PSU module 1MW AC PSU Cluster (10 OU) • 5x 200kW AC-PSU module Fixed installation (10 OU) • AC Grid filter & protection devices Call to Action: let’s prepare for what comes next