Power and UPS

White paperFree to read

Schneider Electric · 2026

How 6 AI Attributes Change Data Center Design

Add an AI cluster design profile with rack defaults of 750x1,200 mm, 48U, static 2,270 kg and dynamic 1,600 kg.

• GPU TDP trend: V100 300 W, A100 400 W, H100 700 W, B200 1,000 W, B300 1,400 W.

Liquid coolingRacksElectrical

White paperFree to read

Schneider Electric · 2024

How to Choose IT Rack Power Distribution

Build an rPDU selector: from rack kW, voltage, phases and redundancy, compute PDU count with an 80% (NA) or 100% (IEC) factor.

• Example combination rPDU: 36 x C13 + 6 x C19.

ElectricalRacksOperations

White paperFree to read

Schneider Electric · 2018

Impact of Leading Power Factor on Data Center Generator Systems

Run a generator check: estimate leading kVAr from the IT kW on the non-UPS or bypass path and the PSU load percentage.

• Old non-PFC supplies had a power factor of about 0.65, dominated by harmonics.

GeneratorsElectricalReliability

Technical guideFree to read

ABB · 2014

Is it time to consider medium voltage UPS systems in large scale data centers?

Add "single-conversion / industrial (VI)" to the UPS topology picker for hyperscale sites with a strong grid, showing efficiency (>99%) beside reduced conditioning.

• Single-conversion efficiency >99%

UPSElectricalReliability

Technical guideFree to read

ABB · 2015

Medium voltage on the rise: How MV systems can cut costs and boost efficiency in data centers

In the layout engine default front working clearance to 1.2 m for MV switchgear and 0.9-1.0 m for LV, with a jurisdiction override (e.g. NEC 110.26/110.34).

• MV range defined as 1,000-38,000 V

ElectricalSite planning

White paperFree to read

Schneider Electric · 2022

Mitigating Electrical Risk While Swapping Energized Equipment

Keep hot-swappable-module and touch-safe fields in the UPS and PDU catalogue

• Fast semiconductor fuses clear faults in about 2-10 ms

ElectricalOperationsUPS

White paperFree to read

Schneider Electric · 2020

Monetizing Energy Storage in the Data Center

Add an optional grid-interactive UPS feature

• Li-ion life above 10 years supports cycling

EnergyUPSSustainability

White paperFree to read

Schneider Electric · 2023

Necessary Considerations for Designing DC Architectures in Data Centers

Treat DC architecture as an expert-mode option and attach a mandatory protection-study flag

• The worked example architecture uses a 380 V DC bus

Electrical

Technical guideFree to read

ABB · 2026

Next-Generation Medium-Voltage Architecture for AI Data Centers

For loads above roughly 30-50 MW add a grid-code compliance checklist (LVRT duration, frequency band, RoCoF, PF) and let users choose LV-UPS versus MV-UPS architecture.

• BESS blocks 0.6-21.6 MW with 1, 2 or 4 h durations

ElectricalUPSSite planning

StandardCitation

NFPA · 2024

NFPA 75: Standard for the Fire Protection of Information Technology Equipment

Defaults for white space in NFPA jurisdictions: 1-hour rated walls, 3/4-hour doors and rated fire/smoke dampers at penetrations.

• The Chapter 4 risk assessment can justify alternative protection.

Fire safetySite planningElectrical

Technical guidePDF

Open Compute Project Foundation · 2026

Open Data Center: Next-Generation ML Infrastructure Design Principles, Revision 0.7.0 (Design Specification, effective Aug 27, 2026)

Base floor and transport-route load checks on the 8,000 lb rack and the 15,000 lb rack-plus-sidecar combination, and include the weight of the moving equipment.

• Available quick connects currently top out at 2 in.

RacksLiquid coolingSite planning

Read / Download

Technical guidePDF

Open Compute Project Foundation · 2022

Open Rack V3 Base Specification, Revision 1.0

In rack delivery and placement planning, check the 10-degree entry and 15-degree exit ramp angles, the 25.4 mm floor gap and the 4 mm step as rolling limits, and obtain door and shipping dimensions from the rack vendor separately.

• The rack supports 48 mm OpenU or 44.45 mm EIA-310-D rack unit pitch.

RacksElectrical

Read / Download

Technical guidePDF

Open Compute Project Foundation · 2026

Open Rack V3 HPR V2 72kW Power Shelf, Rev 1.0.0 (June 12, 2026)

Size rack feeds by option: two independent 60 A NEC or 63 A IEC circuits, protection suited to 40 kA available short-circuit current at the tap-box, and no PDU in between.

• Shelf envelope is 537 mm W x 46.2 mm H x 867.5 mm D (1 OU).

ElectricalRacksReliability

Read / Download

Technical guidePDF

Open Compute Project Foundation · 2022

Open Rack V3 Power Shelf Specification, Rev 1.0 (document dated 29 April 2025)

When choosing the feeding branch circuit, size option 1 for two independent 20 A NEC circuits or option 2 for a 32 A IEC circuit, check the 25 kA available short-circuit current at the outlet, and note there is no PDU in between.

• The 1 OU shelf measures 537 mm W x 46 mm H x 788.7 mm D.

ElectricalRacksReliability

Read / Download

Technical guideFree to read

Open Compute Project · 2026

ORV3 HVDC-LVDC 100 kW Power Shelf Design Specification v1.0.0

Add an '800 VDC (+/-400 V) to rack' electrical topology option: facility rectification upstream, DC busway, and rack HVDC shelves of 100 kW each.

• 48 V return floating, not bonded to the shelf chassis.

RacksElectricalUPS

Technical guideFree to read

Legrand (Server Technology) · 2024

Powering the Future: Revolutionizing Data Center Design (BUS PAC)

Add busway entries with 40-1,250 A ampacity and tap-off ratings to the electrical catalog; define rack PDU entries at 16-100 A and 208/415/480 V.

• Related standards: IEC 61439-6, UL 857, NEC 645.

ElectricalRacksAirflow

White paperFree to read

Schneider Electric · 2020

Practical Guide to Preparing Edge Sites and Installing Micro Data Centers

In the edge template, allow a ventilated enclosure when IT load is 4 kW or less.

• In-rack mounted cooling units cover about 3.5 kW.

Site planningRacksCooling

Technical guideFree to read

Siemens / NVIDIA · 2025

Protections for Data Centers Powered by Direct Current (Technical Paper)

If 800 VDC is selected, require SSCB/hybrid breakers in the protection catalog.

• UL 2367 covers e-fuses only up to 60 VDC.

ElectricalRacksReliability

White paperFree to read

Schneider Electric · 2021

Rack Powering Options for High Density

In the rack power module, catalogue whip types, compute kW per whip as V x A x sqrt3 x 0.8 (three-phase) or V x A x 0.8 (single-phase), and default each rack to two three-phase whips (A/B).

• Rack PDUs should be loaded to no more than 80% of rating.

ElectricalRacks

White paperFree to read

Schneider Electric · 2021

Rack Powering Options for High Density in 230 V AC Countries

When the project region is IEC, start rack power from 230/400 V, 16 A or 32 A three-phase IEC 60309 whips.

• In the cited survey, 6-10 kW per rack occurs about 48% of the time.

ElectricalRacks

White paperFree to read

ABB · 2025

Redefining Power Infrastructure for AI: The Role of 800 VDC in Data Centers

Mark 800 VDC as an "emerging" distribution option in the electrical catalog and show prerequisites: DC-rated SSCBs, DC busway, grounding scheme choice.

• 800 VDC architecture targets 1 MW server racks

ElectricalRacksEnergy

Technical guideFree to read

Eaton / Trane · 2025

Reference Design #505: Eaton 1 GW Power Architecture Meets Trane Thermal Management

Voltage-selection rule: motors above about 200 kW (large chillers and pumps) default to MV (4.16/6.6/11 kV) feeders; compute I = P/(sqrt(3) x V x PF) to show cable savings.

• 1,500 HP pump: 1,420 A at 480 V vs 164 A at 4.16 kV

ElectricalUPSLiquid cooling

White paperFree to read

Schneider Electric · 2026

Retrofitting Existing Power Systems for AI Clusters

In the AI rack template, default to 415/240 V (NA) or 400/230 V (IEC).

• PDU transformers should be specified with 5-9% impedance.

ElectricalUPSRacks

Technical guideFree to read

Cummins · 2022

Specifying Standby Generator Set Requirements for Data Centers

Take site conditions (altitude, temperature) and nonlinear-load factors as evidenced inputs.

• The related standard is ISO 8528; the webinar gives selection logic, not numeric thresholds.

GeneratorsElectricalUPS

All content and rights belong to the respective authors and publishers. SoSo CAD provides only the citation, its own summary and a link to the source, and is not responsible for the sources' content.