Eaton vs Hitachi Energy
Eaton and Hitachi Energy are both placed on 4 of the same AI data center parts in this catalog, spanning layer 7. Eaton appears on 21 parts in total and Hitachi Energy on 9.
At a glance
| Eaton | Hitachi Energy | |
|---|---|---|
| Ownership | public | subsidiary |
| Headquarters | Dublin, Ireland | Zurich, Switzerland |
| Primary listing | ETN | none in catalog |
| Market cap | 142.2B USD | |
| Parts placed | 21 | 9 |
| Layers covered | 4 | 2 |
| Units / subsidiaries | 0 | 0 |
| Seen in machines | 1 | 0 |
Market caps are a nightly snapshot in each listing's own currency, never converted.
What the shared parts are
- HV switchgear, GIS, breakers, protection relays — The high-voltage switching, protection, and fault-isolation gear between the substation transformers and the campus's medium-voltage distribution, including gas-insulated (GIS) designs for compact sites.
- MV switchgear, E-houses, power skids — Medium-voltage switchgear packaged into pre-fabricated electrical houses (E-houses) or skids that distribute power across a campus and can be factory-built and shipped as modules.
- MV/LV transformers — Step-down transformers that take medium-voltage distribution down to the low voltage used inside a building, available in pad-mount (outdoor, oil-filled) and dry-type or cast-resin (indoor) designs.
- 800 V DC architecture & solid-state transformers — An emerging DC power distribution architecture, using 800 V DC in place of the AC busbar and power-shelf approach current racks use, paired with solid-state transformers (SSTs) that could replace multiple stages of conventional AC transformation.
The 4 parts both make
| Part | Eaton | Hitachi Energy |
|---|---|---|
| HV switchgear, GIS, breakers, protection relays Layer 7 — Electrical: power distribution (grid to rack) | manufacturer inferred | manufacturer disclosed |
| MV switchgear, E-houses, power skids Layer 7 — Electrical: power distribution (grid to rack) | manufacturer inferred | manufacturer inferred |
| MV/LV transformers Layer 7 — Electrical: power distribution (grid to rack) | manufacturer inferred | manufacturer inferred |
| 800 V DC architecture & solid-state transformers Layer 7 — Electrical: power distribution (grid to rack) | manufacturer inferred | manufacturer inferred |
Only Eaton
- Power shelves & PSUs layer 4
- In-rack busbar & power whips layer 4
- Rack PDUs layer 4
- Quick disconnects layer 5
- Hoses, tubing, fittings, valves layer 5
- LV switchgear, switchboards, panelboards layer 7
- Busway / busbar trunking layer 7
- Floor PDUs, RPPs, static transfer switches, ATS layer 7
- Circuit protection, fuses, surge, grounding layer 7
- UPS (static, modular, rotary/DRUPS) & UPS power semis layer 7
- and 7 more on Eaton's page.
Only Hitachi Energy
- Large power transformers (345–765 kV) & substations layer 7
- SF6-free layer 7
- SSTs (emerging) layer 7
- HVDC layer 8
- STATCOM and synchronous condensers layer 8
Questions
- Do Eaton and Hitachi Energy compete?
- In this catalog they are both placed on 4 of the same parts, across 1 layer: HV switchgear, GIS, breakers, protection relays, MV switchgear, E-houses, power skids, MV/LV transformers, 800 V DC architecture & solid-state transformers. Sharing a part does not mean selling the same product to the same buyer, so read each row's product note.
- Which has more placements, Eaton or Hitachi Energy?
- Eaton has 21 placements and Hitachi Energy has 9. Placement counts reflect how thoroughly each company has been catalogued as well as its real breadth, so they are not a ranking.
Generated from the catalog's part-to-company table. Each placement is tagged disclosed, reported or inferred; see sources & method. Neither company is endorsed or ranked here.