Eaton vs Siemens
Eaton and Siemens are both placed on 7 of the same AI data center parts in this catalog, spanning layer 7. Eaton appears on 21 parts in total and Siemens on 15.
At a glance
| Eaton | Siemens | |
|---|---|---|
| Ownership | public | public |
| Headquarters | Dublin, Ireland | Munich, Germany |
| Primary listing | ETN | SIE.DE |
| Market cap | 142.2B USD | 196.3B EUR |
| Parts placed | 21 | 15 |
| Layers covered | 4 | 3 |
| Units / subsidiaries | 0 | 2 |
| Seen in machines | 1 | 0 |
Market caps are a nightly snapshot in each listing's own currency, never converted.
What the shared parts are
- 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.
- LV switchgear, switchboards, panelboards — Low-voltage electrical distribution equipment — switchgear, switchboards, and panelboards — that receives power from MV/LV transformers and distributes it onward to busway, PDUs, and building loads.
- Busway / busbar trunking — Rigid, modular busbar systems that carry power along a data hall's overhead or perimeter path with tap-off points, used as an alternative to running individual cables to each row.
- 3 more in the table below.
The 7 parts both make
| Part | Eaton | Siemens |
|---|---|---|
| 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 |
| LV switchgear, switchboards, panelboards Layer 7 — Electrical: power distribution (grid to rack) | manufacturer inferred | manufacturer inferred |
| Busway / busbar trunking Layer 7 — Electrical: power distribution (grid to rack) | manufacturer inferred | manufacturer inferred |
| Circuit protection, fuses, surge, grounding Layer 7 — Electrical: power distribution (grid to rack) | manufacturer inferred | manufacturer inferred |
| Metering, power quality, monitoring 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
- HV switchgear, GIS, breakers, protection relays layer 7
- Floor PDUs, RPPs, static transfer switches, ATS layer 7
- UPS (static, modular, rotary/DRUPS) & UPS power semis layer 7
- Power smoothing / supercapacitors layer 7
- Paralleling switchgear & generator controls layer 7
- and 4 more on Eaton's page.
Only Siemens
- Building management, controls, environmental sensors layer 6
- DCIM, digital twins, capacity planning layer 11
- Fans and motors layer 6
- Valves and actuators layer 6
- PLCs layer 6
- Detection layer 6
- Suppression layer 6
- Relays layer 7
Questions
- Do Eaton and Siemens compete?
- In this catalog they are both placed on 7 of the same parts, across 1 layer: MV switchgear, E-houses, power skids, MV/LV transformers, LV switchgear, switchboards, panelboards, Busway / busbar trunking and 3 more. 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 Siemens?
- Eaton has 21 placements and Siemens has 15. 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.