Do Delta Electronics and Siemens compete?

In this catalog they are both placed on 3 of the same parts, across 2 layers: Building management, controls, environmental sensors, Busway / busbar trunking, 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, Delta Electronics or Siemens?

Delta Electronics has 18 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.

Delta Electronics vs Siemens

Delta Electronics and Siemens are both placed on 3 of the same AI data center parts in this catalog, spanning layers 6, 7. Delta Electronics appears on 18 parts in total and Siemens on 15.

At a glance

	Delta Electronics	Siemens
Ownership	public	public
Headquarters	Taipei, Taiwan	Munich, Germany
Primary listing	2308.TW	SIE.DE
Market cap	4.05T TWD	196.3B EUR
Parts placed	18	15
Layers covered	6	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

Building management, controls, environmental sensors — The building management system, PLCs, and environmental sensors that monitor and automatically control chillers, air handlers, pumps, and dampers across the facility.
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.
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 3 parts both make

Part	Delta Electronics	Siemens
Building management, controls, environmental sensors Layer 6 — Facility cooling & HVAC	manufacturer disclosed Controls	manufacturer disclosed
Busway / busbar trunking 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 Delta Electronics

Switch systems & white-box ODMs layer 3
Board-level power: VRMs, power stages, PoL, power semis layer 4
Power shelves & PSUs layer 4
Fans layer 4
In-rack busbar & power whips layer 4
Rack PDUs layer 4
Air-cooled heatsinks & vapor chambers layer 4
Direct-to-chip cold plates layer 5
Rack manifolds layer 5
Coolant distribution units layer 5
and 5 more on Delta Electronics's page.

Only Siemens

MV switchgear, E-houses, power skids layer 7
MV/LV transformers layer 7
LV switchgear, switchboards, panelboards layer 7
Circuit protection, fuses, surge, grounding layer 7
Metering, power quality, monitoring layer 7
DCIM, digital twins, capacity planning layer 11
Fans and motors layer 6
Valves and actuators layer 6
PLCs layer 6
Detection layer 6
and 2 more on Siemens's page.

Questions

Do Delta Electronics and Siemens compete?: In this catalog they are both placed on 3 of the same parts, across 2 layers: Building management, controls, environmental sensors, Busway / busbar trunking, 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, Delta Electronics or Siemens?: Delta Electronics has 18 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.