Market overview
The global power supply unit market is worth USD 5.1 bn in 2026 and is forecast to reach USD 8.9 bn by 2036, growing at a 5.8% CAGR. China is the largest country market and DIN-rail is the largest by mounting segment.
| Scope | Industrial power supply units that convert mains power to regulated DC for control cabinets and automation: DIN-rail, panel-mount and open-frame supplies, including redundancy modules and UPS-type units. |
|---|---|
| Industry | Process Automation |
| Value 2025 | USD 4.8 bn |
| Value 2026 | USD 5.1 bn |
| Value 2036 | USD 8.9 bn |
| CAGR 2026-2036 | 5.8% |
| Volume 2026 | 57.7 million units |
| Volume 2036 | 96.5 million units |
| Average price 2026 | USD 87.7 per unit |
| Report price | Starts from USD 1,999 |
| Published | November 2026 |
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Power Supply Unit market size and forecast, 2026-2036
Source: Compare Market Research analysis.
© 2026 Compare Market Research. All rights reserved.
| Year | Market value |
|---|---|
| 2026 | USD 5.1 bn |
| 2027 | USD 5.4 bn |
| 2028 | USD 5.7 bn |
| 2029 | USD 6.0 bn |
| 2030 | USD 6.3 bn |
| 2031 | USD 6.7 bn |
| 2032 | USD 7.1 bn |
| 2033 | USD 7.5 bn |
| 2034 | USD 8.0 bn |
| 2035 | USD 8.4 bn |
| 2036 | USD 8.9 bn |
Power Supply Unit market segmentation
By mounting
Source: Compare Market Research analysis.
© 2026 Compare Market Research. All rights reserved.
| Segment | Share 2026 | Share 2036 | Value 2026 | CAGR 2026-36 |
|---|---|---|---|---|
| DIN-rail | 52.0% | 53.9% | USD 2.6 bn | 6.2% |
| Panel and chassis mount | 30.0% | 28.3% | USD 1.5 bn | 5.2% |
| Open-frame and other | 18.0% | 17.8% | USD 912 mn | 5.7% |
By output power
Source: Compare Market Research analysis.
© 2026 Compare Market Research. All rights reserved.
| Segment | Share 2026 | Share 2036 | Value 2026 | CAGR 2026-36 |
|---|---|---|---|---|
| Below 100 W | 44.0% | 40.9% | USD 2.2 bn | 5.0% |
| 100 to 500 W | 38.0% | 38.9% | USD 1.9 bn | 6.0% |
| Above 500 W | 18.0% | 20.2% | USD 912 mn | 7.0% |
By end use
| Segment | Share 2026 | Share 2036 | Value 2026 | CAGR 2026-36 |
|---|---|---|---|---|
| Industrial automation | 40.0% | 41.7% | USD 2.0 bn | 6.2% |
| Building and infrastructure | 20.0% | 18.9% | USD 1.0 bn | 5.2% |
| Energy and process | 18.0% | 17.9% | USD 912 mn | 5.7% |
| Transportation | 12.0% | 12.5% | USD 608 mn | 6.2% |
| Other | 10.0% | 9.0% | USD 506 mn | 4.7% |
By phase
| Segment | Share 2026 | Share 2036 | Value 2026 | CAGR 2026-36 |
|---|---|---|---|---|
| Single-phase | 52.0% | 49.8% | USD 2.6 bn | 5.3% |
| Three-phase | 38.0% | 38.9% | USD 1.9 bn | 6.0% |
| DC-input | 10.0% | 11.3% | USD 506 mn | 7.1% |
By output voltage
| Segment | Share 2026 | Share 2036 | Value 2026 | CAGR 2026-36 |
|---|---|---|---|---|
| 5 V and 12 V | 21.0% | 19.2% | USD 1.1 bn | 4.9% |
| 24 V | 57.0% | 56.2% | USD 2.9 bn | 5.7% |
| 48 V and above | 22.0% | 24.6% | USD 1.1 bn | 7.0% |
Top 25 countries for power supply unit by revenue
Countries are ranked by revenue earned from sales in the country, not by where the product is made. The ten largest hold 83.0% of 2026 revenue and the 25 countries below together hold 95.4%.
Source: Compare Market Research analysis.
© 2026 Compare Market Research. All rights reserved.
| # | Country | Value 2026 | Share 2026 | Value 2036 | CAGR 2026-36 |
|---|---|---|---|---|---|
| 1 | China | USD 1.3 bn | 26.0% | USD 2.6 bn | 7.1% |
| 2 | United States | USD 760 mn | 15.0% | USD 1.2 bn | 4.6% |
| 3 | Germany | USD 557 mn | 11.0% | USD 837 mn | 4.2% |
| 4 | Japan | USD 354 mn | 7.0% | USD 507 mn | 3.6% |
| 5 | India | USD 253 mn | 5.0% | USD 632 mn | 9.6% |
| 6 | Taiwan | USD 228 mn | 4.5% | USD 374 mn | 5.1% |
| 7 | South Korea | USD 228 mn | 4.5% | USD 392 mn | 5.6% |
| 8 | Italy | USD 177 mn | 3.5% | USD 276 mn | 4.5% |
| 9 | France | USD 177 mn | 3.5% | USD 276 mn | 4.5% |
| 10 | United Kingdom | USD 152 mn | 3.0% | USD 240 mn | 4.7% |
| 11 | Mexico | USD 117 mn | 2.3% | USD 227 mn | 6.8% |
| 12 | Netherlands | USD 96 mn | 1.9% | USD 160 mn | 5.2% |
| 13 | Spain | USD 80 mn | 1.6% | USD 132 mn | 5.2% |
| 14 | Canada | USD 65 mn | 1.3% | USD 116 mn | 5.9% |
| 15 | Turkey | USD 54 mn | 1.1% | USD 105 mn | 6.8% |
| 16 | Poland | USD 45 mn | 0.9% | USD 86 mn | 6.8% |
| 17 | Thailand | USD 36 mn | 0.7% | USD 71 mn | 6.9% |
| 18 | Switzerland | USD 30 mn | 0.6% | USD 50 mn | 5.1% |
| 19 | Indonesia | USD 25 mn | 0.5% | USD 48 mn | 6.8% |
| 20 | Belgium | USD 20 mn | 0.4% | USD 34 mn | 5.3% |
| 21 | Sweden | USD 17 mn | 0.3% | USD 28 mn | 5.1% |
| 22 | Austria | USD 14 mn | 0.3% | USD 23 mn | 5.4% |
| 23 | Czech Republic | USD 12 mn | 0.2% | USD 19 mn | 4.8% |
| 24 | Malaysia | USD 9.6 mn | 0.2% | USD 19 mn | 6.9% |
| 25 | Vietnam | USD 7.6 mn | 0.1% | USD 15 mn | 7.1% |
| Rest of world | USD 233 mn | 4.6% | USD 416 mn | 6.0% |
Source: Compare Market Research analysis.
© 2026 Compare Market Research. All rights reserved.
Competitive landscape
Group 1: Global leaders
- Delta Electronics
- Siemens
- Phoenix Contact
- Mean Well
- Omron
- Schneider Electric
- ABB
Group 2: Regional and specialist players
- PULS
- TDK-Lambda
- Murrelektronik
- Weidmüller
- WAGO
- Traco Power
- Advanced Energy
- Lite-On
- Cincon
Group 3: Emerging and niche players
- Cosel
- XP Power
- Recom
- Mornsun
- Block Transformatoren-Elektronik
- Bicker Elektronik
Research methodology
Every figure on this page comes from the research framework that we apply to all of the markets we cover. The 2025 base for the power supply unit market is built from the volume sold and the price that buyers pay, and is cross-checked against the size of the wider industry the market belongs to. Where a market can be sized in more than one way, the routes are compared before a figure is set.
The forecast runs year by year from the 2025 base to 2036. Growth in each year reflects demand from the industries that buy the product, adoption of new technology, pricing, regulation and replacement cycles. Volume and price are modelled together, so revenue in each year equals volume multiplied by average price. The 2026 to 2036 compound annual growth rate of 5.8% is calculated from the resulting values.
The market is divided by mounting, by output power, by end use, by phase, by output voltage. The 25 largest countries are ranked by revenue earned from sales to buyers in each country, not by where the product is made. Segment values and country values add up to the market total in every year, and every report is checked for consistency before it is published.
Companies are placed in three groups: global leaders, regional and specialist players, and emerging and niche players. The groups describe how companies compete in the market. They are not a ranking and they are not market shares.
Our analysts also carry out primary research. Customized reports add interviews with key opinion leaders, such as senior executives, technical specialists and buyers, to test the assumptions behind the numbers for the question being asked.
Frequently asked questions
How big is the power supply unit market?
The global power supply unit market is estimated at USD 4.8 bn in 2025 and USD 5.1 bn in 2026.
How fast will the power supply unit market grow?
It is forecast to reach USD 8.9 bn by 2036, a compound annual growth rate of 5.8% from 2026, an increase of USD 3.8 bn.
Which country is the largest market for power supply unit?
China is the largest market by revenue at USD 1.3 bn in 2026, 26.0% of the global total. The three largest countries together hold 52.0%.
Which country is growing fastest?
Among the ten largest markets, India is growing fastest at 9.6% a year from 2026 to 2036.
Which power supply unit segment is largest?
In the by mounting split, DIN-rail is the largest segment with 52.0% of 2026 revenue.
Who are the leading power supply unit companies?
Global leaders include Delta Electronics, Siemens, Phoenix Contact, Mean Well.
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