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Power Supply Unit Market Size, Share and Forecast 2026-2036

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.

USD 5.1 bnMarket size 2026
USD 8.9 bnForecast 2036
5.8%CAGR 2026-2036
ChinaLargest country

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5 segmentation views25 countries2026 to 2036 yearly forecast

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.

ScopeIndustrial 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.
IndustryProcess Automation
Value 2025USD 4.8 bn
Value 2026USD 5.1 bn
Value 2036USD 8.9 bn
CAGR 2026-20365.8%
Volume 202657.7 million units
Volume 203696.5 million units
Average price 2026USD 87.7 per unit
Report priceStarts from USD 1,999
PublishedNovember 2026

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Power Supply Unit market size and forecast, 2026-2036

Exhibit 1The global power supply unit market is forecast to grow from USD 5.1 bn in 2026 to USD 8.9 bn by 2036, a rise of 76%Global market value in USD: 2025 base year, 2026 estimate and forecast to 2036. CAGR 2026 to 2036: 5.8%
Power Supply Unit market value, 2025 to 2036Market value by year. 2025: USD 4.8 bn; 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. Compound annual growth rate 2026 to 2036: 5.8%.20255.1 bn20266.7 bn20318.9 bn20365.8% CAGR

Source: Compare Market Research analysis.
© 2026 Compare Market Research. All rights reserved.

YearMarket value
2026USD 5.1 bn
2027USD 5.4 bn
2028USD 5.7 bn
2029USD 6.0 bn
2030USD 6.3 bn
2031USD 6.7 bn
2032USD 7.1 bn
2033USD 7.5 bn
2034USD 8.0 bn
2035USD 8.4 bn
2036USD 8.9 bn

Power Supply Unit market segmentation

By mounting

Exhibit 2DIN-rail is the largest segment by mounting, with 52.0% of 2026 revenueEstimated share of 2026 global revenue, by mounting
Power Supply Unit market share by mounting, 2026Share of 2026 revenue by mounting. DIN-rail: 52.0%; Panel and chassis mount: 30.0%; Open-frame and other: 18.0%.DIN-rail52.0%Panel and chassis mount30.0%Open-frame and other18.0%

Source: Compare Market Research analysis.
© 2026 Compare Market Research. All rights reserved.

SegmentShare 2026Share 2036Value 2026CAGR 2026-36
DIN-rail52.0%53.9%USD 2.6 bn6.2%
Panel and chassis mount30.0%28.3%USD 1.5 bn5.2%
Open-frame and other18.0%17.8%USD 912 mn5.7%

By output power

Exhibit 3100 to 500 W adds the most revenue by output power, growing from USD 1.9 bn in 2026 to USD 3.5 bn by 2036Estimated revenue in USD by output power, 2026 and 2036 forecast
Power Supply Unit market by output power, 2026 and 2036Revenue by output power in 2026 and 2036. Below 100 W: USD 2.2 bn in 2026, USD 3.6 bn in 2036, change +63%; 100 to 500 W: USD 1.9 bn in 2026, USD 3.5 bn in 2036, change +80%; Above 500 W: USD 912 mn in 2026, USD 1.8 bn in 2036, change +97%.20262036 forecastChangeBelow 100 W+63%2.2 bn3.6 bn100 to 500 W+80%1.9 bn3.5 bnAbove 500 W+97%912 mn1.8 bn

Source: Compare Market Research analysis.
© 2026 Compare Market Research. All rights reserved.

SegmentShare 2026Share 2036Value 2026CAGR 2026-36
Below 100 W44.0%40.9%USD 2.2 bn5.0%
100 to 500 W38.0%38.9%USD 1.9 bn6.0%
Above 500 W18.0%20.2%USD 912 mn7.0%

By end use

SegmentShare 2026Share 2036Value 2026CAGR 2026-36
Industrial automation40.0%41.7%USD 2.0 bn6.2%
Building and infrastructure20.0%18.9%USD 1.0 bn5.2%
Energy and process18.0%17.9%USD 912 mn5.7%
Transportation12.0%12.5%USD 608 mn6.2%
Other10.0%9.0%USD 506 mn4.7%

By phase

SegmentShare 2026Share 2036Value 2026CAGR 2026-36
Single-phase52.0%49.8%USD 2.6 bn5.3%
Three-phase38.0%38.9%USD 1.9 bn6.0%
DC-input10.0%11.3%USD 506 mn7.1%

By output voltage

SegmentShare 2026Share 2036Value 2026CAGR 2026-36
5 V and 12 V21.0%19.2%USD 1.1 bn4.9%
24 V57.0%56.2%USD 2.9 bn5.7%
48 V and above22.0%24.6%USD 1.1 bn7.0%

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%.

Exhibit 4China is the largest country market at USD 1.3 bn in 2026, and the three largest countries hold 52.0% of global revenueEstimated 2026 revenue in USD and share of the global market, ten largest countries
Power Supply Unit market, ten largest countries in 2026Ten largest countries by 2026 revenue. China: USD 1.3 bn, 26.0%; United States: USD 760 mn, 15.0%; Germany: USD 557 mn, 11.0%; Japan: USD 354 mn, 7.0%; India: USD 253 mn, 5.0%; Taiwan: USD 228 mn, 4.5%; South Korea: USD 228 mn, 4.5%; Italy: USD 177 mn, 3.5%; France: USD 177 mn, 3.5%; United Kingdom: USD 152 mn, 3.0%.China1.3 bn 26.0%United States760 mn 15.0%Germany557 mn 11.0%Japan354 mn 7.0%India253 mn 5.0%Taiwan228 mn 4.5%South Korea228 mn 4.5%Italy177 mn 3.5%France177 mn 3.5%United Kingdom152 mn 3.0%

Source: Compare Market Research analysis.
© 2026 Compare Market Research. All rights reserved.

#CountryValue 2026Share 2026Value 2036CAGR 2026-36
1ChinaUSD 1.3 bn26.0%USD 2.6 bn7.1%
2United StatesUSD 760 mn15.0%USD 1.2 bn4.6%
3GermanyUSD 557 mn11.0%USD 837 mn4.2%
4JapanUSD 354 mn7.0%USD 507 mn3.6%
5IndiaUSD 253 mn5.0%USD 632 mn9.6%
6TaiwanUSD 228 mn4.5%USD 374 mn5.1%
7South KoreaUSD 228 mn4.5%USD 392 mn5.6%
8ItalyUSD 177 mn3.5%USD 276 mn4.5%
9FranceUSD 177 mn3.5%USD 276 mn4.5%
10United KingdomUSD 152 mn3.0%USD 240 mn4.7%
11MexicoUSD 117 mn2.3%USD 227 mn6.8%
12NetherlandsUSD 96 mn1.9%USD 160 mn5.2%
13SpainUSD 80 mn1.6%USD 132 mn5.2%
14CanadaUSD 65 mn1.3%USD 116 mn5.9%
15TurkeyUSD 54 mn1.1%USD 105 mn6.8%
16PolandUSD 45 mn0.9%USD 86 mn6.8%
17ThailandUSD 36 mn0.7%USD 71 mn6.9%
18SwitzerlandUSD 30 mn0.6%USD 50 mn5.1%
19IndonesiaUSD 25 mn0.5%USD 48 mn6.8%
20BelgiumUSD 20 mn0.4%USD 34 mn5.3%
21SwedenUSD 17 mn0.3%USD 28 mn5.1%
22AustriaUSD 14 mn0.3%USD 23 mn5.4%
23Czech RepublicUSD 12 mn0.2%USD 19 mn4.8%
24MalaysiaUSD 9.6 mn0.2%USD 19 mn6.9%
25VietnamUSD 7.6 mn0.1%USD 15 mn7.1%
Rest of worldUSD 233 mn4.6%USD 416 mn6.0%
Exhibit 5China and United States account for 45% of the USD 3.8 bn the market is forecast to add by 2036Forecast revenue added between 2026 and 2036 by country, in USD
Power Supply Unit market, where the growth to 2036 comes fromRevenue added between 2026 and 2036. Market value 2026: USD 5.1 bn. China: +USD 1.3 bn; United States: +USD 433 mn; India: +USD 379 mn; Germany: +USD 279 mn; South Korea: +USD 164 mn; 20 other countries: +USD 1.1 bn; Rest of world: +USD 184 mn. Market value 2036: USD 8.9 bn.Market value 20265.1 bnChina+1.3 bnUnited States+433 mnIndia+379 mnGermany+279 mnSouth Korea+164 mn20 other countries+1.1 bnRest of world+184 mnMarket value 20368.9 bn

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.

Read the full research methodology

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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