Import/export HS code 8504: Electrical transformers and converters
Devices like transformers, rectifiers, and inductors used to change electrical voltage or current
Why this is important if you are looking for potential customers in the UK:
- It helps you understand the market size for your product in the UK.
- It provides you with a list of potential leads who have bought similar products.
* UK only, last 24 months analysed
Imports by country
What this shows: Import market volume by exporter country into the UK.
Top 5 values
| Country | £ |
|---|---|
| China | 1,159,228,343 |
| Netherlands | 792,230,532 |
| Germany | 786,312,470 |
| United States | 382,743,038 |
| Italy | 364,155,630 |
Countries rank shift: first 12 months vs second 12 months
What this shows: Countries are on both sides of the Sankey. Left side is sorted by first 12-month volume, right side by second 12-month volume, so rank changes are visible from line crossings.
Top 10 values
| Country | First 12m £ | Second 12m £ | Delta £ |
|---|---|---|---|
| China | 605,298,619 | 553,929,724 | -51,368,895 |
| Netherlands | 388,816,201 | 403,414,331 | +14,598,130 |
| Germany | 420,483,549 | 365,828,921 | -54,654,628 |
| United States | 200,266,820 | 182,476,218 | -17,790,602 |
| Italy | 201,777,369 | 162,378,261 | -39,399,108 |
| India | 145,178,537 | 141,696,057 | -3,482,480 |
| Spain | 109,309,819 | 139,118,251 | +29,808,432 |
| Ireland | 114,311,362 | 121,690,278 | +7,378,916 |
| France | 104,445,326 | 91,083,604 | -13,361,722 |
| Turkey | 77,355,723 | 85,480,870 | +8,125,147 |
Imports by country of origin
What this shows: Import volume by production origin country. Differences from exporter-country data can indicate re-export routes.
Top 5 values
| Origin | £ |
|---|---|
| China | 1,859,070,074 |
| Germany | 444,622,965 |
| Italy | 430,645,529 |
| United States | 358,497,860 |
| India | 325,599,902 |
Country of origin rank shift: first 12 months vs second 12 months
What this shows: Origin countries are on both sides of the Sankey. Left side is sorted by first 12-month import value, right side by second 12-month import value, so rank changes are visible from line crossings.
Top 10 values
| Origin | First 12m £ | Second 12m £ | Delta £ |
|---|---|---|---|
| China | 947,848,092 | 911,221,982 | -36,626,110 |
| Germany | 245,896,363 | 198,726,602 | -47,169,761 |
| Italy | 234,388,372 | 196,257,157 | -38,131,215 |
| United States | 186,664,067 | 171,833,793 | -14,830,274 |
| India | 176,534,206 | 149,065,696 | -27,468,510 |
| Spain | 137,279,265 | 144,984,893 | +7,705,628 |
| Hungary | 92,424,413 | 125,378,885 | +32,954,472 |
| South Korea | 88,198,357 | 108,878,832 | +20,680,475 |
| Turkey | 76,580,303 | 83,103,787 | +6,523,484 |
| Poland | 65,745,314 | 81,070,376 | +15,325,062 |
Importers across UK regions
What this shows: Number of importing companies by UK ITL2 region.
Top 5 values
| UK region | Companies |
|---|---|
| Berkshire, Buckinghamshire and Oxfordshire | 734 |
| Inner London - West | 689 |
| Surrey, East and West Sussex | 488 |
| Greater Manchester | 444 |
| Hampshire and Isle of Wight | 393 |
UK regions rank shift: first 12 months vs second 12 months
What this shows: UK regions are on both sides of the Sankey. Left side is sorted by first 12-month importer count, right side by second 12-month importer count, so rank changes are visible from line crossings.
Top 10 values
| UK region | First 12m | Second 12m | Delta |
|---|---|---|---|
| Berkshire, Buckinghamshire and Oxfordshire | 572 | 552 | -20 |
| Inner London - West | 474 | 470 | -4 |
| Surrey, East and West Sussex | 370 | 359 | -11 |
| Greater Manchester | 331 | 317 | -14 |
| Hampshire and Isle of Wight | 304 | 289 | -15 |
| West Midlands | 276 | 288 | +12 |
| Bedfordshire and Hertfordshire | 281 | 285 | +4 |
| Leicestershire, Rutland and Northamptonshire | 259 | 268 | +9 |
| Herefordshire, Worcestershire and Warwickshire | 241 | 241 | +0 |
| Outer London - West and North West | 228 | 218 | -10 |
Import volume by transport
What this shows: Import value by transport mode used to bring goods into the UK.
Top 5 values
| Transport | £ |
|---|---|
| Roll on Roll off (RORO) | 2,546,951,813 |
| Sea transport (not vehicle on ferry) | 2,088,513,408 |
| Air transport | 1,383,263,528 |
| Other | 256,635,765 |
| Road transport | 56,853,906 |
Transport rank shift: first 12 months vs second 12 months
What this shows: Transport modes are on both sides of the Sankey. Left side is sorted by first 12-month import value, right side by second 12-month import value, so rank changes are visible from line crossings.
Top 10 values
| Transport | First 12m £ | Second 12m £ | Delta £ |
|---|---|---|---|
| Roll on Roll off (RORO) | 1,319,146,272 | 1,227,805,541 | -91,340,731 |
| Sea transport (not vehicle on ferry) | 1,061,457,637 | 1,027,055,771 | -34,401,866 |
| Air transport | 704,258,010 | 679,005,518 | -25,252,492 |
| Other | 174,659,502 | 81,976,263 | -92,683,239 |
| Road transport | 29,169,075 | 27,684,831 | -1,484,244 |
| Rail transport | 1,434,993 | 1,305,719 | -129,274 |
Import volume by port
What this shows: Import value handled by each UK port.
Top 5 values
| Port | £ |
|---|---|
| Dover | 812,594,673 |
| Felixstowe | 749,717,602 |
| London Heathrow Airport | 495,002,140 |
| Southampton | 477,320,548 |
| Immingham Docks | 300,450,672 |
Port rank shift: first 12 months vs second 12 months
What this shows: Ports are on both sides of the Sankey. Left side is sorted by first 12-month import value, right side by second 12-month import value, so rank changes are visible from line crossings.
Top 10 values
| Port | First 12m £ | Second 12m £ | Delta £ |
|---|---|---|---|
| Dover | 429,060,996 | 383,533,677 | -45,527,319 |
| Felixstowe | 399,495,966 | 350,221,636 | -49,274,330 |
| London Heathrow Airport | 258,913,744 | 236,088,396 | -22,825,348 |
| Southampton | 249,566,497 | 227,754,051 | -21,812,446 |
| Immingham Docks | 158,625,705 | 141,824,967 | -16,800,738 |
| East Midlands Airport | 153,913,189 | 142,245,227 | -11,667,962 |
| Eurotunnel | 150,193,456 | 143,637,886 | -6,555,570 |
| London | 121,446,960 | 138,669,002 | +17,222,042 |
| 000 | 174,659,502 | 81,976,263 | -92,683,239 |
| London Gateway Port | 117,663,016 | 114,999,830 | -2,663,186 |
Importer companies by SIC division
What this shows: Industry breakdown (SIC divisions) of importing companies.
Top 5 values
| SIC | Companies |
|---|---|
| Wholesale trade, except of motor vehicles and motorcycles | 1983 |
| Retail trade, except of motor vehicles and motorcycles | 858 |
| Manufacture of electrical equipment | 635 |
| Manufacture of computer, electronic and optical products | 620 |
| Manufacture of machinery and equipment n.e.c. | 590 |
Importer companies over time
What this shows: Monthly count of unique importing companies.
Latest 5
| Month | Companies |
|---|---|
| 2026-01 | 1974 |
| 2025-11 | 2089 |
| 2025-10 | 2262 |
| 2025-09 | 2067 |
| 2025-08 | 2091 |
Top importers
What this shows: Companies with the highest number of months traded for this HS code.
| Company | Months traded |
|---|---|
| HALFORDS LIMITED | 120 |
| GE MEDICAL SYSTEMS LIMITED | 120 |
| HOWARD BUTLER LIMITED | 120 |
| TDK-LAMBDA UK LIMITED | 120 |
| SIEMENS PLC | 120 |
| GE AVIATION SYSTEMS LIMITED | 120 |
| ELMDENE INTERNATIONAL LIMITED | 120 |
| TRIDONIC UK LIMITED | 120 |
| LUSO ELECTRONIC PRODUCTS LIMITED | 120 |
| B & M RETAIL LIMITED | 120 |
Importer company size by revenue band
What this shows: Distribution of importers across company revenue bands.
Top 5 values
| Revenue | Companies |
|---|---|
| 1m-15m | 3850 |
| 54m+ | 2682 |
| 0-1m | 1199 |
| 15m-54m | 1007 |
| Other | 661 |
Import seasonality
What this shows: Average monthly import pattern from historical data.
Exports by country
What this shows: Export market volume by destination country from the UK.
Top 5 values
| Country | £ |
|---|---|
| Germany | 530,058,445 |
| United States | 301,977,795 |
| Netherlands | 152,139,917 |
| France | 128,025,060 |
| Ireland | 105,578,325 |
Export countries rank shift: first 12 months vs second 12 months
What this shows: Destination countries are on both sides of the Sankey. Left side is sorted by first 12-month export volume, right side by second 12-month export volume, so rank changes are visible from line crossings.
Top 10 values
| Country | First 12m £ | Second 12m £ | Delta £ |
|---|---|---|---|
| Germany | 257,400,915 | 272,657,530 | +15,256,615 |
| United States | 163,877,803 | 138,099,992 | -25,777,811 |
| Netherlands | 73,924,972 | 78,214,945 | +4,289,973 |
| France | 61,177,084 | 66,847,976 | +5,670,892 |
| Ireland | 57,129,876 | 48,448,449 | -8,681,427 |
| Italy | 40,596,636 | 41,633,950 | +1,037,314 |
| Spain | 36,048,169 | 43,318,247 | +7,270,078 |
| Saudi Arabia | 45,915,172 | 17,891,744 | -28,023,428 |
| South Korea | 41,922,952 | 17,549,472 | -24,373,480 |
| China | 37,365,207 | 20,641,212 | -16,723,995 |
Exports by country of origin
What this shows: Export volume by production origin country. For re-exports, indicates where goods originated before UK export.
Top 5 values
| Origin | £ |
|---|---|
| XI | 15,617,171 |
| Denmark | 3,784,840 |
| China | 3,235,364 |
| Austria | 1,900,210 |
| Italy | 1,431,147 |
Export origin countries rank shift: first 12 months vs second 12 months
What this shows: Origin countries are on both sides of the Sankey. Left side is sorted by first 12-month export value, right side by second 12-month export value, so rank changes are visible from line crossings.
Top 10 values
| Origin | First 12m £ | Second 12m £ | Delta £ |
|---|---|---|---|
| XI | 3,179,491 | 12,437,680 | +9,258,189 |
| Denmark | 2,020,430 | 1,764,410 | -256,020 |
| China | 2,066,861 | 1,168,503 | -898,358 |
| Austria | 958,844 | 941,366 | -17,478 |
| Italy | 649,428 | 781,719 | +132,291 |
| Germany | 33,816 | 163,943 | +130,127 |
| Finland | 107,938 | 76,840 | -31,098 |
| Israel | 151,500 | 0 | -151,500 |
| Ireland | 136,234 | 7,849 | -128,385 |
| Brazil | 35,862 | 70,850 | +34,988 |
Export volume by transport
What this shows: Export value by transport mode used to ship goods from the UK.
Top 5 values
| Transport | £ |
|---|---|
| Air transport | 1,028,858,307 |
| Roll on Roll off (RORO) | 1,028,689,925 |
| Sea transport (not vehicle on ferry) | 336,363,518 |
| Other | 27,532,853 |
| Road transport | 5,590,929 |
Export transport rank shift: first 12 months vs second 12 months
What this shows: Transport modes are on both sides of the Sankey. Left side is sorted by first 12-month export value, right side by second 12-month export value, so rank changes are visible from line crossings.
Top 10 values
| Transport | First 12m £ | Second 12m £ | Delta £ |
|---|---|---|---|
| Air transport | 555,896,386 | 472,961,921 | -82,934,465 |
| Roll on Roll off (RORO) | 489,904,972 | 538,784,953 | +48,879,981 |
| Sea transport (not vehicle on ferry) | 187,588,309 | 148,775,209 | -38,813,100 |
| Other | 9,918,583 | 17,614,270 | +7,695,687 |
| Road transport | 5,517,093 | 73,836 | -5,443,257 |
| Rail transport | 64,578 | 139,431 | +74,853 |
Export volume by port
What this shows: Export value handled by each UK port.
Top 5 values
| Port | £ |
|---|---|
| Dover / Eurotunnel | 776,267,760 |
| London Heathrow Airport | 431,987,568 |
| East Midlands Airport | 233,527,336 |
| ZLC | 143,473,506 |
| Southampton | 134,760,850 |
Export port rank shift: first 12 months vs second 12 months
What this shows: Ports are on both sides of the Sankey. Left side is sorted by first 12-month export value, right side by second 12-month export value, so rank changes are visible from line crossings.
Top 10 values
| Port | First 12m £ | Second 12m £ | Delta £ |
|---|---|---|---|
| Dover / Eurotunnel | 376,461,143 | 399,806,617 | +23,345,474 |
| London Heathrow Airport | 232,436,520 | 199,551,048 | -32,885,472 |
| East Midlands Airport | 125,665,063 | 107,862,273 | -17,802,790 |
| ZLC | 78,139,329 | 65,334,177 | -12,805,152 |
| Southampton | 74,440,442 | 60,320,408 | -14,120,034 |
| London Stansted Airport | 57,326,094 | 59,334,769 | +2,008,675 |
| Immingham Docks | 46,529,608 | 60,799,130 | +14,269,522 |
| London Gateway Port | 45,537,636 | 23,813,245 | -21,724,391 |
| Felixstowe | 27,075,347 | 29,229,025 | +2,153,678 |
| Holyhead | 28,614,569 | 27,455,262 | -1,159,307 |
Related HS codes
What this shows: Sibling or child HS codes in the same classification branch.
- 850410 – Ballasts for lamps
- 850421 – Transformers up to 650 kVA
- 850422 – Transformers 650-10,000 kVA
- 850423 – Transformers over 10,000 kVA
- 850431 – Transformers up to 1 kVA
- 850432 – Transformers 1-16 kVA
- 850433 – Transformers 16-500 kVA
- 850434 – Transformers over 500 kVA
- 850440 – Static converters
- 850450 – Various inductors
- 850490 – Parts of transformers and inductors
Quick facts
HS code: 8504
Coverage: United Kingdom, most metrics for the last 24 months
Description: Devices like transformers, rectifiers, and inductors used to change electrical voltage or current