This is a list of the power supply systems that are, or have been, used for railway electrification.

Note that the voltages are nominal and vary depending on load and distance from the substation.

, many trams and trains use on-board solid-state electronics to convert these supplies to run three-phase AC traction motors.

Tram electrification systems are listed here.

Key to the tables below Volts: voltage or volt Current: DC = direct current # Hz = frequency in hertz (alternating current (AC)) AC supplies are usually single-phase (1φ) except where marked three-phase (3φ). Conductors: overhead line or conductor rail, usually a third rail to one side of the running rails. Conductor rail can be: top contact: oldest, least safe, most affected by ice, snow, rain and leaves. Protection boards are installed on most top contact systems, which increases safety and reduces these affections. side contact: newer, safer, less affected by ice, snow, rain and leaves bottom contact: newest, safest, least affected by ice, snow, rain and leaves Red background indicates voltages no longer in use on the indicated location

Systems using standard voltages

Voltages are defined by two standards: BS EN 50163 and IEC 60850.

Overhead systems 600 V DC Country Location Name of system Notes Many tram systems This voltage is mostly used by older tram systems worldwide but by a few modern ones as well. See List of tram systems by gauge and electrification. Germany Trossingen Trossingen Railway Hungary Budapest Budapest Metro Line M1 Japan Chōshi, Chiba Chōshi Electric Railway Kyoto, Kyoto Eizan Electric Railway Kanagawa Enoshima Electric Railway Matsuyama, Ehime Iyotetsu Takahama Line Shizuoka, Shizuoka Shizuoka Railway Romania Sibiu county Sibiu-Rășinari Narrow Gauge Railway Part of the former Sibiu tram line Spain Madrid Madrid Metro Lines 1, 4, 5 and 9. In process to be converted to 1500 V United Kingdom Crich, England National Tramway Museum United States Boston MBTA subway Green and Mattapan Lines, the at-grade section of Blue Line northeast of Airport station Chicago Chicago "L" Yellow Line, formerly ran catenary wire as a section of the former Chicago North Shore and Milwaukee Railroad. It was fully converted to third rail in 2004. Cleveland RTA Rapid Transit Red Line Iowa Iowa Traction Railway

750 V DC Country Location Name of system Notes Many tram systems This voltage is used for most modern tram and light rail systems. See List of tram systems by gauge and electrification Austria Upper Austria Local lines of Stern & Hafferl Also listed as having 1500 V and 600 V lines AustriaSwitzerland Rhine / Lake Constance Internationale Rheinregulierungsbahn Construction railway for the regulation works of the river Rhine near its outfall into Lake Constance, now preserved. The river forms the border between Austria and Switzerland, and the railway operated in both countries.CanadaTorontoToronto SubwayLine 5 Eglinton and Line 6 Finch West Germany Karlsruhe to Bad Herrenalb with a branch to Ittersbach Albtalbahn Railway of the Upper Rhine Hong Kong Hong Kong MTR MTR Light Rail Japan Hamamatsu, Shizuoka Enshū Railway Hakone, Kanagawa Hakone Tozan Railway Line Between Hakone-Yumoto and Gōra Ehime Iyotetsu Yokogawara Line and Gunchū Line Yokkaichi, Mie Yokkaichi Asunarou Railway Utsube Line, Hachiōji Line Mie Sangi Railway Hokusei Line Netherlands The Hague, Zoetermeer, Rotterdam and adjacent cities Randstadrail Rotterdam Rotterdam Metro North of Capelsebrug station overhead wiresPhilippinesMetro Manila Manila LRT Line 1 (Manila Light Rail Transit System) Between Dr. Santos and Fernando Poe Jr. Manila MRT Line 3 (Manila Metro Rail Transit System) Between North Avenue and Taft Avenue Switzerland Canton of Aargau Menziken–Aarau–Schöftland railway line Republic of China (Taiwan) New Taipei New Taipei Metro: all Light Rail lines Turkey Adana Adana Metro Istanbul Istanbul Metro Line M1 and M5

1,200 V DC Country Location Name of system Notes Cuba Havana – Matanzas and branches Ferrocarriles Nacionales de Cuba Originally (and still known as) the Hershey Electric Railway Germany Lusatia gauge mining railways in the lignite district Spain Barcelona, Catalonia Barcelona Metro Uses an overhead conductor rail/beam system Palma – Sóller, Mallorca Sóller Railway Switzerland Canton of Bern / canton of Solothurn Aare Seeland mobil (ASm) Dietikon, canton of Zurich – Wohlen, canton of Aargau Bremgarten-Dietikon-Bahn Zurich – Esslingen, canton of Zurich Forchbahn Forchbahn proper only; Forchbahn trains access their Zurich terminus via the Zurich tram network, which is electrified at 600 V DC. The rolling stock is equipped to run off both voltages. Lugano – Ponte Tresa, canton of Ticino Ferrovia Lugano–Ponte Tresa (FLP) Frauenfeld, canton of Thurgau – Wil, canton of St. Gallen Frauenfeld-Wil-Bahn Meiringen – Innertkirchen, canton of Bern Meiringen–Innertkirchen Bahn United States Baltimore–Annapolis, Maryland Baltimore and Annapolis Railroad 1914–1950 Los Angeles – Inland Empire, California Pacific Electric Upland–San Bernardino Operated 1914–1950. 600 V in city limits California Sacramento Northern Railway Operated 1910–1936. Converted to 1,500 V. The southern division was built by the Oakland, Antioch and Eastern Railway. East Bay, California East Bay Electric Lines 1911–1941 Oregon Oregon Electric Railway 1912–1945

1,500 V DC Country Location Name of system Notes Argentina Buenos Aires Buenos Aires Metro Lines A, C, D, E and H Tren de la Costa Suburban line Australia Melbourne Melbourne Suburban Railways Regional New South Wales NSW TrainLink Intercity Newcastle and Central Coast, Blue Mountains to Lithgow and South Coast to Kiama Sydney Sydney Trains Sydney Metro Metro North West & Bankstown Line (partially converted from Sydney Trains). Completely new lines Sydney Metro West and Sydney Metro Western Sydney Airport will use Bangladesh Dhaka Dhaka Metro Rail MRT Line 6 (Dhaka Metro) Brazil São Paulo São Paulo Metro Lines 4 and 5 Bulgaria Sofia Sofia Metro Line 3 Gorna Banya – Hadzhi Dimitar Canada Montreal Réseau express métropolitain Incl. Deux-Montagnes line that was built by CNoR in 1918 as 2400 V DC, converted to 3000 V DC in the 1980s, converted to 25 kV 60 Hz in 1995 by the MTQ, being converted to light-metro standard and 1500 V DC Ottawa O-Train Line 1 only; Line 2 is diesel LRT. China Beijing Beijing Subway Lines 6, 14 and 16 Changchun Changchun Rail Transit Lines 1 and 2 Changsha Changsha Metro Changzhou Changzhou Metro Chengdu Chengdu Metro Except lines 17, 18 and 19 Chongqing Chongqing Rail Transit Lines 1, 4, 5, 6, 10 and Loop Line Dalian Dalian Metro Dongguan Dongguan Rail Transit Fushun Fushun Electric Railway Fuzhou Fuzhou Metro Guangzhou Guangzhou Metro Except Lines 4, 5, 6, 14 and 21, but overhead wires installed in depots. Guiyang Guiyang Metro HainingHangzhou-Haining Intercity Rail Hangzhou Hangzhou Metro Harbin Harbin Metro Hefei Hefei Metro Hohhot Hohhot Metro Jinan Jinan Metro Lanzhou Lanzhou Metro Nanchang Nanchang Metro Nanjing Nanjing Metro Nanning Nanning Metro Ningbo Ningbo Rail Transit Line 4 uses third rail for returning current Shanghai Shanghai Metro Except Lines 16 and 17, but overhead wires installed in the depot for line 16.ShaoxingShaoxing Metro Shenyang Shenyang Metro Shenzhen Shenzhen Metro Except Lines 3 and 6, but overhead wires installed in the depot for line 6. Shijiazhuang Shijiazhuang Metro Suzhou Suzhou Metro Tianjin Tianjin Metro Lines 5, 6 and 9 only Ürümqi Ürümqi Metro Wuhan Wuhan Metro Line 6 only Xi’an Xi'an Metro Xiamen Xiamen Metro Xuzhou Xuzhou Metro Zhengzhou Zhengzhou Metro Colombia Medellín Medellín Metro Lines A and B Peru Lima Lima Metro Czech Republic Tábor – Bechyně Správa železnic Tábor – Bechyně line only (24 km, built in 1903) Dominican Republic Santo Domingo Santo Domingo Metro Egypt Cairo Cairo Metro Line 1 France Société Nationale des Chemins de fer (SNCF) 25 kV AC used on new high speed lines (TGV) and in the north (see below) Hong KongHong Kong Mass Transit Railway Except East Rail line and Tuen Ma line which use (see below) and the light rail which uses 750 V DC Hungary Budapest Budapest Cog-wheel Railway Converted from 550 V DC (city trams nominal voltage at that time) during the 1973 reconstruction. Indonesia Jakarta KRL JabodetabekJakarta MRT Yogyakarta-Solo KRL Commuterline Yogyakarta–Solo Ireland Dublin Dublin Area Rapid Transit Israel Tel Aviv Tel Aviv Light Rail Red Line runs partially as a premetro Italy Rome Rome Metro Line A, Line B, Line Roma-Ostia Lido Japan Japan Railways (JR) lines Most electrified lines in Kantō, Chūbu, Kansai, Chūgoku, and Shikoku (except Shinkansen and Hokuriku region) Most private railway linesSee Railway electrification in Japan for more details including exceptions Most subway lines South Korea Seoul National Capital Area Seoul Subway Except Korail Subway Line (except Line 3)(see below) Busan Busan Subway Daegu Daegu Subway Daejeon Daejeon Subway Gwangju Gwangju Subway Incheon Incheon Subway Line 1 Mexico Guadalajara SITEUR Line 3 Mexico City STC Line 12 Monterrey Sistema de Transporte Colectivo Metrorrey Netherlands Nederlandse Spoorwegen – Dutch Railways (NS) 25 kV AC used on high speed lines and freight line Betuweroute (see below); The existing 1500 V DC lines might be converted to 3 kV DC. New Zealand Wellington Wellington suburban Except Wairarapa Line beyond Upper Hutt. Since 2011, the nominal voltage was 1600 V but with the same tolerances as 1500 V (i.e. 1300–1800 V), making it backwards-compatible with 1500 V rolling stock. Since May 2016 the operating voltage was increased to 1700 V DC following the full introduction of the Matangi EMUs. Philippines Metro Manila Manila MRT Makati Intra-city Subway (Line 5) and Metro Manila Subway (Line 9) only. Line 7 uses 750 V DC third rail. Metro ManilaRizal Manila LRT Line 2 only. Line 1 uses 750 V DC. Metro ManilaCentral LuzonLaguna Philippine National Railways North–South Commuter Railway Portugal Lisbon, Oeiras and Cascais Linha de Cascais To be converted to 25 kV AC. Singapore Mass Rapid Transit North East Line, operated by SBS Transit Slovakia Tatra Mountains in the area of Poprad Tatra Electric Railway Spain Catalonia Ferrocarrils de la Generalitat de Catalunya Madrid ADIF Only Cercedilla-Cotos line Mallorca Serveis Ferroviaris de Mallorca North coast (Asturias-Leon-Cantabria-Basque Country) FEVE Basque Country Euskotren Trena Valencian Community Ferrocarrils de la Generalitat Valenciana Sweden Stockholm Roslagsbanan Switzerland Aigle – Leysin, canton of Vaud Chemin de fer Aigle–Leysin (AL) Aigle, Vaud – Champéry, canton of Valais Chemin de fer Aigle–Ollon–Monthey–Champéry (AOMC) Aigle – Les Diablerets, canton of Vaud Chemin de fer Aigle–Sépey–Diablerets (ASD) Interlaken – Lauterbrunnen / Grindelwald, canton of Bern Berner Oberland Bahn (BOB) Canton of Jura Chemins de fer du Jura (CJ) Metre gauge lines only Lausanne – Bercher, canton of Vaud Chemin de fer Lausanne–Échallens–Bercher (LEB) Nyon – La Cure, canton of Vaud Chemin de fer Nyon-St-Cergue-Morez (NStCNM) Converted in the 1980s from 2200 V DC Vitznau / Goldau – Rigi Rigi Bahnen (VRB/ARB) Wilderswil – Schynige Platte, canton of Bern Schynige Platte Bahn (SPB) Liestal – Waldenburg, canton of Basel-Country Waldenburgerbahn (WB) Lauterbrunnen – Grindelwald, canton of Bern Wengernalpbahn (WAB) Turkey Bursa Bursaray Istanbul Istanbul Metro Line M3, M4, M7, M8, M9 and M11 United Kingdom Newcastle, Sunderland, Gateshead and Tyneside Tyne & Wear Metro Light rail United States Chicago Metra Electric District California Sacramento Northern Railway operated 1936– Maryland Purple Line Light rail under construction Northern Indiana & Chicago South Shore Line Oregon Southern Pacific Red Electric Lines 1914–1929 Seattle Link light rail 1 and 2 lines only

3 kV DC