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Database: 365,228(8 Aug 2026)

DC DC switching power supply

DC DC switching power supply, Total:261 items.

The international standard classification for "DC DC switching power supply" includes: Rectifiers. Convertors. Stabilized power supply , Components and accessories in general , Power capacitors , Electric traction equipment , Wastes , Other mining equipment .

The Chinese standard classification for "DC DC switching power supply" includes: AC/DC supply units , Telecommunication power supply equipment , High voltage switchgear , Electric traction equipment , Electric tool , Environmental protection equipment , Electromagnetic Measurement , Coal mine special equipment .


Professional Standard - Railway

Professional Standard - Energy

  • NB/T 10461-2020 AC-DC switching power supply-Technology specification for abnormal electronic component test
  • NB/T 10458-2029 AC-DC switching power supply semi-anechoic indoor air noise test method
  • NB/T 10296-2019 Technology specification of AC-DC switching power supply for feedback loop
  • NB/T 42039-2014 Wide voltage input and regulated output isolated DC?DC model power supply
  • NB/T 10457-2028 AC-DC switching power supply cooling fan air volume and pressure test method
  • NB/T 10458-2020 AC-DC switching power supply-Airborne noise by hemi-anechoic room-Test methods
  • NB/T 10462-2020 AC-DC switching power supply-Technology specification for near field radiated, radio-frequency, electromagnetic field immunity test
  • NB/T 10456-2028 Technical Specifications for Drop Reliability Test of AC-DC Switching Power Supplies
  • NB/T 10457-2020 AC-DC switching power supply-Air flow and wind pressure for cooling fan-Test methods
  • NB/T 10456-2020 AC-DC switching power supply-Technology specification for fall test
  • NB/T 10297-2019 Technology specification of AC-DC switching power supply for electronic components derating
  • NB/T 10288-2019 Highly accelerated life test methods of AC-DC switching power supply

State Grid Corporation of China

  • Q/GDW 504-2010 Guidelines for State Evaluation of HVDC High-Speed DC Switches

Military Standard of the People's Republic of China-General Armament Department

  • GJB 4538A-2017 Specifications for military switch-type high-power DC test power supplies
  • GJB 2213-1994 Calibration procedures for DC small current standard sources
  • GJB 5283-2004 Specifications for excitation reversal switch of ship DC motors
  • GJB 8638-2015 Specifications for excitation reversal switch of ship DC motors
  • GJB 4538-2002 Specifications for military switch-type high-power DC test power supplies

Professional Standard - Post and Telecommunication

General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China

  • GB/T 22691-2008 DC switches for battery power tools
  • GB/T 34865-2017 Capacitors for high voltage direct current transfer switches
  • GB/T 25307-2010 High-voltage direct current by-pass switches
  • GB/T 25890.4-2010 Railway applications—Fixed installations—DC switchgear—Part 4:Outdoor d.c.disconnectors switch-disconnectors and earthing switches
  • GB/T 25309-2010 High-voltage direct current transfer switches
  • GB/T 25890.6-2010 Railway applications—Fixed installations—DC switchgear—Part 6:DC switchgear assemblies
  • GB/T 25091-2010 High-voltage direct-current disconnectors and earthing switches
  • GB/T 25890.2-2010 Railway applications—Fixed installations—DC switchgear—Part 2:DC circuit breakers
  • GB/T 25890.3-2010 Railway applications—Fixed installations—DC switchgear—Part 3:Indoor d.c.disconnectors switch disconnectors and earthing switches
  • GB/T 21560.6-2008 Low-voltage power supplies d.c. output - Part 6: Requirements for low-voltage power supplies assessed performance

Professional Standard - Machinery

Professional Standard - Education

Professional Standard - Energy and Power Planning

  • DL/T 459-2017 DC power supply equipment for power system
  • DL/T 2227-2021 Selection guide to Hv DC transfer switches for ±800 kV and above UHVDC transmission system

Group Standards of the People's Republic of China

National Metrological Verification Regulations of the People's Republic of China

National Metrological Technical Specifications of the People's Republic of China

Professional Standard - Coal

Korean Agency for Technology and Standards (KATS)

  • KS C 4300-2006 Switched mode power supply
  • KS C IEC 61992-3-2019 Railway applications — Fixed installations — DC switchgear — Part 3: Indoor d.c. disconnectors, switch-disconnectors and earthing switches
  • KS C IEC 61992-3:2019 Railway applications — Fixed installations — DC switchgear — Part 3: Indoor d.c. disconnectors, switch-disconnectors and earthing switches
  • KS C IEC 61992-2:2019 Railway applications — Fixed installations — DC switchgear — Part 2: DC circuit-breaker
  • KS C IEC 61992-2-2019 Railway applications — Fixed installations — DC switchgear — Part 2: DC circuit-breaker
  • KS C 4319-2023 D.C. power supply for notebook computer
  • KS C 4319-2013(2023) D.C. power supply for notebook computer

Association Francaise de Normalisation

  • NF L58-351:1971 Standard direct current contactors.
  • NF F42-123-4:1999 Railway applications - Fixed installations - D.C. switchgear - Part 4 : outdoor d.c. in-line switch-disconnectors and d.c. earthing switches.
  • NF F41-020-3:1998 D.C. Switchgear. Part 3 : indoor D.C. Disconnectors and switch-disconnectors.
  • NF F41-020-6/A1*NF EN 50123-6/A1:2015 Railway applications - Fixed installations - D.C. switchgear - Part 6 : D.C. switchgear assemblies
  • NF F41-020-6*NF EN 50123-6:2004 Railway applications - Fixed installations - D.C. switchgear - Part 6 : D.C. switchgear assemblie
  • NF F41-020-4*NF EN 50123-4:2004 Railway applications - Fixed installations - D.C. switchgear - Part 4 : outdoor d.c. disconnectors, switch-disconnectors and earthing switches.
  • NF C64-120:1991 Appareillage à haute tension pour courant alternatif - Déclencheurs directs à maximum de courant - Règles.
  • NF F41-020-3/A1*NF EN 50123-3/A1:2014 Railway applications - Fixed installations - D.C. switchgear - Part 3 : indoor d.c. disconnectors, switch-disconnectors and earthing switches
  • NF F41-020-4/A1*NF EN 50123-4/A1:2014 Railway applications - Fixed installations - D.C. switchgear - Part 4 : outdoor d.c. disconnectors, switch-disconnectors and earthing switches
  • NF F41-020-3*NF EN 50123-3:2004 Railway applications - Fixed installations - D.C. switchgear - Part 3 : indoor d.c. disconnectors, switch-disconnectors and earthing switches
  • NF F41-020-2*NF EN 50123-2:2004 Railway applications - Fixed installations - D.C. switchgear - Part 2 : D.C. circuit breakers
  • NF F41-020-1:1998 D.C. Switchgear. Part 1 : general.
  • NF EN 50123-2:2004 Applications ferroviaires - Installations fixes - Appareillage à courant continu - Partie 2 : disjoncteurs pour courant continu
  • NF EN 62747:2014 Terminology for Voltage Source Converters (VSC) in High Voltage Direct Current (HVDC) Systems
  • NF EN 62747/A1:2019 Terminology for Voltage Source Converters (VSC) in High Voltage Direct Current (HVDC) Systems

Defense Logistics Agency

Military Standards (MIL-STD)

British Standards Institution (BSI)

  • BS EN 50123-4:1999 Railway applications - Fixed installations - d.c. switchgear - Outdoor d.c. in-line switch-disconnectors, disconnectors and d.c. earthing switches
  • BS EN 50123-6:2003 Railway applications - Fixed installations - D.C. switchgear - D. C. switchgear assemblies
  • BS EN 50123-6:1999 Railway applications - Fixed installations - d.c. switchgear - D.C. switchgear assemblies
  • BS EN 50123-6:2003+A1:2014 Railway applications. Fixed installations. D.C. switchgear - D.C. switchgear assemblies
  • BS EN 50123-4:2003+A1:2013 Railway applications - Fixed installations - D.C. switchgear - Outdoor d.c. disconnectors, switch-disconnectors and earthing switches
  • BS EN 50123-3:2003+A1:2013 Railway applications - Fixed installations - D.C. switchgear - Indoor d.c. disconnectors, switch-disconnectors and earthing switches
  • BS EN 50123-3:2003 Railway applications - Fixed installations - D.C. switchgear - Indoor d.c. disconnectors, switch-disconnectors and earthing switches
  • BS EN 50123-4:2003 Railway applications - Fixed installations - D.C. switchgear - Outdoor d.c. disconnectors, switch-disconnectors and earthing switches
  • BS 6688:1986 Method for specifying requirements for low voltage power supplies, switching type, d.c. output
  • BS EN 50123-2:1996 Railway applications - Fixed installations - d.c. switchgear - d.c. circuit breakers
  • BS EN 50123-2:2003 Railway applications - Fixed installations - D.C. switchgear - D. C. circuit breakers
  • BS EN 61347-2-7:2012 Lamp controlgear. Particular requirements for battery supplied electronic controlgear for emergency lighting (self-contained)
  • BS EN 61347-2-7:2006 Lamp controlgear - Part 2-7: Particular requirements for d.c. supplied electronic ballasts for emergency lighting
  • 19/30389563 DC BS IEC 61992-6 AMD2. Railway applications. Fixed installations. DC switchgear. Part 6. DC switchgear assemblies
  • BS EN 50123-3:1996 Railway applications - Fixed installations - d.c. switchgear - Indoor d.c. disconnectors and switch-disconnectors
  • 13/30284893 DC BS EN 61992-6 AMD1. Railway Applications. Fixed installations. D.C. switchgear. Part 6. DC switchgear assemblies
  • PD IEC/TS 62700:2014 DC power supply for notebook computers
  • PD IEC TS 62271-315:2025 High-voltage switchgear and controlgear – Part 315: Direct current (DC) transfer switches
  • BS EN 61347-2-4:2001 Lamp controlgear. Particular requirements for d.c. supplied electronic ballasts for general lighting
  • BS PD IEC TS 62271-315:2025 High-voltage switchgear and controlgear - Direct current (DC) transfer switches
  • BS EN 61347-2-7:2001 Lamp controlgear - Particular requirements for d.c. supplied electronic ballasts for emergency lighting
  • BS EN 61347-2-7:2007 Lamp controlgear. Particular requirements for d.c. supplied electronic ballasts for emergency lighting

German Institute for Standardization

  • DIN EN 50123-3:1996 Railway applications - Fixed installations - D.C. switchgear - Part 3: Indoor d.c. disconnectors and switch-disconnectors; German version EN 50123-3:1995
  • DIN EN 50123-4:1999 Railway applications; fixed installations - D.C. switchgear - Part 4: Outdoor d.c. in-line switch-disconnectors, disconnectors and d.c. earthing switches; German version EN 50123-4:1999
  • DIN 89270:1997-06 Installations switches, AC/DC 10 A, AC/DC 250 V, degree of protection IP 56
  • DIN EN 50123-6:1998 Railway applications - Fixed installations; D.C. switchgear - Part 6: Switchgear assemblies; German version EN 50123-6:1998
  • DIN 89322:1996-09 Switch without housing AC/DC 10 A AC/DC 250 V Protection class IP 00
  • DIN EN 50123-6:2003 Railway applications - Fixed installations; D.C. switchgear - Part 6: D.C. switchgear assemblies; German version EN 50123-6:2003
  • DIN EN 50123-4:2003 Railway applications - Fixed installations; D.C. switchgear - Part 4: Outdoor d.c. switch-disconnectors, switch-disconnectors and earthing switches; German version EN 50123-4:2003
  • DIN EN 50563:2014-09*VDE 0806-563:2014-09 External a.c. - d.c. and a.c. - a.c. power supplies
  • DIN EN 50123-6/AA E:2013 Draft Document - Railway applications - Fixed installations - D.C. switchgear - Part 6: D.C. switchgear assemblies; German version EN 50123-6:2003/prAA:2013
  • DIN EN 50123-6/AA E:2013-08 Draft Document - Railway applications - Fixed installations - D.C. switchgear - Part 6: D.C. switchgear assemblies; German version EN 50123-6:2003/prAA:2013
  • DIN EN 50123-4/AA E:2013 Draft Document - Railway applications - Fixed installations - D.C. switchgear - Part 4: Outdoor d.c. disconnectors, switch-disconnectors and earthing switches; German version EN 50123-4:2003/FprAA:2013
  • DIN EN 50123-3/AA E:2013 Draft Document - Railway applications - Fixed installations - D.C. switchgear - Part 3: Indoor d.c. disconnectors, switch-disconnectors and earthing switches; German version EN 50123-3:2003/FprAA:2013
  • DIN EN 50123-3/AA E:2013-08 Draft Document - Railway applications - Fixed installations - D.C. switchgear - Part 3: Indoor d.c. disconnectors, switch-disconnectors and earthing switches; German version EN 50123-3:2003/FprAA:2013
  • DIN EN 50123-4/AA E:2013-08 Draft Document - Railway applications - Fixed installations - D.C. switchgear - Part 4: Outdoor d.c. disconnectors, switch-disconnectors and earthing switches; German version EN 50123-4:2003/FprAA:2013
  • DIN EN 50123-2:1996 Railway applications - Fixed installations - D.C. switchgear - Part 2: D.C. circuit breakers; German version EN 50123-2:1995
  • DIN EN 50123-2:2003 Railway applications - Fixed installations; D.C. switchgear - Part 2: D.C. circuit breakers; German version EN 50123-2:2003
  • DIN EN 61204-6:2001-10*VDE 0557-6:2001-10 Low-voltage power supplies, DC output
  • DIN EN 50123-3:2003-10 Railway applications - Fixed installations; D.C. switchgear - Part 3: Indoor d.c. disconnectors, switch-disconnectors and earthing switches; German version EN 50123-3:2003
  • DIN EN 50123-3:2003 Railway applications - Fixed installations; D.C. switchgear - Part 3: Indoor d.c. disconnectors, switch-disconnectors and earthing switches; German version EN 50123-3:2003
  • DIN EN 50123-4:2003-09 Railway applications - Fixed installations; D.C. switchgear - Part 4: Outdoor d.c. switch-disconnectors, switch-disconnectors and earthing switches; German version EN 50123-4:2003
  • DIN 89263:1997-06 Double-pole sockets with switch and earthing contact, AC/DC 10 A, AC/DC 250 V, degree of protection IP 56
  • DIN EN 50123-3/A1:2014-02 Railway applications - Fixed installations - DC switchgear - Part 3: Indoor dc disconnectors, switch-disconnectors and earthing switches; German version EN 50123-3:2003/A1:2013
  • DIN EN 50123-4/A1:2014 Railway applications - Fixed installations - D.C. switchgear - Part 4: Outdoor d.c. disconnectors, switch-disconnectors and earthing switches; German version EN 50123-4:2003/A1:2013

European Committee for Electrotechnical Standardization(CENELEC)

  • EN 50123-6:2003 Railway applications - Fixed installations - D.C. switchgear Part 6: D.C. switchgear assemblies (Incorporates Amendment A1: 2014)
  • EN 50123-3:2003 Railway applications - Fixed installations - D.C. switchgear Part 3: Indoor d.c. disconnectors, switch-disconnectors and earthing switches (Incorporates Amendment A1: 2013)
  • EN 50123-2:2003 Railway Applications Fixed Installations - D.C. Switchgear Part 2: D.C. Circuit Breakers

CENELEC - European Committee for Electrotechnical Standardization

  • EN 50123-6:1998 Railway Applications - Fixed Installations - D.C. Switchgear Part 6: D.C. Switchgear Assemblies
  • EN 50123-4:1999 Railway Applications - Fixed Installations - D.C. Switchgear - Part 4: Outdoor d.c.In-Line Switch-Disconnectors@ Disconnectors and d.c. Earthing Switches
  • EN 50123-3:1995 Railway Applications Fixed Installations - D.C. Switchgear Part 3: Indoor d.c. Disconnectors and Switch-Disconnectors
  • EN 50123-2:1995 Railway Applications Fixed Installations - D.C. Switchgear Part 2: D.C. Circuit Breakers (Incorporates Amendment A1: 1996)

United States Navy

Swedish Institute for Standards

  • SS-EN 50123-6:2003 Railway applications - Fixed installations - D.C. switchgear - Part 6: D.C. switchgear assemblies
  • SS-EN 50123-3:2003 Railway applications - Fixed installations - D.C. switchgear - Part 3: Indoor d.c. disconnectors, switch-disconnectors and earthing switches
  • SS-EN 50123-4:2003 Railway applications - Fixed installations - D.C. switchgear - Part 4: Outdoor d.c. disconnectors, switch-disconnectors and earthing switches
  • SS-EN 50123-2:2003 Railway applications - Fixed installations - D.C. switchgear - Part 2: D.C. circuit breakers

International Electrotechnical Commission (IEC)

  • IEC 61992-6:2006 Railway applications - Fixed installations - DC switchgear - Part 6: DC switchgear assemblies
  • IEC 61992-6:2006+AMD1:2014 CSV Railway applications — Fixed installations — DC switchgear — Part 6:DC switchgear assemblies
  • IEC 61992-4:2006+AMD1:2015 CSV Railway applications - Fixed installations - DC switchgear - Part 4: Outdoor d.c. disconnectors, switch-disconnectors and earthing switches
  • IEC 61992-6:2006+AMD1:2014+AMD2:2020 CSV Railway applications - Fixed installations - DC switchgear - Part 6: DC switchgear assemblies
  • IEC 61992-3:2006+AMD1:2015 CSV Railway applications - Fixed installations - DC switchgear - Part 3: Indoor d.c. disconnectors, switch-disconnectors and earthing switches
  • IEC 61992-6:2006/AMD1:2014 Railway Applications - Fixed installations - D.C. switchgear - Part 6: DC switchgear assemblies
  • IEC 61992-3:2006 Railway applications - Fixed installations - DC switchgear - Part 3: Indoor d.c. disconnectors, switch-disconnectors and earthing switches
  • IEC 61992-4:2006 Railway applications - Fixed installations - DC switchgear - Part 4: Outdoor d.c. disconnectors, switch-disconnectors and earthing switches
  • IEC 61992-3:2006/AMD1:2015 Amendment 1 - Railway applications - Fixed installations - DC switchgear - Part 3: Indoor d.c. disconnectors, switch-disconnectors and earthing switches
  • IEC 61992-4:2006/AMD1:2015 Amendment 1 - Railway applications - Fixed installations - DC switchgear - Part 4: Outdoor d.c. disconnectors, switch-disconnectors and earthing switches
  • IEC 61992-6:2006/AMD2:2020 Amendment 2 - Railway applications - Fixed installations - DC switchgear - Part 6: DC switchgear assemblies
  • IEC 61992-4:2015 Applications ferroviaires – Installations fixes – Appareillage à courant continu – Partie 4: Interrupteurs-sectionneurs@ sectionneurs et sectionneurs de terre à courant continu@ pour usage extérieur (Edition 1.1; Consolidated Reprint)
  • IEC 61992-3:2015 Applications ferroviaires – Installations fixes – Appareillage à courant continu – Partie 3: Interrupteurs-sectionneurs@ sectionneurs et sectionneurs de terre à courant continu@ pour l'intérieur (Edition 2.1; Consolidated Reprint)
  • IEC 61992-2:2006 Railway applications - Fixed installations - DC switchgear - Part 2: DC circuit-breakers
  • IEC 61992-2:2014 Railway applications - Fixed installations - DC switchgear - Part 2: DC circuit-breakers
  • IEC TS 62700:2014 DC power supply for notebook computers
  • IEC 61992-2:2006+AMD1:2014 CSV Railway applications — Fixed installations — DC switchgear — Part 2:DC circuit-breakers
  • IEC PAS 62543:2008 DC transmission using voltage sourced converters
  • IEC 61992-6:2014 Applications ferroviaires – Installations fixes – Appareillage à courant continu – Partie 6: Ensembles d'appareillage à courant continu (Edition 1.1; Consolidated Reprint)

U.S. Air Force

U.S. Military Regulations and Norms

Danish Standards Foundation

  • DANSK DS/EN 50123-6:2003 Railway applications - Fixed installations - D.C. switchgear- Part 6: D.C. switchgear assemblies
  • DS/EN 50123-6:2003 Railway applications - Fixed installations - D.C. switchgear- Part 6: D.C. switchgear assemblies
  • DS/EN 50123-3/A1:2013 Railway applications - Fixed installations - D.C. switchgear - Part 3: Indoor d.c. disconnectors, switch-disconnectors and earthing switches
  • DS/EN 50123-3:2003 Railway applications - Fixed installations - D.C. switchgear - Part 3: Indoor d.c. disconnectors, switch-disconnectors and earthing switches
  • DS/EN 50123-4/A1:2013 Railway applications - Fixed installations - D.C. switchgear - Part 4: Outdoor d.c. disconnectors, switch-disconnectors and earthing switches
  • DANSK DS/EN 50123-4:2003 Railway applications - Fixed installations - D.C. switchgear - Part 4: Outdoor d.c. disconnectors, switch-disconnectors and earthing switches
  • DANSK DS/EN 50123-4/A1:2003 Railway applications - Fixed installations - D.C. switchgear - Part 4: Outdoor d.c. disconnectors, switch-disconnectors and earthing switches
  • DS/EN 50123-4:2003 Railway applications - Fixed installations - D.C. switchgear - Part 4: Outdoor d.c. disconnectors, switch-disconnectors and earthing switches
  • DANSK DS/EN 50123-3/A1:2003 Railway applications - Fixed installations - D.C. switchgear - Part 3: Indoor d.c. disconnectors, switch-disconnectors and earthing switches
  • DANSK DS/EN 50123-3:2003 Railway applications - Fixed installations - D.C. switchgear - Part 3: Indoor d.c. disconnectors, switch-disconnectors and earthing switches
  • DS/EN 50123-2:2003 Railway applications - Fixed installations - D.C. switchgear - Part 2: D.C. circuit breakers
  • DANSK DS/EN 50123-2:2003 Railway applications - Fixed installations - D.C. switchgear - Part 2: D.C. circuit breakers

Spanish Association for Standardization (UNE)

  • UNE-EN 50123-6:2004/A1:2015 Railway applications - Fixed installations - D.C. switchgear - Part 6: D.C. switchgear assemblies
  • AENOR UNE-EN 50123-6:2004 Railway applications - Fixed installations - DC switchgear — Part 6: DC switchgear assemblies
  • UNE-EN 50123-6:2004 Railway applications - Fixed installations - D.C. switchgear -- Part 6: D.C. switchgear assemblies
  • AENOR UNE-EN 50123-6/A1:2004 Railway applications - Fixed installations - DC switchgear — Part 6: DC switchgear assemblies
  • UNE-EN 50123-3:2004/A1:2013 Railway applications - Fixed installations - D.C. switchgear - Part 3: Indoor d.c. disconnectors, switch-disconnectors and earthing switches
  • AENOR UNE-EN 50123-4:2004 Railway applications - Fixed installations - DC switchgear — Part 4: Outdoor dc disconnectors, switch-disconnectors and earthing switches
  • AENOR UNE-EN 50123-4/A1:2004 Railway applications - Fixed installations - DC switchgear — Part 4: Outdoor dc disconnectors, switch-disconnectors and earthing switches
  • AENOR UNE-EN 50123-3/A1:2004 Railway applications - Fixed installations - DC switchgear — Part 3: Indoor dc disconnectors, switch-disconnectors and earthing switches
  • UNE-EN 50123-4:2004/A1:2013 Railway applications - Fixed installations - D.C. switchgear - Part 4: Outdoor d.c. disconnectors, switch-disconnectors and earthing switches
  • UNE-EN 50123-4:2004 Railway applications - Fixed installations - D.C. switchgear -- Part 4: Outdoor d.c. disconnectors, switch-disconnectors and earthing switches
  • UNE-EN 50123-3:2004 Railway applications - Fixed installations - D.C. switchgear -- Part 3: Indoor d.c. disconnectors, switch-disconnectors and earthing switches
  • AENOR UNE-EN 50123-3:2004 Railway applications - Fixed installations - DC switchgear — Part 3: Indoor dc disconnectors, switch-disconnectors and earthing switches
  • UNE-EN 50123-2:2004 Railway applications - Fixed installations - D.C. switchgear -- Part 2: D.C. circuit breakers
  • AENOR UNE-EN 50123-2:2004 Railway applications - Fixed installations - DC switchgear — Part 2: DC circuit breakers
  • AENOR UNE 20589-1:1978 Stabilized direct current power supplies. Terminology.

Comitato Elettrotecnico Italiano

  • CEI EN 50123-6:2003 Railway applications - Fixed installations - D.C. switchgear - Part 6: D.C. switchgear assemblies
  • CEI EN 50123-6/A1:2003 Railway applications - Fixed installations - D.C. switchgear - Part 6: D.C. switchgear assemblies
  • CEI EN 50123-4/A1:2003 Railway applications - Fixed installations - D.C. switchgear - Part 4: Outdoor d.c. disconnectors, switch-disconnectors and earthing switches
  • CEI EN 50123-4:2003 Railway applications - Fixed installations - D.C. switchgear - Part 4: Outdoor d.c. disconnectors, switch-disconnectors and earthing switches
  • CEI EN 50123-3/A1:2003 Railway applications - Fixed installations - D.C. switchgear - Part 3: Indoor d.c. disconnectors, switch-disconnectors and earthing switches
  • CEI EN 50123-3:2003 Railway applications - Fixed installations - D.C. switchgear - Part 3: Indoor d.c. disconnectors, switch-disconnectors and earthing switches
  • CEI EN 50123-2:2003 Railway applications - Fixed installations - D.C. switchgear - Part 2: D.C. circuit breakers

Lithuanian Standards Office

  • LST EN 50123-6-2004 Railway applications. Fixed installations. D.C. switchgear. Part 6: D.C. switchgear assemblies
  • LST EN 50123-3-2004 Railway applications. Fixed installations. D.C. switchgear. Part 3: Indoor d.c. disconnectors, switch-disconnectors and earthing switches
  • LST EN 50123-4-2004 Railway applications. Fixed installations. D.C. switchgear. Part 4: Outdoor d.c. disconnectors, switch-disconnectors and earthing switches
  • LST EN 50123-2-2004 Railway applications. Fixed installations. D.C. switchgear. Part 2: D.C. circuit breakers

The Directorate General of Specifications and Metrology (DGSM)

Kingdom of Bahrain Testing and Metrology Directorate

GCC Standardization Organization

  • GSO IEC 61992-3:2014 Railway applications - Fixed installations - DC switchgear - Part 3: Indoor d.c. disconnectors, switch-disconnectors and earthing switches
  • GSO IEC/TS 62700:2016 DC power supply for notebook computers

Association for Electrical, Electronic & Information Technologies (VDE)

  • VDE 0115-300-3/A1-2014 Railway applications - Fixed installations - D.C. switchgear - Part 3: Indoor d.c. disconnectors@ switch-disconnectors and earthing switches; German version EN 50123-3:2003/A1:2013
  • VDE 0115-300-4/A1-2014 Railway applications - Fixed installations - D.C. switchgear - Part 4: Outdoor d.c. disconnectors@ switch-disconnectors and earthing switches; German version EN 50123-4:2003/A1:2013
  • VDE 0115-300-3-2003 Railway applications - Fixed installations; D.C. switchgear - Part 3: Indoor d.c. disconnectors@ switch-disconnectors and earthing switches; German version EN 50123-3:2003
  • VDE V 0625-3236-2 E*DIN IEC TS 63236-2:2020-03 Direct current appliance couplers for ICT equipment installed in data centers and telecom central offices - Part 2: 5.2 kW System
  • VDE 0115-300-4-2003 Railway applications - Fixed installations; D.C. switchgear - Part 4: Outdoor d.c. switch-disconnectors@ switch-disconnectors and earthing switches; German version EN 50123-4:2003

RO-ASRO

  • STAS 553/4-1980 SWITCHGEAR UP TO 1000 V A.C. AND 1200 V D. C. AND UP TO 4000 A A.C. AND D.C. Rules and test methods
  • STAS 553/2-1980 SWITCHGEAR UP 1000 V A.C AND 1200 V C.C. AND UP 4000 A A C AND D.C. Technical characteristics. Rated values

IX-IX-IEC

  • IEC 61992-6:2006/COR1:2025 Corrigendum 1 - Railway applications - Fixed installations - DC switchgear - Part 6: DC switchgear assemblies

CZ-CSN

  • CSN EN 50123-4 ZZ1-2003 Railway applications. Fixtures. DC switch. Part 4: Switching, Isolated DC Lines and DC External Implementation

Bureau of Indian Standards

South African Bureau of Standard

  • SANS 61204-6:2000 Low-voltage power supplies, d.c. output Part 6: Requirements for low-voltage power supplies of assessed performance

Japanese Industrial Standards Committee (JISC)

  • JIS E 2501-2:2010 Railway applications.Fixed installations.DC switchgear.Part 2: DC circuit-breakers

National Electrical Manufacturers Association(NEMA)

Standard Association of Australia (SAA)

  • AS 2598:1983 Stabilized power supplies - d.c. output
  • AS 1431.6:1977 Control switching devices for voltages up to 650 V a.c. and 250 V d.c., Part 6: Pilot switches
  • AS 1431.3:1977 Control switching devices for voltages up to 650 V a.c. and 250 V d.c., Part 3: Rotary switches
  • AS 1431.5:1977 Control switching devices for voltages up to 650 V a.c. and 250 V d.c., Part 5: Position switches

Canadian Standards Association (CSA)

  • CSA C381.1-08-2008 Test method for calculating the energy efficiency of single-voltage external ac-dc and ac-ac power supplies First Edition

American National Standards Institute (ANSI)

NATO - North Atlantic Treaty Organization

Association of German Mechanical Engineers

IET - Institution of Engineering and Technology