Siemens
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Êàòàëîã ÑÀ01 2017
àðõèâíûé
(4872) 700-366
skenergo@mail.ru

Supply systems data, line-side connection
Supply systems data

When dimensioning and selecting plant components, the supply systems data, supply system conditions and operating modes must be taken into account for these components.

The most important data for a supply system include the rated voltage and rated frequency. These data for the supply system are designated as rated values in accordance with international agreements.

Usual rated voltages and rated frequencies

In Europe the EN 60038 standard "CENELEC standard voltages" applies.

The international standard IEC 60038, Edition 7, 2009, "IEC standard voltages" was substantially included in this standard.

The IEC 60038 standard is the result of an international agreement to reduce the diverse rated voltage values that are in use for electrical supply networks and traction power supplies, load installations and equipment.

In the low-voltage range, it is emphasized in IEC 60038 that the 220 V/380 V voltages (formerly in continental Europe) and 240 V/415 V voltages (formerly in the UK) for three-phase electricity supplies have been replaced by a single standardized value of 230 V/400 V. The network frequency in Europe is 50 Hz.

The tolerances for the rated voltages of the supply systems that were specified for the transition period up to 2003 were intended to ensure that equipment rated for the existing voltages could be operated safely until the end of its service life.

Year

Rated voltage

Tolerance range

Up to 1987

220 V/380 V

-10% to +10%

1988 to 2003

230 V/400 V

-10% to + 6%

Since 2003

230 V/400 V

-10% to +10%



Conversion of low-voltage systems

Supply voltages in excess of 400 V (e.g. 500 V, 690 V) are only used in Europe in large industrial concerns.

The IEC recommendation 230 V/400 V has been implemented as a national regulation in the most important countries, as far as the conditions in the country allow.

In North and Central America and some northern nations in South America the rated value of the AC mains supply is 120 V; the doubled mains voltage of 240 V is common among larger consumers. As a rule, the low-voltage networks in these countries are implemented as single-phase three-wire networks. A three-phase alternating current is often not available to smaller users, if at all, so the voltage is 208 V or 415 V, while three-phase networks at 480 V are usual for larger consumers. The network frequency is 60 Hz.

In Asia AC mains voltages of 100 V or 110 V (50 Hz or 60 Hz) are also the norm.

In addition, numerous country-specific and regional peculiarities exist around the world, details of which can be obtained from the local operators if necessary.

International supply voltages and frequencies in low-voltage systems

Country

Line voltage

Western Europe:

Belgium

50 Hz 230/400 – 127-220 V

Denmark

50 Hz 230/400 V

Germany

50 Hz 230/400 V

Finland

50 Hz 230/400-5001) – 6601) V

France

50 Hz 127/220 – 230/400 – 5001) – 380/6601) – 525/9101) V

Greece

50 Hz 230/400 – 127/2202) V

Great Britain

50 Hz 230/400 V

Ireland

50 Hz 230/400 V

Iceland

50 Hz 127/2202) – 230/400 V

Italy

50 Hz 127/220 – 230/400 V

Luxembourg

50 Hz 230/400 V

The Netherlands

50 Hz 230/400 – 6601) V

Northern Ireland

50 Hz 230/400 – Belfast 220/380 V

Norway

50 Hz 230-230/400-5001) – 6901) V

Austria

50 Hz 230/400 – 5001) – 6901) V

Portugal

50 Hz 230/400 V

Sweden

50 Hz 230/400 V

Switzerland

50 Hz 230/400 – 5002) V

Spain

50 Hz 230/400 V

  

Eastern Europe:

Albania

50 Hz 230/400 V

Bulgaria

50 Hz 230/400 V

Russian Federation

50 Hz 230/400 – 6901) V

Croatia

50 Hz 230/400 V

Poland

50 Hz 230/400 V

Romania

50 Hz 230/400 V

Serbia

50 Hz 230/400 V

Slovakia

50 Hz 230/400 – 5001) – 6901) V

Slovenia

50 Hz 230/400 V

Czech Republic

50 Hz 230/400 – 5001) – 6901) V

Hungary

50 Hz 230/400 V



Country

Line voltage

Middle East:

Afghanistan

50 Hz 220/380 V

Bahrain

50 Hz 230/400 V

Cyprus

50 Hz 240/415 V

Iraq

50 Hz 220/380 V

Israel

50 Hz 230/400 V

Jordan

50 Hz 220/380 V

Kuwait

50 Hz 240/415 V

Lebanon

50 Hz 110/190 – 220/380 V

Oman

50 Hz 220/380 – 240/415 V

Qatar

50 Hz 240/415 V

Saudi Arabia

60 Hz 127/220 – 220/380 – 4801) V (220/380 – 240/415 V 50 Hz: a few remaining areas only)

Syria

50 Hz 115/200 – 220-380 – 4001) V

Turkey

50 Hz 220/380 V (parts of Istanbul: 110/190 V)

United Arab Emirates
(Abu Dhabi; Ajman; Dubai; Fujairah;
Ras al Khaymah; Sharjah; Um al Qaywayn)


50 Hz 220/380 – 240/415 V

Yemen (North)

50 Hz 220/380 V

Yemen (South)

50 Hz 230/400 V

Far East:

Bangladesh

50 Hz 230/400 V

Burma

50 Hz 230/400 V

People's Republic of China

50 Hz 127/220 – 220/380 V (in mining: 1140 V)

Hong Kong

50 Hz 200/346 V

India

50 Hz 220/380 – 230/400 – 240/415 V

Indonesia

50 Hz 127/220 – 220/380 – 4001) V

Japan

50 Hz 100/200 – 4001) V

South Honshu, Shikoku, Kyushu, Hokkaido, North Honshu

60 Hz 110/220 – 4401) V

Cambodia

50 Hz 120/208 V – Phnom Penh 220/238 V

Korea (North)

60 Hz 220/380 V

Korea (South)

60 Hz 100/2002) – 220/380 – 4401) V

Malaysia

50 Hz 240/415 V

People's Republic of Mongolia

50 Hz 220/380 V

Pakistan

50 Hz 230/400 V

Philippines

60 Hz 110/220 – 440 V

Singapore

50 Hz 240/415 V

Sri Lanka

50 Hz 230/400 V

Taiwan

60 Hz 110/220 – 220 – 440 V

Thailand

50 Hz 220/380 V

Vietnam

50 Hz 220/380 V



Country

Line voltage

North America:

Canada

60 Hz 600 – 120/240 – 460 – 575 V

USA

60 Hz 120/208 – 120/240 – 277/480 – 6001) V

  

Central America:

Bahamas

60 Hz 115/200 – 120/208 V

Barbados

50 Hz 110/190 – 120/208 V

Belize

60 Hz 110/220 – 220/440 V

Costa Rica

60 Hz 120/2082) – 120/240 – 127/220 – 254/4402) – 227/4801) V

Dominican Republic

60 Hz 120/208 – 120/240 – 4801) V

Guatemala

60 Hz 120/208 – 120/240 – 127/220 – 277/4801) – 4801) – 5501) V

Haiti

50 Hz 220/380 V (Jacmel), 60 Hz 110/220 V

Honduras

60 Hz 110/220 – 127/220 – 277/480 V

Jamaica

50 Hz 110/220 – 4401) V

Cuba

60 Hz 120/240 – 220/380 – 277/4801) – 4401) V

Mexico

60 Hz 127/220 – 4401) V

Nicaragua

60 Hz 110/220 – 120/240 – 127/220 – 220/440 – 254/401) V

Panama

60 Hz 120/2081) – 120/240 – 254/4401 – 277/4801) V

Puerto Rico

60 Hz 120/208 – 480 V

El Salvador

60 Hz 110/220 – 120/208 – 127/220 – 220/440 – 240/4801) – 254/4401) V

Trinidad

60 Hz 110/220 – 120/240 – 230/400 V

  

South America:

Argentina

50 Hz 220/380 V

Bolivia

60 Hz 220/380 – 480 V, 50 Hz 110/220 – 220/380 V (exception)

Brazil

60 Hz 110/220 – 220/440 – 127/220 – 220/380 V

Chile

50 Hz 220/380 V

Ecuador

60 Hz 120/208 – 127/220 V

Guyana

50 Hz 110/220 V (Georgetown), 60 Hz 110/220 – 240/480 V

Columbia

60 Hz 110/220 – 150/260 – 440 V

Paraguay

60 Hz 220/380 – 220/440 V

Peru

60 Hz 220 – 220/380/440 V

Surinam

60 Hz 115/230 – 127/220 V

Uruguay

50 Hz 220 V

Venezuela

60 Hz 120/208 – 120/240 – 208/416 – 240/480 V



Country

Line voltage

Africa:

Egypt

50 Hz 110/220 – 220/380 V

Ethiopia

50 Hz 220/380 V

Algeria

50 Hz 127/220 – 220/380 V

Angola

50 Hz 220/380 V

Benin

50 Hz 220/380 V

Ivory Coast

50 Hz 220/380 V

Gabon

50 Hz 220/380 V

Ghana

50 Hz 127/220 – 220/380 V

Guinea

50 Hz 220/380 V

Kenya

50 Hz 220/380 V

Cameroon

50 Hz 127/220 – 220/380 V

Congo

50 Hz 220/380 V

Liberia

60 Hz 120/208 – 120/240 V

Libya

50 Hz 127/2202) – 220/380 V

Madagascar

50 Hz 127/220 – 220/380 V

Malawi

50 Hz 220/380 V

Mali

50 Hz 220/380 V

Morocco

50 Hz 115/200 – 127/220 – 220/380 – 5001) V

Mauritius

50 Hz 240/415 V

Mozambique

50 Hz 220/380 V

Namibia

50 Hz 220/380 V

Niger

50 Hz 220/380 V

Nigeria

50 Hz 220/415 V

Rwanda

50 Hz 220/380 V

Zambia

50 Hz 220/380 V – 415 – 5501) V

Senegal

50 Hz 127/220 – 220/380 V

Sierra Leone

50 Hz 220/380 V

Somalia

50 Hz 220-220/440 V

Sudan

50 Hz 240/415 V

South Africa

50 Hz 220/380 – 5001) – 550/9501) V

Swaziland

50 Hz 220/380 V

Tanzania

50 Hz 230/400 V

Togo

50 Hz 127/220 – 220/380 V

Tunisia

50 Hz 115/200 – 220/380 V

Uganda

50 Hz 240/415 V

Zaire

50 Hz 220/380 V

Zimbabwe

50 Hz 220/380 V



1) Industry only

2) No further expansion

Connection and fusing on the line side

All SITOP and LOGO!Power supplies are built-in devices. Compliance with the pertinent country-specific regulations is essential for installation and electrical connection of the devices. During installation, protective gear and isolating gear must be provided for activating the power supply.

Power supply units cause a current inrush immediately after connection of the input voltage due to charging of the load capacitor, however, it falls back to the rated input current level after a few milliseconds. Aside from the internal impedances of the power supply, the inrush current is dependent on the size of the input voltage applied as well as the source impedance of the supply network and the line impedance of the supply line. The maximum inrush current for the power supplies is specified in the applicable technical data. It is important for dimensioning upstream protective devices.

Single-phase SITOP and LOGO!Power supplies are equipped with internal device protection (fuses). For connection to the supply system, only one protective device (fuse or MCB) must be provided for line protection in accordance with the rated current of the installed cable. The circuit-breakers recommended in the data sheets and operating instructions have been selected such that even during the maximum current inrush that can occur under worst-case conditions on switching on the supply voltage, the circuit-breaker will not trip. A two-pole connected miniature circuit-breaker is required for the connection of certain device types.

3-phase SITOP power supplies do not have internal device protection. The up-circuit protective device (3-phase coupled miniature circuit breaker or motor protection switch) protects the cables and devices. The protective devices specified in the data sheets and operating instructions are optimized to the characteristics of the relevant power supplies.

















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