E:
Transformer Safety Standards
Transformer Standards EN61558-1
The old VDE 0550 and VDE 0551 transformer standards do not exist anymore. The previous EN 60742 (VDE 0551) transformer standards is outdated now also.
The up-to-date standards for transformers are now BS EN 61558 IEC 61558 (VDE 0570). Part 1 of the standard explains general requirements and tests. Part 2 lists special transformer types like safety isolating transformers (part 2-6) or SMPS transformers (part2-17) a separate standard, which still has a connection to part 1, for general requirements.
European standards for transformers
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EN 61558-1 |
Safety of transformers |
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(VDE 0570 Teil 1) |
General requirements and tests |
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EN 61558-2-4 |
Particular requirements on isolating transformers |
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(VDE 0570 Teil 2-4) |
for general use |
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EN 61558-2-6 |
Particular requirements on safety isolating transformers |
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(VDE 0570 Teil 2-6) |
for general use |
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EN 61558-2-17 |
Particular requirements on transformers |
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(VDE 0570 Teil 2-17) |
for switch mode power supplies |
Other European standards
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DIN EN 50020 |
Electrical apparatus for potentially explosive atmospheres |
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VDE 0170/0171 |
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DIN IEC 380 |
Safety of electrically energized office machines |
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VDE 0806 |
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DIN IEC 65 EN 60065 |
Safety requirements on mains operated electronic and related apparatus for |
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VDE 0860 |
household and similar general use |
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DIN IEC 601 |
Safety of medical equipment |
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VDE 0750 |
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DIN EN 61010 |
Safety requirements on electrical equipment for measurement, control and |
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VDE 0411 |
laboratory use |
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DIN EN 60950 |
Safety of information technology equipment including office machines |
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VDE 0805 |
UL (Underwriter Laboratory, USA) standard
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UL 506 |
Special Transformers |
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UL 544 |
Medical and Dental Equipment |
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UL 131 |
Direct Plug-in Transformers |
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UL 1585 |
Class 2 and 3 Transformers |
ATL Transformers can produce transformers with UL and or CSA (Canadian standards) approved materials and on demand will send a chart with the materials used.
