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Safety standards
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Transformer norms EN61558-1
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The old VDE 0550 and VDE 0551 do not exist anymore. The succession norm EN 60742 (VDE 0551) is outdated as well already. The now valid norm for transformers is DIN EN 61558 IEC 61558 (VDE 0570). Part 1 of it explains general requirements and tests. Part 2 lists special transformer types like safety transformers (part 2-6) or SMPS transformers (part2-17) separatly as norm, which still has a connection to part 1, the general requirements.
European norms for transformers
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EN 61558-1
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Safety of transformers
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(VDE 0570 Teil 1)
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General requirements and tests
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EN 61558-2-4
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Particular requirements on isolating transformers
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(VDE 0570 Teil 2-4)
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for general use
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EN 61558-2-6
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Particular requirements on safety isolating transformers
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(VDE 0570 Teil 2-6)
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for general use
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EN 61558-2-17
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Particular requirements on transformers
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(VDE 0570 Teil 2-17)
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for switch mode power supplies
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Other european standards:
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DIN EN 50020
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Electrical apparatus for potentially explosive atmospheres
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VDE 0170/0171
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DIN IEC 380
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Safety of electrically energized office machines
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VDE 0806
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DIN IEC 65 EN 60065
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Safety requirements on mains operated electronic and related apparatus for
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VDE 0860
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household and similiar general use
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DIN IEC 601
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Safety of medical equipment
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VDE 0750
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DIN EN 61010
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Safety requirements on electrical equipment for measurement, control and
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VDE 0411
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laboratory use
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DIN EN 60950
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Safety of information technology equipment including office machines
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VDE 0805
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UL (Underwriter Laboratory, USA) standards
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On request we produce conform to these UL-rules:
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UL 506
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SpecialTransformers
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UL 544
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Medical and Dental Equipment
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UL 131
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Direct Plug-in Transformers
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UL 1585
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Class 2 and 3 Transformers
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We produce transformers with Ul approved materials and on demand we send a chart with the materials used. We can also send yellow cards.
The materials have the classes UL 94 HB, UL 94-5 V, UL 94-V 0, UL 94 V-1 oder UL 94 V-2.
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