Standards catalogue

JS EN 61558-2-4:2009

Safety of power transformers, power supplies, reactors and similar products Part 2-4: Particular requirements for isolating transformers for general use

This standard is also applicable to isolating transformers without limitation of the rated output, however such transformers are considered as special transformers and are subjected to an agreement between the purchaser and the supplier. The no-load output voltage or the rated output voltage does not exceed 500 V a.c. or 708 V ripple-free d.c.

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