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transformer symbols

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Dr.EM

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Can anyone tell me what these symbols mean (from a transformer and power pack). I can't exactly google them so any help appreciated :)
 

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Hero999

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I'm not certain but as I can offer a couple of guesses.

Double insulated?

Isolation transformer?
 

eng1

New Member
Dr.EM said:
Can anyone tell me what these symbols mean (from a transformer and power pack). I can't exactly google them so any help appreciated :)

Two symbols have been combined into a composite symbol: safety isolating transformer + short circuit proof transformer.
 
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