# Power Transformer - inherently and non-inherently limited

**URL:** <https://forum.digikey.com/t/power-transformer-inherently-and-non-inherently-limited/75>\
**Category:** Transformers\
**Tags:** faqs, power, transformers, terminology\
**Created:** [March 3, 2017, 3:56pm UTC](https://forum.digikey.com/t/power-transformer-inherently-and-non-inherently-limited/75 "2017-03-03T15:56:54Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Paul\_Burmeister](https://avatars.discourse-cdn.com/v4/letter/p/e480ec/32.png) [@Paul\_Burmeister](https://forum.digikey.com/u/Paul_Burmeister)\
**Post date:** [March 3, 2017, 3:56pm UTC](https://forum.digikey.com/t/power-transformer-inherently-and-non-inherently-limited/75/1 "2017-03-03T15:56:55Z")

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Inherently Limited means that the transformer, if overloaded, will short itself out and fail safely. This will not require a fuse. Non-inherently Limited means that the transformer, if overloaded, may NOT short itself out and fail safely. This will require a fuse