Connect with us

FR & RF Thermal fuse.

Discussion in 'General Electronics Discussion' started by Martaine2005, May 14, 2021.

Scroll to continue with content
  1. Martaine2005

    Martaine2005

    3,596
    979
    May 12, 2015
    Hi all,
    I have been searching for the difference between FR and RF with respect to thermal fuses.
    There isn't much I could find out but hoping somebody here will know.

    It's for a rice cooker (184c 16A 240V).
    The only reasonable priced item is a 185c 15A 240V. I can't see that 1 degree C will make any difference so ordered it.
    Here is the item.
    I ordered the 15A FR185. The original was 184c 16A.

    Martin
     
  2. Tha fios agaibh

    Tha fios agaibh

    2,188
    729
    Aug 11, 2014
    I don't know either but I suspect it has to do with construction materials used.

    For your rice cooker I'm sure its fine.
     
  3. bertus

    bertus Moderator

    2,143
    807
    Nov 8, 2019
    Hello,

    I do also not know the difference.
    I know there are thermal fuses with ceramic or metal bodies.
    There might be a difference in the breaking speed.

    Bertis
     
  4. Martaine2005

    Martaine2005

    3,596
    979
    May 12, 2015
    Thanks chaps. I was just curious.

    Martin
     
  5. dave9

    dave9

    1,145
    311
    Mar 5, 2017
    I'd guess FR means flame retardant and RF means retards flames, that it's in a high temp epoxy sealed can instead of plastic casing.
     
  6. Bluejets

    Bluejets

    5,145
    1,075
    Oct 5, 2014
  7. dave9

    dave9

    1,145
    311
    Mar 5, 2017
    My second guess was that FR is a one-shot fuse, while RF means resettable fuse.
     
  8. Martaine2005

    Martaine2005

    3,596
    979
    May 12, 2015
    I'm still none the wiser except that RS components confirmed there are others too. SF for example and told me "don't worry about it".
    Well, I'm not worried as the temperature is the important part. The Amperes is just the max like most components.
    Thanks to all for your responses.

    Martin
     
  9. Martaine2005

    Martaine2005

    3,596
    979
    May 12, 2015
    That's quite funny Dave, my son said something very similar.
    RF is Rice Fuse..
    FR is F***ed Rice..
    Ah well, made me smile. I'll let myself out....

    Martin
     
  10. Bluejets

    Bluejets

    5,145
    1,075
    Oct 5, 2014
    Would that be fried rice Martin..??:D:D
     
    Martaine2005 likes this.
  11. dave9

    dave9

    1,145
    311
    Mar 5, 2017
    lol, I was thinking FR was more like fuse resistor.
     
    Martaine2005 likes this.
Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Electronics Point Logo
Continue to site
Quote of the day

-