MK Fish Key

[Lectrician]

So, MK changed the design of their fish key a couple years back. It has exactly the same 'key', but the footprint of the key itself has changed.

I assumed it was just to save some money or something, but.......what is the bit on the back of the key for? It looks like it is designed for something??

 

[Sureitsoff?]

according to some blurb i have just read it "will fit the new and old style of MK key switches"

 

[sparkydude]

The other end of the fish key fits MK Tamperproof fuseholder screws, basically just a slotted screw but with the middle bit filled in still . Most commonly found on the MK fire alarm isolator spurs such as the link below

http://www.electrika.co.uk/products/m/man-0290/pdfcat/mk-47-200.pdf


Nick

 

[Lectrician]

There we go then - it has a purpose!

 

[ccam108]

That has been bugging me too for ages!

Now I know I can dismantle an entire Glasgow Subway train with the fish key on my keyring if I get bored - they use those screws exclusively!

Colin C

 

[333rocky333]

I find they dont fit well on keyrings now though.
I hacksaw that bit off and file it down before handing them over now

 

[tonyelectric]

I find they dont fit well on keyrings now though.
I hacksaw that bit off and file it down before handing them over now

And hopefully you havn't fitted a tamperproof key switched FCU

 

[oharaf]

Cool!!!! Have had one on my key ring for 3 years!! Always thought it was to make it look more 'fishy'!!!!

Can't actually recall putting a fish key switch in for absolutely ages thou!!!

 

[Lectrician]

Use them quite often, and always thought the new key was a bit budget TBH! Still have some of the more suave keys in my tool box!

 

[333rocky333]

Also the emerg test switches seem to have gone from red writing to grey recently for some reason

 

[Lectrician]

Yea - annoyingly I ended up with a mix on the last job....