c 50

[j.g.-electrical]

just wondering how old the crabtree c 50s are, and if the type is not on the side how do you determin the type.

 

[mogga]

http://www.thefusecompany.com/images/c50.pdf?sid=69cvq2erfslj0j14ufpliqd3s4 they are all type C going by brochure

 

[malcolmsanford]

You can actually still buy them at websites like the fuse company. The reference for them of the BS 3871 was omitted from the regs in the mid 90s and replaced with BS 60898.

The C50s had quite a small Ka value of around 4.5Ka but they have been around a good 60yrs to my knowledge.

 

[Knobhead]

I thought I remembered them as an apprentice but then thought I must be imagining it. They should be drawing their pension now! Can’t say I was impressed with them after a mates house caught fire due to them.

 

[mogga]

they are widley available as a lot of facories ect had them fitted when Tony was a boy n dont want to replace full doards of 100 mcbs for the sake of adding a socket I agree with tony I hate them and LM type with a passion due to the screw fitting and exposed connections either end generaly crud

 

[MarkieSparkie]

Crabtree C50 series MCBs are BS3871, older versions available in type 2 and 3 (were very common, but most probably replaced by later version due to unreliability) or later versions type C, rated short circuit capacity M4.5 (4.5kA).

 

[Engineer54]

Those dammed things were based on an American design, with a type 3 tripping curve. If any of you have any experience with Yank MCBs, you would never have used them in the first place, ...Crap with a capital ''C''!!

 

[Knobhead]

So the general consensus is we don’t like them!

 

[glasgowbiker42]

still prefered them to federal stablock! they were just plain deadly!

 

[Engineer54]

still prefered them to federal stablock! they were just plain deadly!

Again, ....American design!!! The C50 design, also come in stab-lock in the states. Can't remember who the actual manufacturer was for those C50 MCBs but all the Yank MCB types come in various DB mounting/connection formats.

 

[Des 56]

So the general consensus is we don’t like them!

I will post this in a whispering tone

They had a nice brown colour scheme though,meaty and all

I'm going to be odd man out here, but I liked the c50 boards.

 

[Knobhead]

Weird :bulb2:

 

[glasgowbiker42]

he wants watchin!

 

[Guest123]

Crabtree C50 series MCBs are BS3871, older versions available in type 2 and 3 (were very common, but most probably replaced by later version due to unreliability) or later versions type C, rated short circuit capacity M4.5 (4.5kA).

You can also tell which is which by the colour of the markings on them, the earliest versions had white markings & the newer ones had yellow.

 

[malcolmsanford]

Again, ....American design!!! The C50 design, also come in stab-lock in the states. Can't remember who the actual manufacturer was for those C50 MCBs but all the Yank MCB types come in various DB mounting/connection formats.

The ones over here mate are General Electric they all have that lovely stylized "GE" on the front