BS number needed

[cashnotakite]

Doing a periodic and need a BS number for an old MCB.

Its an old late 70's panel and the mcb is one of those chunky black units with the the big switch in the middle with rating on it. It reminds me of the breakers you used to get on dis boards in the 80's.

Any help appreciated. Thanks.

 

[malcolmsanford]

BS 3871 most likely

 

[cashnotakite]

Yeah just tried search and I think thats it. Thanks

 

[crabapple]

crabtree c50 ??

 

[malcolmsanford]

crabtree c50 ??

Same BS 3871

 

[mackers]

sounds like a c50 like said 3871 aLL info usally wrote on the side of the mcb! sometimes its to easy to ask on here than actually do the checking yourself
ps im not having a pop just stating a fact! its the old fashion way done pre internet known as your own leg work lol