breakers

  1. S

    Wanted - mem memera 2000 ab mcb 20a type b 6ka bs3871

    Hi fellas, Anybody got any of these breakers kicking about in unit/garage? Trawled ebay but no joy as yet MEM MEMERA 2000 AB MCB 20 AMP TYPE 2 & B M6 BS3871 DELTA CIRCUIT BREAKER
  2. D

    Crabtree c50 breakers

    Are these worth selling or just get rid? Saved from a recent mains change
  3. C

    Relay control

    Morning, just checking my theory, I have been asked to wire up a panel that would turn on a red beacon if any one of 4 circuit breakers was turned off. just wondering how you guys think is the best way? I was thinking of buying 4 x 230v relays an taking a phase of each breaker to the a1 on the...
  4. W

    Racking out breakers

    I have an interview soon for a maintenance company on a drilling rig and 1 of the questions they asks is when racking out a circuit breaker you hear crackling/arcing do you keep racking out or rack it back in?
  5. K

    D curve breaker

    I have been asked by a customer to solve a problem, he has a 3 phase 20A D curve breaker supplying 3 single phase breakers 2 x 6A and 1 x 2A. The 6A breakers are supplying 2 pumps with a load of about 4A each. When 1 of the pumps are turned on, the 20A trips. Any ideas why? The earth loop...
  6. G

    For Sale Crabtree C50 breakers

    I have 25 crabtree C50 breakers removed for a job all work £10 each plus £2 postage 10 AMP - 5 OF THESE 15 AMP - 5 OF THESE 30 AMP - 7 OF THESE 40 AMP - 1 OF THESE 50 AMP - 3 OF THESE 60 AMP - 4 OF THESE
  7. E

    Testing breakers

    Interesting that we dont test mcb's like we do rcd's. To see if they trip as according to their time/current curves. I'm guessing the practicalities of the test gear is why? Anyone else got any suggestions?!
  8. uksparks

    CU Connected with breakers taken out first

    Hi, Just thought id share my photos of a CU I finished, well almost finished today, just needs another 6A breaker and a couple of the circuits connecting in, but otherwise, its pretty much there! I am so please that I have discovered this new better way of connecting everything, it feels like...
  9. T

    3phase breaker made of 3 single phase breakers

    Hi guys, Is there a difference between 3 single phase breakers next to each other (with a linking bar) and 1 3 phase breaker? Does the 3 phase breaker have anything special in it or is it just 3 single phase breakers stuck together with a bar in the switches? Cheers, Tim
  10. yellowvanman

    10KA or 6KA breakers?

    I know the difference between the 2 sorts but I'm thinking do I need to fit 10KA breakers in this scenario, when I've got 6KA MCBs in the van! 3 phase DB, Isc 4.9KA (phase to earth), all circuits from this DB are single phase. Will never be 3 phase in future (HMO). Worst case short circuit...
  11. S

    MEM MCB breakers required.

    Hi New to the forum, first post. Is there anyone out there who could help me. I'm looking for two MEM M6 Type 1, MCB circuit breakers. 1 x 32A and 1 x 45A. Also is there such a thing as a MEM Type 1, 5A RCBO. Thank's in advance Stupod
  12. R

    Old GE DB boards.

    Hi, I have something coming up soon and it is running a new 63 amp supply in a hotel. The current DB is GE board. As we know new 63 amp triple pole breakers are as rare as rocking horse feet. Does anyone know what the next best fit will be. Have heard Hager is a good match. I know it won't...
  13. I

    protecting cable inside a distribution panel.

    Hi, Just came across something earlier that made the have a think. Distribution panel fed by 25mm cable. This goes directly in to a D50 breaker. The D50 feeds 4 6mm cables squeezed in top of the MCB that feeds small 3 phase bus bars, these in turn feed 1.5mm circuits. I have fitted MCBs to...
  14. M

    Type 4 stablok breakers

    Hi all, after some clarifcation really Carrying out some work in a building, sub divided into Federal electric stablok boards. All of the ring main circuits in the whole building are protected by 30 amp stablok breakers..type 4.. of which there are hundreds. The conduit is acting at the...
  15. I

    sqaure d breakers

    Is a type 3 sqaure d braker equivelent to a type c breaker been to house was asked to fit mcb c32 to protect an oven and hob at roughly 6kw without diversty i know its not the norm to fit type c breakers for fixed restive loads i know they are used for comercial purposes where there is a high...
  16. N6rul

    breakers 3 phase

    Hello guys!!! Have a little confusion here??? When selecting a mcb for 3 phase. Whennit states 60 amps is that 20 amp per phase or 60 amp per phase?? Thanks
  17. D

    unidentified circuits

    Hi all, I have just started a new job, and have been chucked in the deep end. The previous electrician had added many new circuits to a few huge distribution boards but left all the circuits unlabelled. I have been asked to identify all unknown circuits, but have been asked not to turn any...
  18. P

    European circuit breakers

    Does anyone know if you can get hold of double pole RCBOs in the uk? Just seen the prices in France for a bog standard unit :(
  19. R

    160A breaker question?

    Can somebody tell me why on the 3 phase circuit breaker in question has a 160A rating on the supply side and on the bus bar side it says 100A. The breaker is an old GE RECORD, it also has a red button on the bus bar side of breaker. Is anybody familiar with the breaker I am explaining. Cheers
  20. S

    contactum breakers

    Hi is it Cribbs wholesalers that do contactum breakers or does anyone know who does need them for tomorrow cheers

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