circuit breaker | Page 4

circuit breaker

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  1. L

    main circuit breaker tripping

    Hi all, I have popped over from the Plumbers forum, after some advise please. The main circuit breaker on my comsumer unit keeps tripping. Occasionally it will reset and stay on for about 30 seconds then trips again. I have tried switching all off the other circuit breakers off, but the main...
  2. M

    AM2 help Selection of Circuit breaker

    Hi guys, Need some help on selecting a circuit breaker for a 3 phase motor on a DOL starter for my AM2. This is how far I have got let me know how to complete my calculation. Information I know; Its a 1kw motor Its wired in singles in trunking to the DOL starter...
  3. J

    Circuit breaker for a three phase motor

    Hi guys, The question may be too easy, but when I think more over something at the end I start to doubt what is right and what is wrong. So I was wondering how do we choose circuit breaker for a three phase motor (lets say 6 kW, 400V, pf=0,8? We will need to calculate the current - I = P/...
  4. J

    How to troubleshooting the Circuit breaker protect 3 phase motor tripped?

    How should i do when the circuit breaker protect 3 phase motor has been tripped? step 1: how do i do...and then check...?
  5. P

    Type A circuit breaker

    Hi can anyone tell me what did the Type A circuit breaker change to is it a type B now? I have come across a 15 Amp Type A in a consumer unit. What is the Zs of it please?
  6. D

    Circuit breaker testing

    Hi Guys Just been wondering, why dont we test circuit breakers? There's testing equipment that does this on an industrial scale but how come its not applicable in the household? Do we just have to trust the manufacturers guarantee, as ive recently fitted a CB new and it wasnt functioning...
  7. M

    For Sale BG British General MCB Miniature Circuit Breaker

    I have for sale the following British General (BG) Miniature Circuit Breakers: 7 x --- B6 (Amp) MCBs 1 x --- B10 (Amp) MCBs 12 x --- B16 (Amp) MCBs 4 x --- B32 (Amp) MCBs 5 x --- B40 (Amp) MCBs £25 for the lot. They are all new and unused, just been sat in a box for some time. You...
  8. K

    Multiple Cables in a single circuit breaker

    Hi all, advise needed please (Commercial) Before I go into detail about why I ask, as this may be a silly question with an easy answer, is there any regulation or reason why two circuits cannot be fed from one circuit breaker providing all cables connected are adequately protected by the device...
  9. A

    Do I need a circuit breaker?

    Hello, my first post and I must point out I am a novice. I am planning to install some spiked garden lights which have a combined wattage of around 8 x35 watt. The cable is already in place from the previous owner of my property and my question is whether or not I need to fix some kind of safety...
  10. D

    Mid Position valver trips Circuit Breaker

    Hello, I have been working on a Central heating system where , after selecting the heating to come on, it often trips the Circuit Breaker. Throughout the Summer, it appears that there were not any problems, when only the Hot Water was selected on the Timer programmer. Both the valve and the...
  11. L

    Main switch or Circuit breaker section

    Hey guys, just wondered what you guys do as I had a difference of opinion and happy to accept if I'm wrong, or if indeed neither of us are wrong and just have different ways of doing things! In the "main switch or circuit breaker" section of an EIC if I've replaced a fuse board I would put the...
  12. E

    Dead Circuit Tripping Circuit Breaker

    Hi folks I'm new here so please forgive me if I'm posting in the wrong place etc Am hoping someone can help. I need to remove old wiring to a downstairs electric shower. The shower was removed sometime back with the wiring to the switch remaining! Anyway 247 volts showing at the switch. Turned...
  13. G

    Help resetting a schneider 3phase circuit breaker

    Hello, just wondering if the start button should stay in without the power on or is it a faulty unit? regards ash
  14. M

    Cost to replace circuit breaker fuse box - advice

    Hi, I'm hoping to get a bit of advice, I am clueless with this sort of thing. I have an electrical shower running from a fuse box that has circuit breakers. Other the the shower, other things that run from the same box are the amercer and an electrical fire. Last week when using the shower the...
  15. H

    type C Circuit breaker

    what is the answer to this question please? A 16amp Type C CB used to protect a three phase reduced low voltage circuit is subject to a maximum Zs value of? How do I work this out?
  16. A

    ring final circuit breaker trips off

    Everytime i use the brand new iron and ironing machine after a few minutes, the breaker trips off. Its annoying to go to electric panel board turn on everytime. The iron and ironing board machine has 2200 wattts. The ring final circuit breaker got 32amp which is enough to protect the sockets...
  17. K

    Earth Leakage Circuit Breaker Trips out

    Hello again and thanks to everyone who helped me out with a recent issue. This one is trickier, at least to me - Let me outline the scenario - if I leave some detail out, please bear with me as I'm now off site and I'll try and reply in good time. I'm working on an old croft house in Scotland...
  18. K

    Safe way to artificially trigger a circuit breaker ?

    Well,we are in for an odd question here ! The situation is very simple: I would like to remotely and artificially trigger a circuit breaker.I have a regular breaker panel,and would like to put a kind of red emergency button near the load that I could push to trigger the circuit breaker and kill...
  19. O

    ETA Circuit breaker protection - Quick Q.

    Hi there, Well, first post and I'm sure it's going to be one of many. I'm not a qualified sparky but a pretty handy enthusiast who does plenty of research and investigation before I start any elec work. I'm about to start wiring up a boat project I've been working on for the past 24 months...
  20. S

    Circuit breaker turning off all house sockets

    Hi, I'm having a slight issue in my house and am not sure what the problem is. Basically something is causing the circuit breaker to turn off when too much electricity is used. At the moment all sockets are unplugged and everything is turned off, if I turn one of the socket lines on and plug...

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