circuit breakers

circuit breakers

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  1. T

    DIY: 20A oven installation on 40A circuit, can this be done?

    Here is my situation We have a dedicated oven circuit in our house with a 40A RCBO We have bought a dual fuel range cooker which states it has a nominal power of 4800W By my calculations this means it will draw max 20A The power cord of the oven is rated to 25A My question: Are we permitted...
  2. carmencina

    Find my mistakes! - Camper van wiring diagram

    Dear Community, I am at the initial phase of my camper van conversion in China, in which I am planning to live and work together with my wife. Camper vans in China are not popular though they produce any kind of devices and gadgets one might search for this purpose. I am not bad at DIY and...
  3. S

    How to co-ordinate circuit breakers trip for overload and short circuit?

    Can 50A B type circuit breaker be coordinated with upstream 50A C type circuit breaker to trip earlier on shorts and current overloads?
  4. newfutile

    Mixing of circuit breakers

    It's all coming out anyway so it's an acedemic question. Would a Bill consumer unit be comparable with Eaton breakers? An Eaton main switch and mcbs are installed so height differences won't be a problem. I'm changing it for full rcbo with spd board anyway.
  5. Pixiofthewoods

    Why would a 20 amp outlet only work if the 30 amp breaker is on?

    I have a champion 7500 electric start Genny, model no 100463 that I bought second hand. I was told it was gently used but have since noticed that it has been tinkered with. My question of the day is; When I plug into the 20 amp outlets, I have to turn the 30 amp breaker on to be able to use the...
  6. J

    Seperation of circuit breakers in panels?

    I have a question around equipment & electrical separation of circuit breaker grouping that I want to reference against the Regs book. Initially believed this could be covered off by using 528.1 Proximity to electrical services (BAND 1 & 2 cables etc) Client has mixed circuits of 230V, 110V...
  7. S

    HSE bulletin- Lubrication of circuit breakers

    FYI.... Health and Safety Executive - Safety notice https://www.hse.gov.uk/safetybulletins/lubrication-circuit-breakers.htm?utm_source=govdelivery&utm_medium=email&utm_campaign=circuit-breaker-safety-notice&utm_term=body&utm_content=safety-notice-29-sep-21
  8. M

    Remote controlled circuit breakers MCB

    Please, help me to find the brand and model for a 120Ac 60 amp circuit breaker that can be remotely, turned on, off, and trip reset. It is used in the output of a small 7KVA gasoline generator. I found online the “Smart Breakers WiFi” from Leviton; but there is no WiFi on the yacht, and I don’t...
  9. L

    Bs 60947-2 siemens sirus circuit breakers

    Hi all. I've come across siemens sirus bs 60947-2 circuit breakers during a test and inspection job. I can't find any info on its breaking capacity and also its maximum permitted Zs. Any help would be much appreciated. Len
  10. A

    residential lights that seem to be controlled by two different circuit breakers

    Hello all, I just bought a house and a few of the lights were broken so I am replacing the fixtures. There are three light fixtures and three switches, each of which controls all three lights. I turned the circuit breaker off and all of the switches do not have power and two of the lights do not...
  11. S

    Maximum Service voltage of ACBs(air circuit breakers) .

    Can we use a ACB rated for insulation level of 1000v, and 690 volt serivce voltage at, 800volt. For example ABB sace E1.2N , Can it be used at 800volt AC?
  12. R

    Over rated Circuit Breakers

    Can any one advise the regulations concerning Over rated protection devices, I am well aware that a circuit breaker must be adequate for its application, but what are the regulations regarding a circuit breaker that is over rated for the load, I.E. a 10A load with a 32A circuit breaker, what is...
  13. W

    What type of circuit breakers can I add to my panel?

    Hi everyone - I appreciate your time/opinion on this: I'm lucky enough to have a 200 amp electrical panel with a lot of open spots for new circuits/circuit breakers. I have an unfinished area in the basement that I'm wanting to make into my shop and it currently doesn't have any outlets. I...
  14. Ironbones

    DC circuit breakers VS semiconductor fuses high speed.

    Hi all. Just to start off still learning. Could any one help me with this and put me right if I am incorrect. I would like to understand the preference or reason for opting for DC breakers or semiconductor high speed fuses, when been used in low voltage DC circuit. I understand that...
  15. haptism

    LSN circuit breakers

    Today I come across some mcbs in a CU ive never seen, theyre made by LSN, single pole B6, but dont appear to have any BS, EN ect. They have a CE mark, AC 230/400 and have a breaking capacity of 10Ka. Anyone ever seen these, are they cosha ?? Being rated at 230v-400v I dont expect they that old...
  16. P

    Circuit Breakers help :-)

    Hi all, new member so please go gentle... I have been in my newbuilt for a while now but this weekend was the first time I tried to fire the angle grinder and subsequently the hoover to do some work. As you would expect, I was using the garage power sockets. However, the circuit breaker kept...
  17. J

    Air circuit breakers

    I have following air circuit breakers for sale used only 1 time for a project Brand - SOSUL MFGD - 2011.11.17 Origin - KOREA Rating - 630A Model - VL - 12E20B06 Brand - ABB MFGD - 2009 Origin - Italy Rating - 630A Model - Brand - ELATEC MFGD - 1999 Origin - German Rating - 800A Model -...
  18. A

    Rewire and circuit breakers

    Hi guys, Hoping someone would be able to help with this one. My grans house still has the good old fuse box with fuse wire which I am aware could do with upgrading to a proper circuit breaker panel. However I have no idea on how much it would cost her and hoping someone would be able to give...
  19. stephen atherton

    Range Oven Tripping Circuit Breakers

    We just had a range oven fitted (gas on hob with two electric ovens - total power rated at 5.3Kw) so a 32Amp mcb is in the board on the dedicated cooker circuit which was there from previous cooker. When one oven is on everything works fine, but when both ovens are switched on together they trip...
  20. D

    Circuit Breakers

    Was just looking at circuit breaker types and I was a little bit confused so wondered if anyone could help clear it up. Basically say If I determined my current would be 26a before taking into account any rating factors and chosen a 32a circuit breaker for my protective device. After taking...

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