breakers

  1. W

    EICR code - type C breakers with undersized CPC

    Mainly on commercial lighting with twin and earth 1.5mm or 1mm on 6A and 10A type C breakers Im sure there was a table in bs7671 requiring larger CPC sizes for type C breakers than supplied with twin and earth, hence why people use fb200 or singles etc I guess it must be restrictEd by let...
  2. 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...
  3. M

    Dust covered breakers , an issue ?

    I'm doing a major reorganization ATM So I've a box of about 30 unused breakers which I threw under the bed and they've gathered dust. Is the dust a concern or can I just blow it off with the vac ? Thanks
  4. C

    AGCI and AFCI/GFCI breakers with MWBCs...?

    This will be an easy answer for someone (I'm hoping) and I hope the answer doesn't frustrate me. :cautious: Can I use AFCI breakers and AFCI/GFCI breakers on a MWBC with a handle tie? and, if so, where does the neutral go? - Oh, also, this is on a plug-in-neutral panel. So...... just connect the...
  5. 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
  6. B

    Shunt Trip Breakers

    Hello, Ill start by saying i am NOT an electrician. I do own a small business installing commercial kitchen exhaust systems and fire suppression systems. I assist the electrician on site normally in wiring the Fire system and alarms. I recently heard of a shunt trip breaker. In the past, and on...
  7. 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...
  8. M

    AFCI or AFCI/GFCI breakers?

    Selling our house to move out of state. Been working for quite a while to purge/pack/fix many small issues (mostly cosmetic), and paint. I have had to fix several electrical issues left me by previous owner who happens to be a licensed electrician. I had the electrical service upgraded in 2003...
  9. R

    UK RCD/ combined afdd breakers

    Hi can someone tell me whether I need to record the trip times on x1 or x5 on this combined device,as I'm getting trip times of 44/45 ms x1 and sometimes a lot lower ie 29 ms.This device is the sole means of isolation. Cheers
  10. 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
  11. G

    New Home Construction with Tripping Arc Fault Breakers

    Greetings All: I am new to this forum and hope I am in the correct sub-group. We are nearly completed with our new home construction...just a couple weeks from moving in. The 200Amp service panel has 4, sometimes 5 arc fault breakers that repeatedly trip at random times. There are NO...
  12. jeff47

    2 single-pole breakers (untied) for 240vac circuit

    Hello, I was checking my breaker box during the process of shutting down my pool for the season. My pool equipment (pumps, timer) run at 240v. When I went to turn off the breaker, I realized it was two single pole breakers that were independent. That is, there was no handle tie so they could...
  13. Dartlec

    Compatible MCB for "Emma" CU with Contactum and Europa Breakers

    Replacing a fan and some lights today at a job I'll be doing more work on, which has an "Emma" branded consumer unit. Googling suggests that it's a rebranded Contactum board, and the housing looks identical to this image which supports that. However, I also know that Contactum changed their...
  14. dimmer_sw

    Availability of AFCI breakers for Cutler-Hammer BR Loadcenter subpanel?

    I have an old house, built 1925 that still has part of the wiring in the original separated 2-conductor on post style of wiring to 2 rooms, all off of one 15 A breaker. I was originally hoping to put in grounded plugs without necessarily rewiring, but that doesn't look legal. I'm wondering if an...
  15. W

    sub main breaker tripped by 20+ sub sub breakers

    I have been living in this house for five years. From time to time, the sub main breaker (bottom-right in pic1, the RCCB breaker that is tripped in the photo) for the ground floor would be tripped. This happens during the raining season (June to October). In the dry season, there is no problem...
  16. F

    What brand is this panel?

    Can anyone identify the manufacturer of this panel? What type of breakers it takes? Slim breakers possible?
    • Fireworx
    • Thread
    • anyone below brand breaker breakers options panel picture screwfix
    • Replies: 10
    • Forum: UK Electrical Forum
  17. R

    Need to add neutral slots to my 125 amp panel to match ground slots.

    I have an Eaton 125 amp panel with a ground bus bar with 24 slots and 14 neutral slots. I have a 6 breaker Reliance 7500w transfer panel connected to it. The main panel has 4 unused breakers. I need to increase slots on my neutral side. Can I add an additional neutral busbar to the existing one?
    • Robert B
    • Thread
    • added amount amp breakers busbar ground increase neutral panel screwfix
    • Replies: 3
    • Forum: UK Electrical Forum
  18. D

    boards with mixed breakers

    I have been trying to get hold of BM RCBOs without much success and having inherited a job where BM are being used and some of the boards at these premises have had added other types of breakers and it is a problem with some insurers and don't really want to change the whole board if I could...
  19. T

    Outlets out. breaker not tripped

    So after turning on a shop vac, the lights and outlets in the room went out. No breaker or gfci have been tripped. I also am not 100% sure what breaker this string of outlets is even on. I cant trace it without making holes in the walls. Asnyone have any ideas or had a similar problem?
  20. S

    Sockets went out in my den/bedroom no breakers tripped and no gfci found

    Some background info.. maybe you can help. I have a den that was running 600-800 watts worth of electricity and on the other side of the den is the living room in which I had another 1100 watts running. One day I plugged in a standard lamp cfl light bulb and noticed it dimming as if the current...
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