overload

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  1. N

    overload

    Hi Guys I hve a ring main that keeps tripping, but it also trips the main rcd on the board, is there a possibility that it is being overloaded? There are about 6 computers a franking machine a photocopier coffee machine and a few other gadgets on this one ring of 10 sockets! Should the ring be...
  2. D

    Omission of overload protection for fixed loads.

    Been reading various threads with regards to having an mcb that exceeds the cable rating thus only providing short circuit protection, what surprises me is the negative responses that are posted if it is ever suggested. Now lets try put a translation on the regulation specifically 433-3-1 (ii)...
  3. B

    contactor / overload

    I'm probably going to get shot for this question, but when wiring a contactor/ overload does it matter wich side the supply is connected? I.E into the overload first or into the contactor and out through the overload?
  4. O

    Dimmer overload

    I'm part qualified so you'll have to forgive my tiny brain... 12 x 50w Gu10s that have munched a couple of dimmers.(a silly load for a room that's abut 8 Msq) I understand that with these halogens I may have to de rate the dimmer which would mean a 1200 watt dimmer (a bit pricy by the looks...
    • Only1harden
    • Thread
    • dimmer halogens overload rating switch
    • Replies: 10
    • Forum: UK Electrical Forum
  5. D

    domestic question???...

    Would a 16 amp MCB be capable for a kitchen ring?? 3x double plugs, 4x 13 amp fuse spurs for the washing machine etc.. and the cooker is on its own mcb...thanks
  6. H

    problem of circuit protection

    Hello, after shutdown of power supply ,at the next time of start, my water pump it is breakdown. I think my circuit protection is not approperiate, because it is the second breakdown !! please,how to protect my installation correctly. thank you
  7. M

    Direct online starter with overload wiring help

    Hi guys, I was looking for a bit of help on wiring up a direct online starter with overload and stop start for an ancient bandsaw located in a workshop I'm working in. The band saw has a really old overload contactor intergrated into it. Basically the usuall 3 phases in and 3 phases out, but it...
    • moosey86
    • Thread
    • direct online overload starter wiring wiring help
    • Replies: 8
    • Forum: UK Electrical Forum
  8. C

    400 Amp overload

    Hi guys, wondering if anyone knows where i can source a 400a overload either CT operated or stand alone. Best our suppliers can promise us is 2-3 weeks but i need one ASAP, Regards, John
  9. B

    Does anyone know of a remote overload reset for moeller gear?

    Ok, so I'll put in a little background. On nearly all the sites I look after, the overloads for just about all the smaller >75Kw motors are in a main panel in each sites main switch room. Not a problem until something trips out, it's usually operator error, overloading conveyors etc... Now...
  10. L

    Overload breaker tripping.

    Going to a garage tommorrow were they have just had new LED lights installed. After a while the photocell overload breaker trips, the photocell is connected to a contacter the RCD protecting the whole circuit never trips. The light units that have been installed are approx 1/3 of the wattage...
    • Landril
    • Thread
    • breaker contactor lights overload problem tripping trips
    • Replies: 9
    • Forum: UK Electrical Forum
  11. R

    regarding mcb and rcd

    if my rcd comes with overload protection still can use the mcb and how is the sequence can anyone help
  12. H

    The procedure for setting the thermal and magnetic overload on an MCCB?(Coursework)

    Hi there I'm Carlos. I'm new to this forum and I really hope I'm posting in the correct section for this question, but I really couldn't find any other section nor could I find anything when I searched for it. My question is in the title really. I've looked almost everywhere and have come to...
    • Hullaboo
    • Thread
    • electrical work magnetic overload procedure setting thermal
    • Replies: 13
    • Forum: UK Electrical Forum
  13. D

    10.8kW shower cable size

    Hi, I'm installing a 10.8 kw shower and looking at other forums everyone is saying 10mm is OK however i can't see how. 10800W/230V=47A breaker size 50A the only way it can be a 10mm is if its clipped direct with no insulation as it can take 64A however if it is any other reference then the...
  14. J

    testing of overloads

    Bear with me, I haven't seen the setup in question so I can only go on what I've been told........ We had a swimming pool pump that locked up after the bearing failed and then tripped the 63A/30mA rcd, presumably after the insulation had broken down. The pump runs through a contactor operated...
  15. M

    Overload relays

    Hello Everyone, Does someone know the minimum size motor for using a overload relay? Thanks guys,
    • Marco P
    • Thread
    • motor overload question relay relays thank
    • Replies: 7
    • Forum: UK Electrical Forum
  16. S

    DOL starter overload calculation

    Hi can anyone tell me the calculation for above? Got the last day of my install of my AM2 tomorrow can't remember from college and havnt had much luck searching, cheers.
    • sparkyy
    • Thread
    • calculation dol overload starter
    • Replies: 7
    • Forum: UK Electrical Forum
  17. R

    rcd keeps tripping

    OK here goes i will try explain a fault im having with my consumer unit. Ive just bought a house and moved in but the rcd keeps tripping when there is too much load on, basicly if i have the following switched on. tv/sky/2kw heater/tumble dryer/fridge freezer/chest freeser/water heater/cooker...
  18. richy3333

    Did I overload the circuit?

    Found this today on a PIR/EICR 3 x 2KW heaters and an oven all off the same hook-up. Melty, melty!
  19. T

    Two Three Phase motors on one Overload

    Hi All I have come across two 3 phase in line WOODS fans rated @ 0.22 kW / 0.6 amps connected together on one overload. This does not seem correct is there anyway this could be right ? Regards Tailspin :shocked::confused:
  20. N

    Dol contactor & overload selection

    Hi everyone Can you please tell me how to calculate/select the correct contactor & overload for the following:- Single phase 2.2kw induction motor fitted to a steam cleaner/pressure washer. There is currently no motor controls fitted as they have been removed by previous owner. I have also...

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