mccb

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  1. P

    MCCB panel selection

    We are looking for a distribution board to provide 3 * 160A three-phase feeds, but they are basically redundant supply path options so max total is 160A as well. I had been looking at using a Hager MCCB panel (as we generally have been using their MCB DBs) but many of them are limited to 125A...
  2. MaintenanceSpark

    Max Zs for Bill Talisman MCCB

    Hi everyone, Happy Friday! Could someone please point me in the right direction, I’m after the Max Zs for a Bill Talisman TLF633 63A MCCB, I’ve looked in the BBB but to no avail on the Max Zs tables. I’ve also looked on our Cert software as they have a Max Zs app but the MCCB category doesn’t...
  3. MaintenanceSpark

    Max Zs Bill Talisman MCCB

    Hi everyone, Happy Friday! Could someone please point me in the right direction, I’m after the Max Zs for a Bill Talisman TLF633 63A MCCB, I’ve looked in the BBB but to no avail on the Max Zs tables. I’ve also looked on our Cert software as they have a Max Zs app but the MCCB category doesn’t...
  4. F

    BS number/ Zs MCCB help?

    Hi, Can anyone tell me a BS number for a merlin gerin compact C161N? Also does anyone have max Zs available for the same C161N 63a MCCB? Cheers.
  5. R

    MCCB Adjustable trip setting - cable rating

    Hi all, In general do you size the cable to the MCCB full trip setting rather than the adjustable setting for the load being supplied. In some cases upsizing the cable can be costly even from 320/400. One of the site engineers is adamant that it should be sized for full trip setting. I'm not...
  6. Q

    Merlin Gerin MCCB Zs Values

    Hi All, We have a Merlin Gerin Compact NS100N Single Phase MCCB I've been asked to find its Max ZS Values and to be honest I cant find anything! This is an from an old MCCB board we are re testing. I put it in google and cant seem to find anything, I know Schneider bought this brand out. But...
  7. Q

    Transformer and MCCB Questions

    Hello All. New here and will be flooding with terrible questions for my own knowledge. Just trying to learn so some questions like this maybe very simple and I'm just daft 1) On site we have a Aux Transformer, From the LV side of the transformer we have an MCCB Board with a few circuits. Now on...
  8. D

    RCCB Tripping, after some reno work

    Hi guys. Looking for some advice. I’ve had some building work done. 1. Outhouse. The wiring internally was changed but the wiring from the house to the outhouse is the same. All electrics working okay in there. 2. Conservatory built. Wiring is in however it is not connected up yet so no...
  9. P

    merlin MCCB service/test

    Hi I have a client with a 1000a merlin mccb as their incoming PD from their private transformer. Previous maintenance spark has claimed its faulty and trips under no load, so they’re leaving the compressors running 24/7, I find this odd but don’t want to mess around too much as if something...
  10. D

    I am looking to buy used and surplus MCCBs

    I am are looking to purchase used and surplus 3 Phase MCCBs and single Phase high amperage MCCBs. All brands considered as long as the MCCBs are in full working order. If you have any that fit that description that you would like sell, please drop me a DM. Thanks
  11. C

    Electrician Jobs Supply to flats using Ryefield boards or mccb panel

    Hi all We are doing wiring to 6 flats.DNO will provide 200 amps service head on ground floor.All Swas for flat submains come to the intake area on ground floor. What is the best option for termibating those SWAs into individual switch fuses after Ryefield board or can i use MCCB panel.Do the...
  12. B

    Hager mccb probs

    Hager 100A MCCB new type (brand new) is tripping when attempting to switch on - new installation. Circuit is feeding a SWA to a DB - No Load on DB and cables of SWA meggering out ok . Thinking the MCCB may be faulty - anyone had probs with these?
    • brizospark
    • Thread
    • aus hager mccb
    • Replies: 2
    • Forum: Australia
  13. G

    MCCB and 24v em lighting

    Hi 2 questions really, im doing a periodic on an old residential home, one of the mccb,s (an old dorman smith single phase 32a) has a small dial bit with 100%/70% on it. what is this? also i have a em lighting supply leaving the db going to an isolator then on to a big battery(more like 2 LARGE...
    • gamblor6
    • Thread
    • 24v aus lighting mccb
    • Replies: 9
    • Forum: Australia
  14. D

    Proteus MCCB

    Does anyone know of a suitable alternative to a Proteus MCCB, as they seem to be difficult to get hold off, and alot more expensive then a different make, I'm after a 63amp if anyone has got any ideas.
  15. T

    High Zs on 800A MCCB

    High looking for a bit of advice might be picking this up incorrect. A main supply panel board with an 800a and 400a mccb feeding a factory an office block respectively. Tested Ze 0.07 ohms Production Building Zs 0.04 ohms Office Block Zs 0.07 ohms Length of runs from panel board to both...
    • tallpault
    • Thread
    • canada high zs mccb
    • Replies: 9
    • Forum: Canada
  16. D

    mccb tripping

    horticultral lighting circuit - 14 x t/p 16A mcb's each mcb has 6 x 600w 400v son lights, fed from a contactor which is fed by a 160A merlin gerin mccb. across the contactor measures L1 - 130A L2 - 133A L3 - 132A but after 6hrs the 160A trips. any ideas ? there is another 2 identical systems...
    • dave-gardiner
    • Thread
    • aus mccb tripping
    • Replies: 23
    • Forum: Australia
  17. B

    MCCB vs HRC overcurrent protection

    Have been looking at a situation where a 400 amp MCCB is feeding a ups. There is a mains supply to a genny changeover switch, along with the genny supply, and the MCCB is between the genny switch and the UPS. Yes its a big bu##er. Any ways there was a momentary power fluctuation which threw...
    • baldsparkies
    • Thread
    • canada mccb overcurrent protection
    • Replies: 35
    • Forum: Canada
  18. G

    ABB MCCB rsting

    Hi peeps, I need to out what rating an MCCB is, but cannot seem to find the relevant info on it. It is an ABB sace, which can be cranked down, and has 5 settings on it. Any advice please will be much appreciated.
    • Guest 004
    • Thread
    • abb canada mccb
    • Replies: 2
    • Forum: Canada
  19. B

    new 125a mccb in existing panel

    Anybody like to take a guess on how much I've been quoted to install a new 125a mccb to an existing panel board (spare cubicle available- work carried out 12am - 6am )
    • bugsy
    • Thread
    • canada existing mccb new panel
    • Replies: 11
    • Forum: Canada
  20. B

    merlin gerin mccb hadles

    Has anybody any idea of where we could locate switch handles for C250H and C125H switch handles Cat no. 41310 / 42882
    • bugsy
    • Thread
    • canada mccb merlin
    • Replies: 2
    • Forum: Canada

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