mccb

  1. Dean Williams

    Terasaki MCCB

    Hi does anyone have a list of Terasaki MCCB max ZS. In particular im looking for the max Zs for a type TO-100BA, 40A, 3-pole. ive looked at the terasaki site but it doesnt show the measurements for these. they are from circa 1984. thanks
  2. C

    Wanted large quantities of used MCB, MCCB and ACB

    If anyone has any items they stripped out and would like to sell please contact me. Only large quantities considered. Any make as long as in good condition
    • cleary1981
    • Thread
    • large mcb mccb number phone please stock used wanted
    • Replies: 32
    • Forum: For Sale and Wanted Forum
  3. S

    Hyundai MCCB

    Hi All, I came across this make of breaker and was wondering if anyone has used? I am swapping out old proteus and was thinking of using these instead.
  4. 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
  5. 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
  6. 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.
  7. 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...
  8. A

    Merlin / Schneider MCCB 63A

    I have for sale 1x 63A Merlin Gerin MCCB with new base for L2 / yellow phase Part number MGP0631Y Pics to follow. Cheers
  9. 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
  10. S

    MCCB Max Zs

    Hi all , Simple question for you all, current job has MCCB panelboards fitted with adjustable trips which allow the tripping characteristics to be altered to 40% of maxim full load current. Manafacturers data sheet has max Zs values , but only for the origanal current rating of the unit ie 400A...
  11. D

    mccb max Zs ??

    Anyone know of or where to find Max permitted Zs for mccb`s (60947-2) please?
  12. 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...
  13. 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.
  14. 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 )
  15. J

    mccb lay out

    hi all after my thread yesterday i asked my boss how a hw would wire the 50KW motor. the said a 125A mccb?? now if there is 1x 3 phase supply into a building, each pahse has 100A per phase and is then connected into a 3phase board. does he mean the mccb will replace 1 of the mcbs in...
  16. 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
  17. D

    mccb for ac and dc?

    i need to find the part number of any incoming mccb that works with ac and dc, as i have a job in amsterdam to do. they insist that the protection is suitable for ac and for dc. ie it has the standard signwave along with a dotted or flat line in the little box. I usually work with hager boards...
    • DLaxton
    • Thread
    • aus mccb
    • Replies: 2
    • Forum: Australia
  18. albi

    MCCB Zs TO HIGH

    HI AGAIN I HAVE 2 MCCB,s (moulded case circuit breakers ) RATED AT 120A AND 250A THE MAX Zs FOR THE DEVICES ARE 0.12 AND 0.09 MY PROBLEM IS THE Ze IS 0.24 AT THE DB. SO THERE IS MY PROBLEM AMY SUGGESTIONS WILL BE WELCOME
  19. T

    WANTED MEM Obsolete MCCB

    I am trying to get hold of a MEM MEL 633 16kVA 63amp MCCB for an old Memschield 125 MCCB panel board - or equivalent. Anyone able to help? Suggest anywhere to try?:confused::confused::confused:
  20. L

    mccb tripping

    Does anyone have any Ideas why a 125A mccb would trip? Been called out today twice to same job 1st time I reset it and no problems ,but then it went again this evening . It's not overloaded ,I didnt do any IR tests as I couldnt gain access to the bar It was suppling just the office. My first...
Best EV Chargers
Best EV Chargers by Electrical2Go! The official electric vehicle charger supplier.

OFFICIAL SPONSORS

Electrical Goods - Electrical Tools - Brand Names Electrician Courses Green Electrical Goods PCB Way Electrical Goods - Electrical Tools - Brand Names Pushfit Wire Connectors Electric Underfloor Heating Electrician Courses
These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then CLICK HERE and post a thread with who you are, and we'll send you some stats etc

YOUR Unread Posts

Daily, weekly or monthly email

Receive a daily, weekly, or monthly email containing a digest of new and recently updated threads.
UK Tiling Forum | Tilers Forums
UK Tiling Forum by Tilers Forums UK
Plumbers Forums | Plumbing Advice | Gas Forum
Electrician Tips from Professional Electricians
JBOD Forums: a forum for JBOD storage server advice
JBOD Suppliers: JBOD Storage Server Supplies
Back
Top