1. J

    Multi way switch fuse isolator

    Anyone know of a MSDB type panel to install after don and supplier equipment similar to a MSDB that will take 18 individual cut out/ meter feeds for distribution of the new sub mains to a block of flats. 9 off peak and 9 peak to 9 flats. To be switched and fused @ 60 a. So tight for space don’t...
  2. C

    Domestic Electric shower pull switch isolator

    Hi, my neighbour has had to change his electric shower (6kw) pull switch (32A) 3 times in 4yrs. Apart from it possibly being poor quality switches he,s replacing, I was wondering if there is any reason not to leave the pull switch isolator in the "on" position. Thanks
  3. D

    Extractor fan to timer type

    Hi I’m thinking of changing an extractor fan (in a WC) to one with a run on/timer. The current set up doesn’t have an isolator, and wiring runs from the light bulb to the fan, which is sited in the ceiling about 18” away. The fan is vented through a flat roof above. Now, I realise that i’ll...
  4. Gary Tollison

    DNO-CU isolator switch install

    greetings :) I’m looking at getting an isolator switch put in just before the consumer unit. DNO has quoted £138 incl VAT for the job. Now, I have lvl 3 domestic electrical installer diploma in the bag, and am not far from going for AM2. Is there anything I can do on the consumer side to help...
  5. S

    RCD tripping when switching oven isolator off

    Hi all. I was called to a house recently where the occupier reported that when they turned the oven isolator off the RCD would trip. So I tried it and that's exactly what happened. There was nothing switched on on the oven at the time. When the oven is on it works fine. It is an integrated oven...
  6. B

    100amp Isolator switch required

    Hello everyone. I'm hoping you can advise. I am in need of a 100amp fused isolator switch with a tiny footprint. Any recommendations please? Thanks
  7. E

    3 phase isolator for a shop/flats above

    Hi All, Have been reading forums for years now,time came to ask for advice. Have a job to fit main 3 phase isolator for a shop with flats above.About to 2 nd fix the flats now,when the supply is sorted.There was a single phase to the flats,done some years ago,without any isolators.Now the...
  8. S

    Continual problems with Shower isolator.

    I get regular work from a student landlord. In one of his properties the shower isolator switch has burnt out on the feed side several times. I've replaced the switch twice (last time with an MK) and the shower's also been replaced. Insulation resistance on the circuit is >500 and the MCB...
  9. R

    Kitchen 3 gang isolator grid

    Hi guys. I've had my kitchen 're fitted and in doing so 're wired. The hob and cooker both off of 32 ampseperate breakers in 6mm cable. The rest is on a socket loop 2.5 mm cable in to a 32 amp breaker. But linked into the loop is a 3 gang isolator grid for cooker hood fridge and washing...
  10. R

    1.5mm coming from a 20a isolator

    What is people’s opinion on 2.5mm swa entering a rotary isolator and a 1.5mm swa leaving on a 20a mcb? Having a bit of a discussion with a colleague.
  11. R

    Security Roller Shutter Door Isolator

    Hi All I'm trying to find an isolator that will take a class 4 security padlock for a factories roller shutter door, this is to comply with their latest insurance assessment. Can anyone point me in the right direction please? The usual 16/32A rotary isolators do not have a big enough hole for...
  12. B

    16A rotary isolator help

    Currently have feed to 16A rotary isolator, I’m gonna come of this with 2.5mm to a socket then to a fused connection unit to feed 2 lights if lid this ok
  13. L

    Domestic Consumer Unit - Isolator and earthing

    In the future I would like the upgrade the consumer unit within my flat as to be able to add additional circuits (as the current one is plastic and is tiny). However there is no means of isolation from the incoming supply, there is also no earth from the incoming supply either which is another...
  14. D

    Certificate for replacing a main 200amp isolator

    Hi Guys just replaced a 200 amp main isolator in a factory along with a replacement 3 phase board should you do an installation cert or a minor works as it's like for like
  15. cprfenom

    How are fuses installed in this isolator

    Hi All, Probably an obvious and stupid question, but how do the HRC BS88 Fuses get mounted in this Isolator
  16. Electron

    Broken 13A Switch Fused Isolator?

    Whilst checking for a tripping RCD I found that a 13A Switch Fused Isolator, for a double socket behind a washing machine and a dryer, was giving various voltage readings when in off position, 240v when on and stayed at 240v when switched off. This video shows the problem...
  17. KEV 1 N

    Lovely old Isolator found in Cellar

    Found this in the cellar of an old house in Durham... The neutral is fused so I’m guessing it’s “really old” Any body know roughly the era it would be?
  18. F

    Domestic Bathroom extract isolator

    Hey peeps, I have a movement sensor in my en suite which turns on the extract fan. Trouble is, it's been installed so that it only triggers the fan when the light switch is on. I want to rewire it so that the fan comes on irrespective of whether the light is on or off (but obviously still...
  19. Ian1981

    Mccb used as main switch isolator

    A question regarding the use of a mccb as a 3 phase main isolation switch to a DB. Is it a necessity? Current set up is I have a 3 phase 70mm supply feeding a DB. The origin of this supply is unknown, hence I’m getting northern power out to investigate as the main cut out earthing arrangement...
  20. B

    Remote Isolator On Locked Disboard/CU

    Afternoon All, Maybe an odd question. For the last 8 years I've been in this industry I have always fitted single and 3 phase disboard/CU's with locks and no remote isolator other than on a locked main panel. I'm on a new job where we are using a mix of Siemens 3 phase boards and Crabtree...