rcbo

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  1. OnlQQker

    So, Do Electricians Have Top Of The Range Consumer Units And RCBO's

    In their own homes I'm on about... I imagine they test the installation a lot as well?
    • OnlQQker
    • Thread
    • consumer consumer unit consumer units electricians range rcbo rcbo's units
    • Replies: 32
    • Forum: UK Electrical Forum
  2. D

    Is it ok to do insulation resistance test on RCBO at 500v?

    I know you are not supposed to do a insulation test on circuits that are protected by an RCD at 500v because it may damage the electronic components inside the RCD so that's why you switch the RCD off before you test the individual circuits, however, what if the circuits are all protected by...
    • David345
    • Thread
    • dead test domestic testing fault finding insulation insulation resistance insulation resistance test insulation resistance testing ir test rcbo resistance test test and inspect testers testing testing and commisioning
    • Replies: 6
    • Forum: UK Electrical Forum
  3. JBW175

    UK Need an RCBO to fit an old Crabtree board, any suggestions?

    Hi all, As the title suggests, I’m after an RCBO to fit an old Crabtree CU. Was wondering if this style would do it? All suggestions appreciated, thanks in advance.
  4. Ian1981

    Rcbo neutral and functional earths

    Thoughts on this please, functional earth leads obviously showing signs of heat damage, the greenish coloured neutral leads compared to the blue ones are coloured throughout their length, maybe heat has caused this?
  5. Dartlec

    Siemens 5SX range RCBO or best match?

    Trying to locate a suitable RCBO for a Siemens board with (mostly) 5SX21 breakers in. They don't seem to make this range any more, though I don't think it can be that old. It rather resembles the older MK breakers and I believe Siemens provided some of the electronics for MK stuff. Busbar...
  6. J

    UK Three phase (No neutral ) EFLI testing on an RCBO

    Hi I have a MFT1553 Mega tester. Is there a feature on the tester to test 3phase RCBOs when there’s no neutral present? Pretty sure mot. Was wondering if i could temporarily connect a neutral on a Wander lead and use the three wire test method? Thanks John
  7. T

    RCBO Fault

    Hi, Anyone have experience in the following: 16a MK RCBO Tripped supplying Garage. 2 Circuits. Radial and Lights (6/16) MCB's PME supply. Garage supplied in 6mm Twin and Earth with the Earth connected at the Main DB and Connector Blocked in the garage (doing nothing). Earth rod to garage in...
  8. S

    RCBO rating needed?

    Hi I’m looking for some advice on what size/rating rcbo I should have installed for a radial circuit which will be running 2 washing machines 2 tumble dryers and steam iron and steam press all domestic appliances and possible all running at a single time ? I’ve been told conflicting info and...
  9. D

    Wanted I need a MK SENTRY 6330 RCBO 6AMP . Any one got one? Source URL: https://www.electriciansforums.net/forums/for-sale-and-wanted-forum.38/

    I need a MK SENTRY 6330 RCBO 6AMP . Any one got one? Source URL: For Sale and Wanted Forum - https://www.electriciansforums.net/forums/for-sale-and-wanted-forum.38/
  10. a-z electrics

    TV trips rcbo in one socket but not the next socket.

    Here's a weird one.. customer complains of sporadic rcd tripping some time ago so I do a series of tests, only thing on rcd are skts and lights... never got to the bottom of it but I noticed the quirky Square D quikline rcd trips at around 15mA on a ramp test. So I recommend replacing the whole...
  11. C

    Fault finding ring final RCBO

    Done a condition report on a old mains board, everything good apart from ring final, got 0.55 nn 33.7ll and 3.8 on ee, changed board to main switch and rcbos, carried out a full accessory swap on all sockets and fuse spares in house, found some bad practice, twisted lives, n and earth's, no...
  12. S

    rcbo neutral lead question

    Hi, 1st post so go easy on me lol. just wondering if this is normal or if i should be looking for an issue? Today i was fitting ferrules to the fly leads on a compleated cu,cu was fitted 2 weeks ago but did not have any ferrules at the time. So upon dissconnecting each each lead (main switch...
  13. L

    RCBO Neutral Leads bunched with Main Neutral in Main switch - C3 or C2?

    Hi all, Engineer carried out EICR and marked the above as a C2, I agree, the smaller cables could come loose easily as the terminal is mainly clamping the 16mm tail. Client said C3....
  14. A

    Freeing up space in consumer unit

    Hi guys Hoping you guys could help. I have an 8 way RCBO board with all breakers used for dedicated circuits. Ideally I would like to run a dedicated circuit to a new combi boiler I've had fitted rather than it be plugged into the ring main to prevent nuisance trips etc however as mentioned...
  15. S

    Schneider RCBO to replace MCB

    Hello, I am currently working on a project that previously utilises a charger for a battery system that is connected via single phase 240V AC mains. The existing charger has the 15A inlet running through a 1P 16A schneider MCB with the active line connected to the MCB (with earth and neutral...
    • shuan9
    • Thread
    • ausie elec mcb rcbo replace schneider
    • Replies: 3
    • Forum: Australia
  16. J

    Other electrician replaced RCBO with MCB

    Was called out to a car park where they had the lighting circuit tripping out. Fixed the issue by putting damaged cables in an IP rated box. However just realised that the electrician who came out before myself took out the RCBO and replaced it with an MCB in hope that it would stop tripping...
  17. albi

    RCBO tripping

    hello every one i have a problem. i have been called out to a commercial kitchen where the 16A b type RCBO keeps tripping when you turn off a 20A DP switch that controls two dimmers which in turn supplies 2 sets of heat lamps 300w x 5 halogen lamps and 250w x 5 inferred ES lamps. when the...
  18. L

    UK RCBO intermittent tripping advise??

    Hi Guys Just installed a RCBO board to replace an old Wylex consumer unit that had Bs60898 MCB's fitted and an RCD main switch customer supposedly hadn't had problems in the past (not quite sure thats now true) when I carried out the EICR I found a problem on the outside garden lights, so...
    • leebut
    • Thread
    • advise anyone intermittent new old problems rcbo transformer tripping
    • Replies: 36
    • Forum: UK Electrical Forum
  19. T

    Fusebox RCBO trip / ramp

    Fitting a new CU today (domestic TT) and using "Fusebox" for the first time - 14 way Type A RCBO board, 9 ways used 5 spare. All good until testing RCBO trip times - 7 test perfect, but 2 (both 6A) tripping during half test, 1 @ 0 the other @ 180. All loads disconnected, tested again, same...
  20. EastCoastPete

    Pool Pump intermittent RCBO trip

    Hello All, Am checking a fault on someone elses install which is about 18 months old. Customer says it starts and operates ok then he stops to take a break ( it's a small pool with pumped flow to swim against), then tries to restart and the RCBO goes. So, I know it's hot when it happens but...
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