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rcbo

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  1. 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....
  2. 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...
  3. 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...
  4. 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...
  5. 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...
  6. 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...
  7. 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...
  8. 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...
  9. T

    Rcbo failure

    Hi all I've just had 7 crabtree star breaker type a rcbos fail the half time on 180. I ordered replacements but they are the same tripping around 75ms. Just wondered if any one else was experiencing the same thing, it's only on the 6a rcbos. Making me doubt my tester tbh Many thanks
  10. T

    Best Rcbo board at reasonable price

    Hi all! As the title suggests,I’m looking for your recommendations on the best rcbo boards available at a reasonable price. Doing my best to move away from dual rcd boards, but a lot of customers just wont pay the money for Rcbo’s. Any recommendations very welcome.
  11. L

    Identifying an RCBO from an RCCB (or RCD)

    Hi, would like your professional opinion how to identify an rcbo from an rccd just by looking at it. For example, I have attached two photos, one the ABB (40A 30mA) is an RCCB and the other ABB (10A 30mA) is an RCBO. Supposedly they are both 40A 30mA, how can you tell which is the RCD from RCBO...
  12. K

    Lost power but NO RCBO tripped

    Hey all, First off, Merry Christmas to all :) Right, so I have had a really weird thing happen earlier today. We lost power completely to the whole house, I assumed something tripped one of the RCBO's, so went downstairs to check the CU, and notice NOTHING was tripped off? However there was NO...
  13. M

    RCBO trip.

    Got a large rewire ongoing at the minute. Owner wants to use current sockets alongside the new board as he’s living in one part of the house whilst the builders are in. Today the old supply was disconnected and whilst cutting through an old cable not connected to any of my new legs the RCBO...
  14. littlespark

    On the search for mk rcbo.....

    ....To fit old Sentry board. Present board has 80A, 30mA RCD mainswitch, and it’s a 16 way board!! I can’t get all circuits to stay on all at once. Have to leave any one of 3 lighting circuits off for rcd to hold. Individually they work fine. Accumulative earth leak between all circuits...
  15. CLBrown

    Chint 32Amp RCBO

    Hi All I’m after a Chint 32Amp B type RCBO to collect today or in the morning from Cheshire / Manchester. I can order online but will not arrive until monday afternoon...... Anyone know where I can get one today? Thanks in advance
  16. C

    MAX Zs with 61009

    Why do we have maxuim Zs for 61009 RCBO's? I didn't think Zs values really mattered if the circuit was covered by and 30mA RCBO/RCD?
  17. G

    RCBO Type for Bathroom Lighting

    Perhaps unwisely, I offered to source an RCBO for the spark who's coming to do a couple of small jobs in my bathroom: 1. Connect up an electric towel rail heater (IP65) 2. Replace the MCB for the bathroom lighting circuit with an RCBO, as a quick temporary fix to make the bathroom lighting a...
  18. S

    RCBO fitting

    Hi guys, ive got some work to do on a domestic lighting circuit and I need to provide RCD protection to the circuit, can I fit an RCBO int the existing insulated consumer unit and issue a minor works certificate or do I need to price for replacing with an 18th edition consumer unit?
  19. S

    Previously working PV/Battery system starting popping RCBO when SMETS2 meter fitted

    We had a PV/battery system was fitted in late May, and measurements showed it was working very well, but then a few weeks ago the old meter (electronic box about the size of a large cigarette packet) was replaced with a SMET2 meter and everything went down hill! When the PV system was working...
  20. M

    Only 2 brands for domestic type A rcd/rcbo + type 2 spd in board??

    Looking around I'm wondering if I'm going mad. Would have thought type 2 spd next to main switch and type A (not type AC) rcd/rcbos would be the standard everyone should be looking for now (even if it's just recommended and not strictly required in domestics). But only Wylex and Schneider seem...

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