rcbo

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  1. 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
  2. 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.
  3. 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...
  4. 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...
  5. 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...
  6. 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...
  7. 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
  8. 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?
  9. 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...
  10. 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?
  11. 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...
  12. 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...
  13. DT1991

    SCHNEIDER RCBO

    Fitted a new Schneider RCBO B20 30mA Single Pole Type A. Connected function earth and neutral lead, with rcbo turned off, turned slider on, turned rcbo on, tested operation of push button and it went kapot! Test button now stuck in and will not reset? Ideas anyone or just a faulty RCBO? Edit...
  14. T

    RCBO tests

    Anyone an idea why an RCBO measures >40ms on a 5x test on the second half of the sine wave but all other tests are within requirements? Sorry, it's not a single RCBO, there's 2 RCBOs in this board and both have similar results leading me to think not a faulty RCBO but an issue further upstream...
  15. sythai

    Wireless/ App switching.... what do you recommend

    Hi All We've recently got a foot in the door with a decent garden company who are promising lots of work. There's been talk about wireless/ app controlled lighting, pumps etc. To be honest I've not been down this route just yet. Just seeing what makes any of use/ recommended please? Only...
  16. STM

    RCBO for Vynckier CU

    Hello all, Do any of you know if vynckier made RCBO'S, or if another similar brand RCBO fits a vynckier consumer unit. Had a little look on ebay, but not having much luck. Any help would be much appreciated. Cheers :)
  17. Lucien Nunes

    Recommend me a small CU with DP MCBs / RCBOs

    I need to go shopping in the morning for a small metal CU, about 5 outgoing circuits, but they have to be fitted with DP OCPD including some C-type. One overall RCD is OK but if I can get suitable RCBOs that is a possible. It's so rare that I fit a small single-phase board, I've no idea which...
  18. T

    Memshield 2 RCBO's tripping when using two way radio's

    We are going through a building (now unoccupied) to identify from old drawings and what circuit charts there are to prove what does what before safe isolation to do alterations and remove. We are doing this for the ground floor however the boards are in the roof area. To do this we are using 2...
    • Toneyz
    • Thread
    • memshield rcbo rcbo's tripping two way using when
    • Replies: 11
    • Forum: UK Electrical Forum
  19. ELECNEWT

    RCBO with Functional Earth Lead.

    I have read somewhere, (but I can't locate the source), that because the RCBO's electronic control operates at a very slightly higher potential than earth, there is a very small leakage to earth through the functional earth lead. Is this correct or is my memory playing tricks?
  20. polo1

    RCBO for Wylex NSB range

    Hi peeps, anyone know if the current Wylex standard size rcbo will fit a board populated with the NSB range of mcbs? If not, anything that does? TIA
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