rcbo

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  1. HappyHippyDad

    Type A RCBO for this consumer unit?

    Hello all.. I'm quoting for some work and would like change the type AC RCBO to a type A. Consumer unit is a castlec which I have not come across before. I can see from their site they make them, but cannot find them for sale? Also, are they rebranded? Is there another identical breaker that...
  2. S

    Lights RCBO keeps tripping randomly

    I have an issue with a home lighting circuit 6A RCBO provides power to 13 bulbs which randomly keeps tripping, when I say randomly it keeps tripping with no switches or even bulbs being attached to the circuit. Even trips when other appliances that are not on that lighting circuit are not being...
  3. S

    RCBO in office consumer unit

    Hi all Now being upfront I am not a sparks. I am about to have some work done by a friend (certified) and as he is doing me a favour I want to as much ground work and speccing up as I can. So heres the situation. we have a summer house at the end of the garden which is being fed by swa from a...
  4. K

    Consumer unit rcbo spd price

    Evening all . Just a quick question what do you guys typically charge for an rcbo spd consumer unit change 14 way . 10/11 rcbos few spare ways . New meter tails . All certified /notified Cheers
  5. A

    UK reg to say 2 different size cables cant be used on one circuit if rcbo rated to lower cable?

    Came across a cooker circuit with 10mm and 40A rcbo. Last leg was 6mm. Isolator to outlet. I downgraded to rcbo to 32A to accommodate the 6mm. Does the cable have to be the same throughout? If so what is the reg for this please. 🤔
  6. KelvinGaliny

    Can Live wire runs through the Neutral side of RCBO?

    So I had an inquiry to make an electric panel (single phase) with RCBO, but it seems like our customer uses type C and F power plug (I live in Indonesia). This plug doesn't have a guide to ensure the Neutral would always be in Neutral side & Live to always be in Live side. Can I still use RCBO...
  7. S

    Suitable RCBO for EESS install

    Hi Doing my first Inverter and Battery install on a domestic property having just completed my EESS course with LCL. Question is how do I install a bi directional RCD/RCBO at the distribution board to supply and feed back power from the the inverter? I think I need an RCBO to the standard...
  8. H

    Wylex RCBO Test - To middle versus bottom position

    Last week I took the opportunity of having the mains power off to test the RCBOs in a Wylex Consumer Unit, fitted nearly 5 years ago, which has the following: 1 off NHXS1B40, 4 off NHXS1B32, 2 off NHXS1B16, 3 off NHXS1B06 and 1 off NHXS1B25 Now on Test, the B40 switch went to the mid position...
  9. sythai

    Crabtree Starbreaker - help please

    Hi Guys Forget to take cover off on last visit, back there Tue and need to sort some RCD protection. Will this rcbo fit in this 'older starbreaker' DB ? couple pics attached Thanks Sy
  10. M

    AM2S Insulation Resistance Test on RCBO

    Hello, I’ve got my AM2S coming up and I’ve been revising like mad but I’m stuck on something. I’ve read that it’s a 3 phase board with just one RCBO for the ring circuit. Assuming they want me to do a global IR test, can I take the conductors out of the RCBO, switch it off, and then test...
  11. W

    What type of circuit breaker would be used for a three phase circuit?

    Hi , Currently doing a design project in college and I need to pick a circuit breaker ( In device rating and type) for a food holding equipment unit that requires a 16A 400V three phase and neutral supply that is supplied by 5 core SWA. I think I should pick a 16A 3P+N RCBO but wasn't completely...
  12. E

    Need a portable RCBO to trip faster than general

    I have a general RCBO (in attached image) Merlin Gerin multi 9 ID' clic 40A 30mA that protects a house and a second portable RCBO Siemens 10mA that protects a power strip. I tested different RCBO 10mA marked as sensible (some designed for bathroom, high humidity) in this portable power strip -...
  13. A

    Caravan Hook-Up RCBO Current Rating

    I have a small caravan park with 8 pitches. Each have a Rolec Electrical Hook-Up unit fitted with a Rolec 16A Single Pole and Neutral 2 Module C Curve 6kA 30mA RCBO. I've recently fitted meters to these units which display voltage, Current and kW. I was surprised to see that some of the...
  14. E

    The fastest RCBO in the world

    What is the fastest RCBO you know? Fastest is meaning it has the lowest trip times.
  15. V

    DIY - help! - RCBO consumer unit

    Hello, Which amendment of the 18th BS7671 required RCDs for protecting lighting circuits (domestic)? I was told it’s amendment 2. Is that correct? Or is it amendment 1? Thanks
  16. newfutile

    Solar trips rcbo c16

    There are 2 inverters feeding into a dorman smith C16 rcbo , every time I visit this site (communal area power) it has tripped. it switches on first time and never trips when im on site (though there is cloud cover today). all the correct DC and AC isolators are present the inverters are a...
  17. kropaske

    MK RCBO compatibility check

    Will any MK RCBO's fit this board? It's Sentry range with LN5920 mcb's
  18. Simonson82

    Dual rcd board to rcbo

    I've got a dual rcd mk sentry board that I want to inverter into an rcbo board. If I link the two neutral bars from the main switch is this OK to do regs wise? Thanks
  19. W

    25A rcbo from Fusebox😀

    So I have just swapped over to using fusebox as my go to brand for CUs and I noticed they stock a 25A RCBO…mmmmmm do any of you use these a great deal? a slightly more generous 2.5mm radial(conditions allowing of course) than the standard 20A or a 4mm radial under various derating conditions...
  20. HappyHippyDad

    Cooker RCBO trips when any other RCBO tested?

    I will start with apologies, as I have not thought this through very much (at all) yet and have just sat down with a beer.... meaning I thought I'd ask the collective. CU change today. I did my pre checks and I knew I had a major IR fault on the cooker circuit (N-E 0.3ohms, yes that figure is...
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