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rcbo

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  1. 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...
  2. 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...
  3. 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 -...
  4. 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...
  5. E

    The fastest RCBO in the world

    What is the fastest RCBO you know? Fastest is meaning it has the lowest trip times.
  6. 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
  7. 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...
  8. kropaske

    MK RCBO compatibility check

    Will any MK RCBO's fit this board? It's Sentry range with LN5920 mcb's
  9. 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
  10. 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...
  11. Alan-N

    Contactum DP RCBO source

    Anyone aware of a supplier for Contactum 40A Type A B Curve 1P+N Compact RCBO's (CCPBR06401AB) Google has let me down. I have checked all the usual suspects (TLC, Screwfix, Toolstation, Rexel, Yess, CEF etc), and nobody lists a DP only SP
  12. S

    DIY - Am I testing my EV charger RCBO correctly?

    Hi all, just a quick one to ask about an issue I'm having with my EV charger. I'll give a little background first but ultimately I want to know if I reached the correct conclusion or whether I'm actually doing something wrong with the testing? I had an EV charger installed a couple months back...
  13. C

    UK 50 Amp RCBO blue wire size question.

    I have a 50 Amp RCBO by "FuseBox" My device is part number RTO65030B https://lamplec.co.uk/ProductDetails/?code=RT065030B From a layman's point of view the blue neutral cable looks very feeble for a 50 Amp maximum load. Also there seem to be some RCBO's on sale with the bottom clamp terminal...
  14. FatAlan

    MK AFDD / RCBO module for MK Sentry CU?

    Been a while since I last posted on here. Hope everyone is keeping well. 👍 I appears for interweb searching the MK or the new guise of MK are producing an AFDD / RCBO that will fit the MK Sentry CU’s. Is anyone actually selling them? I see that TLC show a manufactures spec sheet but unless I...
  15. A

    power fed light switch Hager rcbo won’t trip

    Power fed light switch and all lights test great, as soon as we put the dimmer switches in the Hager rcbo won’t trip, any ideas please
  16. 9

    RCBO didn't manually turn off

    Hi all, Turned off RCBO (Lewden B32 6kA) to fit new socket. I always test for voltage with both a volt stick and voltage tester. Volt stick went mad. Went back to check the RCBO and its switch was in down position but for some reason not actually "off". Seemed a bit wiggly - switch wasn't...
  17. L

    Hager NB106 Mcb change to RCBO

    Hi Guys I'm not a Hager user so hence the question. I've been asked to wire in lights and a fan etc for a bathroom for a mate of mine who's a bathroom installer, I've called at the house today to take a look so I can price the work, the existing consumer unit is a plastic board fitted out...
  18. N

    Selling 30x FuseBox 32A RCBO Type A RTA063230B and SIET Neon Transformer 9kv 25ma

    Hi, Selling the following: 30 x FuseBox 32A RCBO Type A RTA063230B brand new in individual boxes - £11.99 each. SIET Neon Transformer 9kv 25ma - £100 CK Pro Cobalt Bi-Metal HSS Hole Saws 51mm-105mm - £10 to £18 Thanks
  19. H

    AFDD!? RCBO!? Any advice please

    Good morning all, My first post on here! Be kind :) I have had a customer come to me who has a care home for the elderly. I have not carried out the EICR but have been given the sheets. They have had an EICR carried out in December 2020, the EICR has failed on a couple of things one been...
  20. J

    RCBO energy consumption

    RCBOs consume between 1.5 and 2.5 watts for each pole - according to Wylex. Have a CU with largish bank of DP RCBOs then the annual cost of just having RCBOs is substantial. It is not just a few quid a year in electricity costs to have them. My question is: Do RCBOs still consume electricity...

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