osso Posted August 23, 2005 Share Posted August 23, 2005 I have here a Hager split load (5+5) consumer unit with 100A isolator switch and 63A 30mA RCCB - plus 10 MCB's This consumer unit has been waiting to replace the shabby old consumer unit for quite some time now.. and i've only just got around to find the time to replace the unit, but i've got a question. What do you generally connect to the RCCB circuit? I am thinking here the following... Shower pump, Washing machine, Central heating boiler, Hot water cylindar... Am i thinking along the right lines here? are there any other items that i could connect up to the RCCB circuit? Cheers, James Quote Link to comment Share on other sites More sharing options...
merckx Posted August 23, 2005 Share Posted August 23, 2005 Up to you, I connected everything for safety when I did a full re-wire. In most houses all the circuits are connected apart from the lighting circuits. When I did a little search a few years ago , it mentioned that it would be advantageous to have a separate circuit for the freezer so that it wouldn't be protected by the RCCB . This would prevent you from loosing a full freezer full of food in the event of a fault elsewhere in the house. I just had safety in mind when I did my installation, so I protected all of the circuits with the RCCB. Quote Link to comment Share on other sites More sharing options...
osso Posted August 23, 2005 Author Share Posted August 23, 2005 I've heard about the Lights being on the main switch circuit, but it definitely sounds like a good idea to have the separate circuit for the freezer. Obviously with a 5+5 i am limited in what i can do. but here's the idea RCCB Circuit 1) Hot water cylindar + Shower Pump 2) Ring main 1 (living room) 3) Ring main 2 (little + master bedroom) 4) Ring main 3 (kitchen) 5) Main Switch Circuit 1) Lighting circuit 2) Fridge Freezer (nice idea) 3) Kitchen lighting circuit (Not sure about this yet) 4) 5) But with 1 spare RCCB, im not sure what to do about the following items. Central heating boiler Utility wall socket Electric Oven/Hobs (if i choose electric for new kitchen) Im wondering whether to slap the Central heating boiler and Electric Oven onto the main switch circuit, and use the last RCCB for the Utility wall socket, which would be used for power tools and such like. Quote Link to comment Share on other sites More sharing options...
osso Posted August 24, 2005 Author Share Posted August 24, 2005 Here's the updated plan RCCB Circuit (63A 30mA) 1) Hot water cylindar + Shower Pump 2) Ring main 1 (Little & Master bedroom + Living room + utility wall socket) 3) Ring main 2 (Kitchen) 4) Central heating boiler 5) Electric Oven/Hob Main Switch Circuit (100A) 1) Lighting circuit 2) Fridge Freezer 3) Kitchen lighting circuit? 4) 5) Would it be better to have the Living Room on a separate ring main, if i was to build a dedicated entertainment system in the living room? Quote Link to comment Share on other sites More sharing options...
merckx Posted August 25, 2005 Share Posted August 25, 2005 Would it be better to have the Living Room on a separate ring main, if i was to build a dedicated entertainment system in the living room? Not sure if it would be necessary, you shouldn't need to supply it more current to justify having a separate circuit. Quote Link to comment Share on other sites More sharing options...
Supragal Posted August 25, 2005 Share Posted August 25, 2005 Just make sure each device has it's own designated socket so no daisy chaining of extention leads!! Quote Link to comment Share on other sites More sharing options...
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