I have two 1991 MK consumer units, each with 12 used MCB slots. It is a big house, and when we bought it, there were three fuse boards, one for each floor.
One of the MK's has loading on it for a cooker (45A MCB, 6mm T&E), an immersion heater (32A MCB, 2.5mm T&E), heat pump (45A MCB, 6mm T&E) and lighting/socket ring mains (6A/32A). The other just has lighting and socket ring mains.
Intuitively I would like a better balance between the two units. Is there any benefit to (say) moving the immersion and/or heat pump on to the less loaded CU.
All CU and circuits appear to operate well.
Final question, can I free up a CU MCB position by using one MCB to serve more than one ring main - ie is that compliant/unwise. The upstairs sockets seldom get used - may be a fan heater occasionally.
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