hi, does anybody know what size cable i need for my combi boiler. can i add it to my ring main with a spur. also what size mcb do i need...thanks a lot...rob
combi boilers
- Thread starter robthecake
- Start date
Sponsored Links
B
breezer
ring main will already have an mcb
the answer depends on the current draw of your boiler
the answer depends on the current draw of your boiler
Most have an on board 1amp or 500ma fuse.
You can spur off the ring, fuse down with double pole isolation switch to 3 amp. Or you can create a new dedicated radial.
Some MI's allow use of an unswitched socket and plug, as to isolate you have to remove the plug which is effectively double pole isolation. But check MI's they overule everything.
You can spur off the ring, fuse down with double pole isolation switch to 3 amp. Or you can create a new dedicated radial.
Some MI's allow use of an unswitched socket and plug, as to isolate you have to remove the plug which is effectively double pole isolation. But check MI's they overule everything.
DIYnot Local
Staff member
If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Are you a trade or supplier? You can create your listing free at DIYnot Local
Sponsored Links
