I need to change my MCB B32 to MCB B40 for a new shower.
No. Ones other than the originals might fit, but it is absolutely not the case that any and all will fit.Will any make of MCB fit my Crabtree Star Breaker C/U ?
For instance the BusBar?
There are.I just wanted to know if there are any physical differences between MCB's (B rated).
And 23.5A at worst.6mm twin and earth cable is rated at 47 Amps at best. At 240V (real, not nominal).
The other 10%?90% of the cable is in an airy/large loft.
My electric oven is on a MCB B32 running on 6mm cable - no problem there.
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