Does the AMP rating of the MCB fitted with in a RCCB have to match up exactly with the showers AMP rating or can it be higher ?
For instance when fitting a 8.5KW 40A shower can I safely use a RCCB with a 50A MCB or does it have to be 40A rating ?
I would really appreciate a firm reply ASAP as i need to place the order tonight if possible.
Thanks
Archy
For instance when fitting a 8.5KW 40A shower can I safely use a RCCB with a 50A MCB or does it have to be 40A rating ?
I would really appreciate a firm reply ASAP as i need to place the order tonight if possible.
Thanks
Archy