Rating of RCDs will depend on the load.
All new work (including change of consumer unit) has to comply with current regulations.
For BS7671 (2008) in most domestic premises that means 2 RCDs or a mix of RCDs and RCBOs (or all RCBOs if you are rich).
Can u post a pic of your consumer unit?
All new work (including change of consumer unit) has to comply with current regulations.
For BS7671 (2008) in most domestic premises that means 2 RCDs or a mix of RCDs and RCBOs (or all RCBOs if you are rich).
Can u post a pic of your consumer unit?