Will an MK Sentry insulated consumer unit take Volex RCBOs/MCBs? Everything
is/will be brand new, just shopping around the get the combination I need.
(i.e. RCBOs below 30 quid and a 16 way CU). AFAIK, they're both standard DIN
rail, but I've heard people have trouble with certain combinations due to
cut out sizes etc.

Christian.