Definitions of different fuses

The link to the wiki is at the top of the page - it has loads of info, including most of the stuff you want to know, but in short:

MCB: overload protection
RCD/RCCB: earth fault protection
RCBO: both


Davy
 
Not sure if you mispelt RCB perhaps you mean RCD...

RCBO Residual Current Breaker With Integral Overload Protection
RCCB Residual Current Circuit Breaker
RCD Residual Current Device
MCB Miniature Circuit Breaker
 

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