*Types*: Miniature Circuit Breakers (MCBs), Residual Current Devices (RCDs), and Earth Leakage Circuit Breakers (ELCBs).
*MCBs*: Rated in amps (e.g., 6A, 10A, 16A, 20A, 32A).
*RCDs*: Typically 30mA (for personal protection) or 100mA/300mA (for fire protection).
MCBs protect against overcurrent.
RCDs protect against earth faults and electrocution.
*Tripping curves*: B, C, D curves for different applications (e.g., C for general residential).