Wylex RCBO 6a 10a 16a 20a 32a 40a Amp Type B C 30mA RCBO NHXSBS1 NHX
RCBO stands for 'Residual Current Breaker with Over-Current'. Whereas an RCD is designed solely to protect against earth leakage and an MCB protects only against over-current, an RCBO protects against both types of fault.