Residual-current device is a generic term covering both RCCBs and RCBOs.
Read more about Residual-current Device: Purpose and Operation, Typical Features, Form Factors, Combined With Overcurrent Devices, Testing, Limitations, History and Nomenclature, Regulation and Adoption
Famous quotes containing the word device:
“Johnson did not answer ...; but talking for victory and determined to be master of the field, he had recourse to the device which Goldsmith imputed to him in the witty words of one of Cibber’s comedies. “There is no arguing with Johnson; for when his pistol misses fire, he knocks you down with the butt end of it.””
—Samuel Johnson (1709–1784)