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:
“A bracelet of bright hair about the bone,
Will he not let us alone,
And think that there a loving couple lies
Who thought that this device might be some way
To make their souls, at the last busy day,
Meet at this grave, and make a little stay?”
—John Donne (1572–1631)