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:
“Corporation. An ingenious device for obtaining individual profit without individual responsibility.”
—Ambrose Bierce (1842–1914)