Linked from

The 10 pages that link to Residual-current device, each with the reason it gives.

• Circuit breakerCompared with: It detects leakage to earth rather than relying on excess load current alone.

• Electrical safetyCompared with: Its function is related to, but not identical with, overcurrent protection.

• FuseCompared with: It detects current leakage, a hazard ordinary overcurrent protection may not detect.

• Ground-fault circuit interrupterRelated: It uses the same leakage-current principle as a GFCI, with terminology common outside North America.

• Overcurrent protectionCompared with: It detects leakage to earth, a hazard ordinary overcurrent protection may not detect.

• Mains electricityRelated: It helps protect people from electric shock caused by current leakage.

• Earth (electrical engineering)Related: It can detect leakage to earth even when fault current is too small to trip an overcurrent device.

• AC power plugs and socketsRelated: It can reduce shock risk when current escapes through a person or another unintended path.

• Distribution boardRelated: It detects earth-leakage current and can protect several circuits supplied by the board.

• Earth-leakage circuit breakerRelated: Modern earth-leakage protection commonly uses this differential-current principle.