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Electrical & Plumbing

RCBO

A Residual Current Breaker with Overcurrent protection - a single device that combines the functions of an MCB (protects against overload and short circuit) and an RCD (detects earth faults and protects against electric shock). RCBOs allow individual circuit protection without the nuisance tripping issue of shared RCDs. Their use in new installations is recommended by current wiring regulations (BS 7671).

Related terms

Consumer Unit / Fuse BoardPart P
Rainwater GoodsRCD (Residual Current Device)

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