6 October 2026 · Paphos Electricians
RCD vs Circuit Breaker: What Is the Difference?
A straightforward explanation of two important forms of electrical protection and why either may trip.
RCDs and circuit breakers both disconnect electricity, but they respond to different fault conditions. Understanding the distinction helps you describe a problem accurately without attempting unsafe repairs.
Different protection, different clues
A circuit breaker generally protects wiring against overcurrent and short circuits. An RCD responds to current imbalance that may indicate leakage to earth. Modern devices can combine functions, so labels and testing matter.
Signs worth paying attention to
- One individual circuit breaker trips under load
- A shared RCD disconnects several circuits
- Protection trips after outdoor equipment or water is involved
The device that moved provides a clue but not a complete diagnosis. For a safe assessment, see our consumer-unit and protection service.
What to check before booking
- Photograph labels without removing the panel cover
- Note which circuits lost power
- List appliances running immediately before the trip
Do not replace a protective device with a different rating to stop nuisance tripping. Related work may also involve our fault-finding service.
When to call an electrician
Stop using the affected circuit if there is heat, smoke, visible damage, repeated tripping or a burning smell. Do not remove covers or touch exposed wiring; arrange an inspection by a suitably qualified electrician.
If you are in Paphos and need a clear assessment, call or message Paphos Electricians. Describe the issue, your location and whether the fault is urgent so the right visit can be arranged.
Related electrical services in Paphos
Need an electrician in Paphos?
Tell us what is happening and where the property is located.