⚡ Circuit Breaker

RCBO

A Residual Current Breaker with Overcurrent (RCBO) combines earth-leakage detection with overload and short-circuit protection in one DIN-rail unit. It protects a single circuit against both shock hazards and overcurrent, avoiding nuisance tripping across multiple circuits.

Request a quote Estimate quantities

⚠️ Note: Type, sensitivity and rating must follow local wiring regulations and be installed by a qualified electrician; figures are typical/indicative.

Typical specification

Property	Typical value
Type	Residual Current Breaker with Overcurrent
Protects against	Overload, short circuit, and earth leakage
Current rating	Typically 6-40 A
Breaking capacity	Typically 6-10 kA (Icn); residual sensitivity commonly 30 mA
Poles	1P+N or 2P (single-phase); 3P/4P available
Trip curve	B, C, or D (overcurrent) plus RCD type AC/A/F
Standard	IEC/EN 61009-1

Indicative / typical values for planning — actual products vary by manufacturer and standard. Confirm the final spec sheet before ordering; we do not publish fixed prices, request a quote for current offers.

Applications

Per-circuit protection where individual earth-fault plus overload protection is wanted, such as dedicated socket, kitchen, or outdoor circuits.

What to specify when you request a quote

Rated current (In) and trip curve for the protected circuit
Residual sensitivity (IΔn), typically 30 mA for shock protection
RCD type (AC, A, F) suited to the connected load waveform
Poles (1P+N or 2P) and breaking capacity for the installation

Related in Circuit Breaker

MCB RCCB MCCB Surge Protector ← All circuit breaker

FAQ

Why choose an RCBO over an RCCB plus MCB?

An RCBO combines both functions in one module, so an earth fault or overload trips only its own circuit rather than a whole group of circuits, improving selectivity and saving board space.

Does an RCBO replace the main switch?

No. An RCBO protects an individual final circuit; the board still needs a main incoming switch or isolator as required by the installation design.

Request a RCBO quote

Send your sizes and quantities (or your floor plan) — our team specs and supplies against it.

Get a Quote