⚡ Circuit Breaker

RCCB

A Residual Current Circuit Breaker (RCCB) monitors the balance between live and neutral currents and disconnects the supply when earth leakage is detected, protecting people against electric shock and reducing fire risk. It does not provide overload protection.

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⚠️ Note: Requires upstream/downstream overcurrent protection; type and sensitivity must follow local regulations and be installed by a qualified electrician. Values are typical/indicative.

Typical specification

Property	Typical value
Type	Residual Current Circuit Breaker
Protects against	Earth leakage / residual current (shock protection)
Current rating	Typically 25-100 A
Breaking capacity	Depends on backup protection; typical residual sensitivity 30 mA (also 10/100/300 mA)
Poles	2P (single-phase) or 4P (three-phase)
Trip curve	Not applicable (residual-current sensing, type AC/A/F/B)
Standard	IEC/EN 61008-1

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 Confirm the final spec sheet before ordering; we do not publish fixed prices, request a quote for current offers.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

Group or whole-board earth-fault protection for socket circuits, bathrooms, and wet areas in residential installations.

What to specify when you request a quote

Rated residual sensitivity (IΔn), e.g. 30 mA for additional shock protection
Rated current (In) sized to the circuits it supplies
RCD type (AC, A, F, B) suited to the waveform of connected loads
Number of poles for single- or three-phase supply

Related in Circuit Breaker

MCB RCBO MCCB Surge Protector ← All circuit breaker

FAQ

Does an RCCB protect against overload?

No. An RCCB only detects earth leakage; it must be used together with MCBs (or a fuse) that provide overload and short-circuit protection.

What sensitivity is used for shock protection?

A 30 mA RCCB is commonly specified for additional protection against electric shock on socket and wet-area circuits, as required by many wiring regulations.

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

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