RCCB Earth-Leakage Breaker

TOMZN Electromagnetic RCCB Residual Current Circuit Breaker… is a residual current circuit breaker — earth-leakage protection for people.

A residual current circuit breaker compares the current flowing out with the current returning and trips when the difference exceeds its rating — which is what happens when current is leaking to earth, most seriously through a person. This is life-safety protection, and it is a different job from the overload protection an MCB provides; a full installation normally wants both.

Stated ratings

• Current rating: 40 A / 63 A
• Poles: 2P / 4P

Supplied and supported in Egypt with nationwide delivery.

Protective and distribution equipment must be selected to suit the circuit it protects and installed by a qualified electrician. The ratings above are those stated by the manufacturer for this model; for breaking capacity, tripping curves, terminal sizes and wiring diagrams, see the manufacturer's datasheet.