A Residual Current Circuit Breaker is a life-saving protective device that detects current imbalances in electrical circuits and disconnects the circuit within milliseconds in the event of an electrical leakage. Its primary function is to measure the current difference between the phase and neutral conductors in the electrical installation, protecting individuals against electric shock and structures against fire risks caused by leakage current.

Making a difference with domestic manufacturing technology, Sigma Residual Current Circuit Breakers safeguard human life against direct or indirect contact with electrical leakages while ensuring life and property safety by preventing fire risks arising from insulation faults.

Fully compliant with TS EN 61008-1 standards and CE norms, Sigma Residual Current Circuit Breakers combine quality with the power of domestic engineering.

New Sigma 10 mA Threshold Residual Current Circuit Breaker

The new Sigma 10 mA threshold Residual Current Circuit Breakers are specially designed to protect people from electric shocks in high-conductivity water environments such as swimming pools, ornamental pools, Turkish baths (hamams), and saunas.

If a person swimming in water is exposed to a current level of 15 mA - 20 mA, their muscles lock up, rendering them unable to move. This limit, known as the "Let-Go Threshold," is around 10 mA for an average adult. The new Sigma residual current circuit breaker cuts off the power even before reaching this critical 10 mA threshold—at just 7-8 mA levels—ensuring complete safety in high-risk environments involving water.