Residual Current Devices (RCD / RCCB)

Residual Current Devices, also known as RCD or RCCB, are protective devices designed to protect people and electrical installations from dangerous earth leakage currents. They continuously monitor the difference between phase and neutral currents and automatically disconnect the power supply when leakage is detected, reducing the risk of electric shock and fire hazards.

The category includes various rated currents and sensitivity levels, including 30 mA protection for personal safety as well as solutions for specific installation requirements. Available in 2-pole and 4-pole versions for single-phase and three-phase systems. Standard DIN rail mounting ensures easy integration into modular enclosures.

AC, A, F and B type devices are available to match different load characteristics, from standard household applications to inverter-based and industrial systems. Properly selected RCD/RCCB devices ensure compliance with current electrical safety standards in both new installations and modernization projects.