Residual current circuit breakers (RCCBs) are safety devices designed to detect and interrupt leakage currents caused by faults in electrical systems. These components work to minimize risks like electric shocks or fire hazards arising from ground faults, ensuring operational reliability and personnel protection. **Voltage & Current Ratings:** Rated for a maximum operating voltage of 400 V AC across its four poles. Handles currents up to 63 A under normal conditions, equipped with a residual current sensitivity threshold of 30 mA. **Design & Features:** This unit complies with Type B functionality standards—capable of detecting AC and pulsating DC fault currents as well as smooth DC leakage. Four-pole configuration allows use in three-phase systems or single-phase applications requiring neutral monitoring. Compact profile suited for space-limited installations, DIN rail compatible. - Operates exclusively within frequency range: 50/60 Hz. - Maximum permissible tripping time adheres to IEC guidelines. - Not suitable for environments exceeding an ambient temperature of +40°C. - Must be paired with proper upstream overcurrent protection device—does not provide overload or short-circuit interruption alone. - Intended for installation by trained professionals familiar with RCCB wiring standards.
