Key Features: Type: Residual Current Circuit Breaker (RCCB) with Overcurrent Protection Current Rating: 63 A Number of Poles: 4P (for three-phase systems with neutral) Residual Current Sensitivity: 300 mA (for earth fault protection) Overcurrent Protection: Integrated protection for overload and short-circuit conditions Applications: Suitable for use in industrial, commercial, and residential electrical installations Mounting: DIN rail mounted for easy installation in distribution boards Design: Compact, modular design for space-efficient installation Parameters: Rated Current: 63 A Number of Poles: 4P (three-phase + neutral) Rated Voltage: 400 V Rated Frequency: 50/60 Hz Residual Current Sensitivity: 300 mA (to protect against earth leakage) Breaking Capacity: 6 kA Overcurrent Protection: Thermal-magnetic or electronic (depending on configuration) Mounting Type: DIN rail mountable for ease of installation in electrical panels Insulation Voltage: 690 V Ambient Temperature Range: -5°C to +40°C Mechanical Life: Up to 10 million operations Electrical Life: Up to 6,000 operations at rated current Protection Class: IP20 (touch-safe terminals) Standards Compliance: IEC/EN 61008-1, IEC/EN 60947-2, and other international safety standards