**Product Description**: Siemens RCCB (Residual Current Circuit Breaker), Model: 5SV5346-0, 4P version, rated at 63 A. Designed to quickly disconnect the electrical circuit in case of earth leakage currents exceeding 30 mA to prevent electric shock and fire hazards. **Technical Specifications**: - Number of Poles: 4P - Rated Current: 63 A - Sensitivity: 30 mA - Rated Breaking Capacity: 6 kA - Standard: IEC/EN 61008-1 compliant - Type: AC (responds to sinusoidal AC leakage only) - Mounting: DIN rail compatible - Voltage: 230/400 V AC - Frequency: 50/60 Hz - Test Button: Built-in for periodic functionality check - Housing Color: White/Grey **Applications**: - Residential dwellings to protect lighting and socket circuits - Bathrooms, kitchens, and other damp environments - Small commercial facilities such as kiosks and shops - Circuits for water heaters, washing machines, and garden lighting - Ensures electrical safety and user protection in everyday installations