Technical Parameters Electrical Ratings Device Type: Residual Current Circuit Breaker with Overcurrent Protection (RCBO) Number of Poles: 1 P + N (phase + neutral) Rated Current (In): 20 A Tripping Characteristic: C‑curve (medium inrush tolerance) Rated Residual Current (IΔn): 30 mA (earth leakage protection) Type of Residual Current: Type A (detects AC and pulsating DC leakage) Rated Operational Voltage: ~230/240 V AC, 50 / 60 Hz Rated Insulation Voltage (Ui): ~500 V AC Rated Impulse Withstand Voltage (Uimp): ~4 kV Rated Short‑Circuit Breaking Capacity: 6 kA typical ultimate breaking capacity Service breaking capacity at rated conditions Energy Limiting Class: Class 3 Current Limitation: Yes (internal limitation per IEC standards) Protection Functions Overload Protection: Thermal‑magnetic trip Short‑Circuit Protection: Magnetic trip Residual Current Protection: Trips at ≥ 30 mA leakage Protection Against Direct and Indirect Contact: Provided by combined RCBO action Mechanical & Mounting Mounting: Standard DIN‑rail (35 mm) Terminal Type: Cage or screw terminals for line, load, and neutral Neutral Facility: Firm neutral connection with switched/unswitched variants depending on version Contact Position Indication: ON/OFF indication on the toggle Number of Modular Widths: 2 modules wide (compact footprint) Environmental & Durability Pollution Degree: Typical industrial/class 3 Mechanical Endurance: ~20,000 operations Electrical Endurance: ~10,000 operating cycles Operating Temperature: ~‑25 °C to +55 °C Storage Temperature: wider industrial range