Key Technical Parameters General & Electrical Ratings Product / Model: ABB S204‑C80 Miniature Circuit Breaker Number of Poles: 4 (four‑pole) Rated Current (In): 80 A Tripping Characteristic: Type C (for moderate inrush current) Rated Operational Voltage: 400 V AC (typical three‑phase systems) Operational Frequency: 50 Hz / 60 Hz Rated Insulation Voltage (Ui): 440 V Rated Impulse Withstand Voltage (Uimp): ~4 kV (higher at altitude) Rated Short‑Circuit Breaking Capacity (Icu): • ~6 kA at 400 V AC • Up to ~20 kA at 230 V AC (conditional) Service Short‑Circuit Breaking Capacity (Ics): ~6 kA at 400 V AC Current Limiting Class: Class 3 (limits let‑through energy during fault) Overvoltage Category: Category III Rated Voltage Type: AC Mechanical & Installation Mounting: DIN‑rail (TH35) Actuator Type: Toggle handle with ON/OFF marking Terminal Type: Screw terminals (failsafe cylinder‑lift) Connectable Conductor Size: Solid: ~2.5–50 mm² Stranded: ~2.5–50 mm² Flexible: ~4–35 mm² Tightening Torque: ~3 N·m Mechanical Endurance: ~20,000 operations Electrical Endurance: ~10,000 AC cycles Width: ~4 modular units (~70 mm) Depth: ~69 mm Height: ~88 mm Degree of Protection: IP20 (housing, terminals) / IP40 with enclosure Environmental Ambient Operating Temperature: ~‑25 °C to +55 °C Storage Temperature: ~‑40 °C to +70 °C Applications Overload & Short‑Circuit Protection: protects branch circuits and feeders. Three‑Phase Power Distribution: used in industrial and commercial electrical panels. Load Types: suitable for circuits with moderate inrush (lighting, small motors, general loads). Compact Modular Breaker: fits standard DIN modular panels.