Key Technical Parameters General & Electrical Ratings Product / Model: ABB S204‑C32 4‑Pole Miniature Circuit Breaker Rated Current (In): 32 A Number of Poles: 4 (three phases + neutral) Tripping Characteristic: Type C (moderate inrush tolerance) Rated Operational Voltage: up to 400 V AC (IEC 60898‑1) up to 440 V AC (IEC 60947‑2) Rated Insulation Voltage (Ui): 440 V Rated Frequency: 50 Hz / 60 Hz Standards Compliance: IEC/EN 60898‑1, IEC/EN 60947‑2, UL 1077, CSA 22.2 Degree of Protection: IP20 housing Operational Ambient Temperature: –25 °C to +55 °C Pollution Degree: 3 Short‑Circuit & Breaking Capacities Rated Ultimate Short‑Circuit Breaking Capacity (Icu): 20 kA at 230 V AC 10 kA at 400 V AC Rated Service Short‑Circuit Breaking Capacity (Ics): 15 kA at 230 V AC 7.5 kA at 400 V AC Rated Short‑Circuit Capacity (Icn): 6 kA at 400 V AC Rated Impulse Withstand Voltage (Uimp): 4 kV Dielectric Test Voltage: 2 kV (50/60 Hz, 1 min) Energy Limiting Class: 3 Mechanical & Installation Mounting Type: DIN‑rail (TH35) Terminal Type: Screw terminals (failsafe bi‑directional) Tightening Torque: ~2.8 N·m Wire Stripping Length: 12.5 mm Mechanical Endurance: ~20,000 cycles Electrical Endurance: ~10,000 AC cycles Actuator: Toggle with ON/OFF indication Physical Housing Width: 4 modular units Dimensions (approx): Width ~70 mm × Height ~88 mm × Depth ~69 mm Contact Position Indication: Red (ON) / Green (OFF) Connectable Conductor Sizes: Solid: 0.75 – 35 mm² Stranded: 0.75 – 25 mm² Applications Overload and short‑circuit protection in three‑phase power distribution circuits Protection of branch circuits in commercial and industrial panelboards Suitable for moderate inrush loads (lighting, small motors) Compatible with accessory modules like auxiliary contacts, shunt trips, alarm switches