Technical Parameters
Electrical Ratings
Rated Current (In): 4 A
Number of Poles: 2P (two poles)
Tripping Curve: C‑curve (moderate inrush tolerance)
Rated Operational Voltage (Ue):
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 / 60 Hz
Rated Short-Circuit Breaking Capacity (Icn): 10 kA at 230/400 V AC
Rated Ultimate Breaking Capacity (Icu): up to 15 kA
Current Limiting Class: 3
Overvoltage Category: III
Rated Impulse Withstand Voltage (Uimp): 4 kV
DC Interrupting Capability: up to ~125 V DC
Mechanical & Installation
Mounting: Standard DIN‑rail (35 mm)
Terminal Type: Screw terminals
Tightening Torque: Approx. 2 N·m
Mechanical Endurance: ~20,000 operations
Electrical Endurance: ~20,000 AC cycles
Contact Position Indication: ON (red) / OFF (green)
Housing Material: High-quality insulating material (light grey)
Environmental
Ambient Operating Temperature: −25 °C to +55 °C
Pollution Degree: 3
Protection Rating: IP20 (installed in enclosure)
Mounting Position: Any
The ABB S202‑C4 is a compact 2‑pole miniature circuit breaker from the ABB System pro M (S200) series, designed for reliable overload and short‑circuit protection in low‑voltage distribution systems. It integrates a thermal trip for overload protection and a magnetic trip for short-circuit protection, providing high safety and reliability.