Technical Specifications
Parameter Specification
Model / Type ABB S204‑D63
Product Type 4‑Pole Miniature Circuit Breaker (MCB)
Series / Family System pro M / S200 series
Tripping Characteristic Type D (high inrush tolerance)
Rated Current (In) 63 A
Number of Poles 4 poles (4P)
Rated Operational Voltage (Ue) 400 V AC (IEC 60898‑1) / 440 V AC (IEC 60947‑2)
Rated Insulation Voltage (Ui) 440 V AC
Rated Impulse Withstand Voltage (Uimp) 4 kV (higher at sea level)
Rated Frequency 50 / 60 Hz
Rated Ultimate Breaking Capacity (Icu) 20 kA @ 230 V AC; 10 kA @ 400 V AC
Rated Service Breaking Capacity (Ics) 15 kA @ 230 V AC; 7.5 kA @ 400 V AC
Rated Short‑Circuit Capacity (Icn) 6 kA (AC)
Energy Limiting Class Class 3
Connection Type Failsafe bi‑directional screw terminals
Tightening Torque ~2.8 N·m
Mounting DIN‑rail (TH35)
Contact Position Indication Red ON / Green OFF
Pollution Degree 3
Overvoltage Category III
Degree of Protection IP20
Ambient Operating Temperature –25 °C to +55 °C
Connectable Conductors Solid: 0.75–35 mm²; Flexible: 0.75–25 mm²
Mechanical Endurance ~20,000 cycles
Electrical Endurance ~10,000 AC cycles
The ABB S204‑D63 is a 4‑pole miniature circuit breaker (MCB) from the ABB System pro M / S200 series, designed to provide reliable overload and short‑circuit protection in low‑voltage AC electrical distribution systems. It utilizes a Type D trip characteristic, which allows higher tolerance for high inrush currents such as those drawn by motors and transformers, while still offering dependable protective operation. The breaker is DIN‑rail mountable and features screw‑type terminals with clear ON/OFF position indication, making it suitable for residential, commercial, and light industrial applications