ABB S204C63 four-pole miniature circuit breaker with a 63 A rating, C-curve tripping characteristic and 6 kA short-circuit capacity for residential, commercial and industrial circuit protection.
£194.79
The ABB S204C63, also identified as S204-C63, is a high-performance four-pole miniature circuit breaker (MCB) designed to protect cables and electrical circuits against overloads and short circuits. Part of the established ABB System pro M compact S200 series, it is suitable for residential, commercial and industrial electrical installations.
The circuit breaker combines a delayed thermal tripping mechanism for overload protection with an electromechanical tripping mechanism for rapid short-circuit interruption. Its C-curve tripping characteristic is suitable for circuits with moderate inrush currents, including lighting systems, HVAC equipment, distribution boards, control panels and general-purpose machinery.
With a rated current of 63 A, a four-pole configuration and a rated short-circuit capacity of 6 kA at 400 V AC, the S204C63 provides dependable protection for three-phase systems requiring simultaneous switching of four conductors. Its compact four-module design allows straightforward installation on a standard 35 mm DIN rail.
The ABB S204C63 automatically disconnects the electrical supply when an overload or short circuit is detected. Its thermal mechanism responds to sustained excess current, while the electromechanical mechanism provides rapid interruption during severe fault conditions.
The C-curve characteristic permits moderate temporary current surges without unnecessary tripping. This makes the breaker well suited to three-phase distribution systems, HVAC installations, lighting circuits, control equipment and machinery with predictable starting currents.
| Current | 63 A |
|---|---|
| Phase | Single Phase |
| Manufacturer | ABB |
| Series | System pro M compact S200 |
| Model | S204-C63 |
| Commercial reference | S204C63 |
| Product ID | 2CDS254001R0634 |
| EAN | 4016779551113 |
| Product type | Miniature circuit breaker |
| Number of poles | 4 |
| Number of protected poles | 4 |
| Rated current | 63 A |
| Tripping characteristic | C curve |
| Rated operational voltage | 400 V AC |
| Maximum operational voltage | 440 V AC |
| Minimum operational voltage | 12 V AC/DC |
| Rated frequency | 50 / 60 Hz |
| Rated short-circuit capacity | 6 kA at 400 V AC |
| Rated ultimate breaking capacity (Icu) | 20 kA at 230 V AC; 10 kA at 400/440 V AC |
| Rated service breaking capacity (Ics) | 15 kA at 230 V AC; 7.5 kA at 400/440 V AC |
| Rated insulation voltage | 440 V |
| Rated impulse withstand voltage | 4 kV |
| Energy-limiting class | 3 |
| Power loss | 19.2 W total; 4.8 W per pole |
| Protection rating | IP20 |
| Protection in enclosure | IP40 with a suitable cover |
| Terminal type | Failsafe bidirectional cylinder-lift screw terminals |
| Rigid conductor capacity | 0.75 to 35 mm² |
| Flexible conductor capacity | 0.75 to 25 mm² |
| Tightening torque | 2.8 N·m |
| Mounting type | 35 mm DIN rail |
| Operating temperature | -25 to +55 °C |
| Electrical endurance | 10,000 operating cycles |
| Mechanical endurance | 20,000 operating cycles |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2 and UL 1077 |
| Dimensions (H × W × D) | approximately 88 × 70 × 69 mm |
| Weight | approximately 0.50 kg |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
The ABB S204C63 protects four-pole electrical circuits against overloads and short circuits in residential, commercial and industrial installations.
The miniature circuit breaker has a rated current of 63 A.
A C-curve miniature circuit breaker is suitable for circuits with moderate inrush currents, including lighting systems, HVAC equipment, control panels and general power distribution.
The circuit breaker has a rated short-circuit capacity of 6 kA at 400 V AC and an ultimate breaking capacity of 10 kA at 400 V AC.
The S204C63 is installed on a standard 35 mm DIN rail inside an electrical distribution board, switchboard or industrial control panel.
ABB System pro M compact miniature circuit breakers are widely specified by electrical contractors, panel builders and automation engineers for dependable circuit protection, robust construction and straightforward installation.
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...