ABB S203MC32-1 three-pole miniature circuit breaker with a 32 A rating, C-curve tripping characteristic and 10 kA short-circuit capacity for commercial and industrial circuit protection.
£99.76
The ABB S203MC32-1, also identified as S203M-C32, is a high-performance three-pole miniature circuit breaker (MCB) designed to protect electrical circuits against overloads and short circuits. As part of the established ABB System pro M compact S200M series, it provides dependable circuit protection for commercial, industrial and residential 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, control panels, small motors and general power distribution.
With a rated current of 32 A, a three-pole configuration and a rated short-circuit capacity of 10 kA at 230/400 V AC, the S203MC32-1 provides robust protection for three-phase electrical circuits. Its compact three-module design enables straightforward installation on a standard 35 mm DIN rail inside distribution boards, switchboards and industrial control panels.
The ABB S203MC32-1 automatically disconnects an electrical circuit when an overload or short circuit occurs, helping protect cables, connected equipment and the wider installation. 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 S203MC32-1 suitable for general power distribution, lighting systems, HVAC equipment, control circuits and machinery where predictable starting currents are present.
| Current | 32 A |
|---|---|
| Phase | Single Phase |
| Manufacturer | ABB |
| Series | System pro M compact S200M |
| Model | S203M-C32 |
| Commercial reference | S203MC32-1 |
| Product ID | 2CDS273001R0324 |
| EAN | 4016779550482 |
| Product type | Miniature circuit breaker |
| Number of poles | 3 |
| Number of protected poles | 3 |
| Rated current | 32 A |
| Tripping characteristic | C curve |
| Rated operational voltage | 230 / 400 V AC |
| Maximum operational voltage | 440 V AC |
| Rated frequency | 50 / 60 Hz |
| Rated short-circuit capacity (Icn) | 10 kA at 230/400 V AC |
| Rated ultimate breaking capacity (Icu) | 15 kA at 400 V AC |
| Rated service breaking capacity (Ics) | 7.5 kA |
| Rated insulation voltage | 440 V |
| Rated impulse withstand voltage | 4 kV |
| Energy-limiting class | 3 |
| Protection rating | IP20 |
| Terminal type | Screw terminals |
| Tightening torque | 2.8 N·m |
| Mounting type | 35 mm DIN rail |
| 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 × 52.5 × 69 mm |
| Weight | approximately 0.38 kg |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
The ABB S203MC32-1 protects three-phase electrical circuits against overloads and short circuits in commercial, industrial and residential installations.
The miniature circuit breaker has a rated current of 32 A.
A C-curve circuit breaker is suitable for circuits with moderate inrush currents, including lighting systems, HVAC equipment, small motors and general power distribution.
The circuit breaker has a rated short-circuit capacity of 10 kA at 230/400 V AC and an ultimate breaking capacity of 15 kA at 400 V AC.
The S203MC32-1 is installed on a standard 35 mm DIN rail inside an electrical distribution board, switchboard or industrial control panel.
ABB System pro M compact S200M miniature circuit breakers are widely used by electrical contractors, panel builders and automation engineers for dependable circuit protection, high breaking capacity and long-term performance.
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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...