ABB S203-D32 three-pole miniature circuit breaker with a 32 A rating, D tripping characteristic and 10 kA breaking capacity for industrial and commercial electrical protection.
£81.04
The ABB S203-D32 is a robust three-pole miniature circuit breaker (MCB) designed to provide reliable protection against overloads and short circuits in commercial and industrial electrical installations. Part of the trusted ABB System pro M compact S200 series, it delivers dependable circuit protection while meeting internationally recognised safety standards.
Featuring both a delayed thermal tripping mechanism for overload protection and an electromechanical tripping mechanism for rapid short-circuit interruption, the S203-D32 offers excellent protection for demanding electrical applications. Its D tripping characteristic makes it particularly suitable for circuits supplying equipment with high inrush currents, including motors, transformers and industrial machinery.
With a rated current of 32 A, a three-pole configuration and a 10 kA rated ultimate short-circuit breaking capacity at 400 V AC, the S203-D32 is ideal for protecting three-phase power distribution systems. Its compact DIN rail mounted design enables fast installation within switchboards, distribution boards and control panels.
The ABB S203-D32 automatically disconnects electrical circuits whenever overload or short-circuit conditions occur, helping to protect wiring, equipment and personnel. Its current-limiting design significantly reduces the energy released during fault conditions, minimising damage to connected equipment.
Its D-curve characteristic is designed for applications where high transient starting currents are expected, making it an excellent choice for motors, transformers, compressors and other inductive electrical loads found in industrial automation and commercial installations.
| Current | 32 A |
|---|---|
| Phase | Single Phase |
| Manufacturer | ABB |
| Series | System pro M compact S200 |
| Model | S203-D32 |
| Product ID | 2CDS253001R0321 |
| EAN | 4016779530958 |
| Product type | Miniature circuit breaker |
| Number of poles | 3 |
| Number of protected poles | 3 |
| Rated current | 32 A |
| Tripping characteristic | D curve |
| Rated operational voltage | 400 V AC (IEC/EN 60898-1) |
| Maximum operational voltage | 440 V AC |
| Rated frequency | 50 / 60 Hz |
| Rated ultimate short-circuit breaking capacity (Icu) | 10 kA at 400 V AC |
| Rated service short-circuit breaking capacity (Ics) | 7.5 kA at 400 V AC |
| Rated impulse withstand voltage | 4 kV |
| Protection rating | IP20 |
| Protection in enclosure | IP40 |
| Terminal type | Screw terminals |
| Mounting type | 35 mm DIN rail |
| Operating temperature | -25 to +55 °C |
| Electrical endurance | 10,000 AC operating cycles |
| Mechanical endurance | 20,000 operating cycles |
| Dimensions (H × W × D) | approximately 88 × 52.5 × 69 mm |
| Weight | approximately 0.375 kg |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
The ABB S203-D32 protects three-phase electrical circuits from overloads and short circuits, particularly where equipment has high starting currents.
The circuit breaker has a 32 A rated current.
D-curve circuit breakers are designed to tolerate higher inrush currents, making them suitable for motors, transformers and other inductive electrical equipment.
The S203-D32 has a 10 kA rated ultimate breaking capacity (Icu) and a 7.5 kA rated service breaking capacity (Ics) at 400 V AC.
It is designed for installation on a standard 35 mm DIN rail inside electrical distribution boards, switchboards and industrial control panels.
ABB System pro M compact S200 miniature circuit breakers are trusted worldwide by electrical contractors, panel builders and industrial automation engineers for dependable circuit protection and long-term reliability.
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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...
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...