ABB S203MC2-1 three-pole miniature circuit breaker with a 2 A rating, C-curve tripping characteristic and 10 kA short-circuit capacity for residential, commercial and industrial circuit protection.
£111.51
The ABB S203MC2-1, also identified as S203M-C2, is a premium three-pole miniature circuit breaker (MCB) engineered to protect electrical circuits against overloads and short circuits. As part of the proven ABB System pro M compact S200M series, it delivers dependable protection for residential, commercial and industrial electrical installations.
The circuit breaker incorporates both a delayed thermal tripping mechanism for overload protection and an electromechanical tripping mechanism for rapid short-circuit interruption. Its C-curve tripping characteristic makes it suitable for general power distribution circuits, lighting systems, control panels and equipment with moderate inrush currents.
With a rated current of 2 A, a three-pole configuration and a 10 kA rated short-circuit capacity at 230/400 V AC, the S203MC2-1 provides reliable protection for low-current three-phase circuits. Its compact modular construction enables straightforward installation on standard 35 mm DIN rails inside electrical distribution boards and industrial control panels.
The ABB S203MC2-1 automatically disconnects electrical circuits whenever overload or short-circuit conditions occur, helping protect wiring, connected equipment and personnel. Its current-limiting construction reduces fault energy and contributes to improved system reliability.
Its C-curve characteristic makes the breaker ideal for protecting lighting circuits, control systems, distribution boards and other electrical installations where moderate temporary current surges are expected during normal operation.
| Current | 2 A |
|---|---|
| Phase | Single Phase |
| Manufacturer | ABB |
| Series | System pro M compact S200M |
| Model | S203M-C2 |
| Commercial reference | S203MC2-1 |
| Product ID | 2CDS273001R0024 |
| EAN | 4016779550383 |
| Product type | Miniature circuit breaker |
| Number of poles | 3 |
| Number of protected poles | 3 |
| Rated current | 2 A |
| Tripping characteristic | C curve |
| Rated operational voltage | 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 service breaking capacity (Ics) | 7.5 kA |
| Rated insulation voltage | 440 V |
| Rated impulse withstand voltage | 4 kV |
| Protection rating | IP20 |
| Terminal type | Screw terminals |
| Mounting type | 35 mm DIN rail |
| Operating temperature | -25 to +55 °C |
| 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 S203MC2-1 protects three-phase electrical circuits against overloads and short circuits in residential, commercial and industrial applications.
The miniature circuit breaker has a rated current of 2 A.
A C-curve circuit breaker is suitable for circuits with moderate inrush currents, including lighting systems, control equipment and general electrical distribution.
The circuit breaker provides a rated short-circuit capacity of 10 kA at 230/400 V AC.
The S203MC2-1 is designed for installation on a standard 35 mm DIN rail inside electrical distribution boards and industrial control panels.
ABB System pro M compact S200M miniature circuit breakers are trusted worldwide by electrical contractors, panel builders and automation engineers for dependable circuit protection, high performance and long-term reliability.
● Service Agreements
Credit Accounts
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
● frequently asked questions
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
● latest blog
LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
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...