ABB S203C3 3-pole 3 A miniature circuit breaker with C curve tripping characteristic and 6 kA breaking capacity for overload and short-circuit protection.
£84.70
The ABB S203C3 is a premium 3-pole miniature circuit breaker (MCB) engineered to provide reliable protection against overloads and short circuits in residential, commercial and industrial electrical installations. As part of the trusted ABB System pro M Compact S200 series, it combines dependable thermal-magnetic protection with a compact design and long service life.
Featuring a C curve tripping characteristic, the S203C3 is ideal for circuits with moderate inrush currents, making it suitable for control equipment, transformers, small motors, power supplies, HVAC systems and general-purpose industrial applications. Its current-limiting construction helps reduce fault energy while providing rapid disconnection during short-circuit conditions.
With a rated current of 3 A, a 3-pole configuration and a 6 kA short-circuit breaking capacity, the ABB S203C3 is designed for three-phase electrical systems operating at up to 400 V AC. Its compact DIN rail mounting format enables fast installation into distribution boards, switchgear and industrial control panels.
The ABB S203C3 automatically disconnects electrical circuits when overload or short-circuit conditions occur, helping to protect wiring, switchgear and connected equipment from electrical damage. Its thermal-magnetic mechanism delivers dependable protection whilst reducing downtime and improving installation safety.
Its C curve characteristic makes the breaker particularly suitable for small motors, transformers, industrial control systems, automation equipment and other circuits where moderate temporary inrush currents are expected.
| Current | 3 A |
|---|---|
| Phase | Single Phase |
| Manufacturer | ABB |
| Series | System pro M Compact S200 |
| Model | S203-C3 |
| Product code | 2CDS253001R0034 |
| EAN | 4016779523455 |
| Product type | Miniature Circuit Breaker (MCB) |
| Rated current | 3 A |
| Number of poles | 3 |
| Number of protected poles | 3 |
| Trip characteristic | C Curve |
| Rated operational voltage | 400 V AC |
| Maximum operational voltage | 440 V AC |
| Rated frequency | 50 / 60 Hz |
| Rated short-circuit breaking capacity (Icn) | 6 kA |
| Ultimate short-circuit breaking capacity (Icu) | 20 kA at 230 V AC, 10 kA at 400/440 V AC |
| Rated insulation voltage | 440 V |
| Impulse withstand voltage | 4 kV |
| Energy limiting class | 3 |
| Protection rating | IP20 |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2, UL 1077 |
| Mounting type | DIN rail |
| Dimensions (H × W × D) | approx. 88 × 52.5 × 69 mm |
| Weight | approx. 0.375 kg |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
The ABB S203C3 protects low-current three-phase electrical circuits against overloads and short circuits in commercial, industrial and residential installations.
A C curve breaker is designed for circuits with moderate inrush currents, making it suitable for motors, transformers, power supplies and industrial control equipment.
The S203C3 is a 3-pole miniature circuit breaker for protecting three-phase electrical circuits.
The ABB S203C3 has a 3 amp current rating.
The breaker mounts directly onto a standard DIN rail inside electrical distribution boards, switchgear assemblies and industrial control panels.
ABB System pro M Compact miniature circuit breakers are trusted worldwide by electrical contractors, OEM machine builders and panel manufacturers for providing dependable circuit protection, robust construction and long-term operational 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...