ABB S203D10 3-pole 10 A miniature circuit breaker with D curve tripping characteristic and 6 kA breaking capacity for overload and short-circuit protection.
£81.04
The ABB S203D10 is a premium 3-pole miniature circuit breaker (MCB) designed to provide dependable protection against overloads and short circuits in demanding commercial and industrial electrical installations. Part of the renowned ABB System pro M Compact S200 series, it combines advanced thermal-magnetic protection with current-limiting technology and a compact DIN rail design for reliable circuit protection.
Featuring a D curve tripping characteristic, the S203D10 is specifically engineered for circuits with very high inrush currents. It is ideal for protecting motors, transformers, compressors, welding equipment, solenoids and other inductive loads that experience significant start-up currents without causing nuisance tripping.
With a rated current of 10 A, a 3-pole configuration and a 6 kA rated short-circuit breaking capacity, the ABB S203D10 provides reliable protection for three-phase systems operating up to 400 V AC. Its compatibility with ABB auxiliary accessories allows simple integration into switchgear, distribution boards and industrial control panels.
The ABB S203D10 automatically disconnects electrical circuits during overload and short-circuit conditions, helping protect wiring and connected equipment from damage. Its thermal-magnetic operating mechanism delivers dependable protection while minimising downtime in demanding industrial environments.
Its D curve characteristic allows the breaker to withstand high temporary starting currents, typically between 10 and 20 times the rated current before instantaneous tripping. This makes it particularly suitable for motors, transformers, compressors, welding equipment and other highly inductive loads.
| Current | 10 A |
|---|---|
| Phase | Single Phase |
| Manufacturer | ABB |
| Series | System pro M Compact S200 |
| Model | S203-D10 |
| Product code | 2CDS253001R0101 |
| EAN | 4016779530903 |
| Product type | Miniature Circuit Breaker (MCB) |
| Rated current | 10 A |
| Number of poles | 3 |
| Number of protected poles | 3 |
| Trip characteristic | D Curve |
| Rated operational voltage | 230/400 V AC (440 V AC to IEC/EN 60947-2) |
| Maximum operational voltage | 440 V AC |
| Rated frequency | 50 / 60 Hz |
| Rated short-circuit breaking capacity (Icn) | 6 kA at 400 V AC |
| Rated ultimate short-circuit breaking capacity (Icu) | 20 kA at 230 V AC, 10 kA at 440 V AC |
| Rated service short-circuit breaking capacity (Ics) | 15 kA at 230 V AC |
| Rated insulation voltage (Ui) | 440 V |
| Rated impulse withstand voltage (Uimp) | 4 kV |
| Energy limiting class | 3 |
| Mechanical endurance | 20,000 operating cycles |
| Protection rating | IP20 |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2, UL 1077, CSA 22.2 No. 235 |
| Mounting type | DIN rail |
| Dimensions (H × W × D) | approximately 88 × 52.5 × 69 mm |
| Weight | approximately 0.375 kg |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
The ABB S203D10 protects three-phase electrical circuits against overloads and short circuits, particularly where equipment produces high inrush currents.
A D curve breaker permits very high temporary inrush currents before instantaneous tripping, making it ideal for motors, transformers, compressors and welding equipment.
The ABB S203D10 is a 3-pole miniature circuit breaker for protecting three-phase electrical systems.
The ABB S203D10 has a 10 amp current rating.
The breaker mounts directly onto a standard DIN rail inside distribution boards, switchgear assemblies and industrial control panels.
ABB System pro M Compact miniature circuit breakers are trusted worldwide by electrical contractors, panel builders and industrial engineers for delivering dependable circuit protection, robust construction and long-term reliability across demanding electrical installations.
● 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...