ABB S203P-D25NA System pro M compact S200P miniature circuit breaker with 3P+N configuration, 25 A rated current, D tripping characteristic and high breaking capacity for industrial and commercial circuit protection.
The ABB S203P-D25NA is a high-performance 3P+N miniature circuit breaker (MCB) from the ABB System pro M compact S200P series. Designed for reliable overload and short circuit protection, it provides dependable circuit protection for industrial distribution boards, machinery, commercial installations and OEM electrical control panels.
This miniature circuit breaker features a D tripping characteristic and a 25 A rated current, making it suitable for circuits with high inrush currents. The S203P-D25NA is particularly useful where loads such as motors, transformers and inductive equipment require robust short circuit protection without unnecessary nuisance tripping during normal start-up conditions.
With a 3P+N configuration and a high 25 kA breaking capacity, the S203P-D25NA offers professional-grade protection in demanding three-phase electrical systems. Its compact DIN rail mounted construction supports efficient installation in control cabinets, switchboards and distribution enclosures.
Miniature circuit breakers such as the ABB S203P-D25NA protect electrical installations by automatically disconnecting the circuit during overload or short circuit conditions. The thermal mechanism responds to sustained overloads, while the electromagnetic trip mechanism reacts rapidly to short circuit faults.
The D curve characteristic is designed for circuits where normal start-up currents may be significantly higher than the running current. This makes the S203P-D25NA well suited to motor circuits, transformers and industrial equipment where dependable protection and reduced nuisance tripping are both important.
| Current | 25 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | System pro M compact S200P |
| Model | S203P-D25NA |
| Product type | Miniature Circuit Breaker (MCB) |
| Product ID | 2CDS283103R0251 |
| Rated current | 25 A |
| Tripping characteristic | D |
| Number of poles | 3P+N |
| Rated voltage | 400 V AC |
| Rated insulation voltage | 440 V |
| Frequency | 50 / 60 Hz |
| Breaking capacity | Up to 25 kA |
| Current limiting class | 3 |
| Pollution degree | 3 |
| Overvoltage category | III |
| Protection rating | IP20 |
| Mounting type | DIN rail |
| Width | 4 modular spacings |
| Built-in depth | 69 mm |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2 |
| Dimensions (H × W × D) | approx. 88 × 70 × 69 mm |
The S203P-D25NA is used to protect three-phase electrical circuits against overloads and short circuits in industrial, commercial and OEM applications.
This miniature circuit breaker has a 25 A rated current.
A D curve MCB is designed for circuits with high inrush currents, making it suitable for loads such as motors, transformers and other inductive equipment.
The S203P-D25NA is a 3P+N device with three protected poles and a switched neutral.
Yes. The S203P-D25NA is designed for standard DIN rail mounting inside electrical panels, distribution boards and machine control cabinets.
ABB System pro M compact miniature circuit breakers are widely used by panel builders, electrical contractors and industrial engineers for dependable circuit protection, high fault performance and long-term reliability in 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...