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ABB S203-K25 MCB – S200 – 3P – K – 25A
ABB S203-K25 three-pole 25 A K curve miniature circuit breaker from the System pro M Compact S200 range for overload and short circuit protection in industrial and commercial electrical installations.
£70.37
Why Choose the ABB S203-K25 Miniature Circuit Breaker?
The ABB S203-K25 is a premium three-pole miniature circuit breaker (MCB) from the trusted ABB System pro M Compact S200 series. Designed to provide dependable protection against overloads and short circuits, it is ideally suited for commercial, industrial and OEM electrical installations where circuits with elevated inrush currents require reliable protection.
Featuring a K tripping characteristic, the S203-K25 is specifically developed for applications involving motors, transformers, solenoids and other inductive loads. Its precision thermal and electromagnetic trip mechanisms provide excellent overload protection while allowing higher starting currents without unnecessary tripping.
With a 25 A rated current, three protected poles and a 6 kA breaking capacity, the ABB S203-K25 delivers dependable circuit protection, compact DIN rail installation and full compatibility with ABB's extensive range of System pro M Compact accessories.
Key Advantages
- Premium three-pole miniature circuit breaker.
- 25 A rated current with K tripping characteristic.
- Designed for motors, transformers and inductive loads.
- 6 kA breaking capacity for dependable fault protection.
- Thermal overload and magnetic short circuit protection.
- Compatible with ABB System pro M Compact accessories.
Key Features
- ABB System pro M Compact S200 series.
- 25 A rated current.
- K tripping characteristic.
- Three-pole (3P) configuration.
- 6 kA rated short circuit breaking capacity.
- Current limiting design.
- DIN rail mounting.
- Failsafe bi-directional cylinder-lift screw terminals.
Reliable Protection for High Inrush Current Circuits
The ABB S203-K25 automatically disconnects electrical circuits during overload and short circuit conditions, helping to protect valuable equipment, minimise downtime and improve electrical safety. Its K characteristic makes it particularly suitable for applications where temporary high starting currents are expected.
Manufactured in accordance with IEC/EN 60898-1, IEC/EN 60947-2 and UL1077 standards, the S203-K25 provides dependable long-term performance, excellent electrical endurance and straightforward installation in distribution boards and industrial control panels.
Typical Applications
- Motor control circuits.
- Industrial machinery.
- Transformers.
- Automation control panels.
- Commercial and industrial distribution boards.
- OEM electrical equipment.
Technical Specifications
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| Certification | UL 1077 | |
|---|---|---|
| Phase | Three Phase | |
| Current | 25 A | |
| Poles | 3-pole | |
| Device Type | MCB | |
| Trip Curve | K curve | |
| Breaking Capacity | 6 kA | |
| Manufacturer | ABB | |
| Series | System pro M Compact S200 | |
| Model | S203-K25 | |
| Manufacturer Part Number | 2CDS253001R0517 | |
| Product type | Miniature circuit breaker (MCB) | |
| Rated current | 25 A | |
| Number of poles | 3P | |
| Tripping characteristic | K | |
| Rated operational voltage | Up to 440 V AC | |
| Rated frequency | 50 / 60 Hz | |
| Rated short circuit breaking capacity | 6 kA | |
| Protection rating | IP20 | |
| Mounting type | DIN rail | |
| Dimensions (H × W × D) | 88 × 52.5 × 69 mm | |
| Weight | Approx. 0.345 kg | |
| HS Code | 85362010 | |
| Country of Manufacture | Germany |
Frequently Asked Questions
What is the ABB S203-K25 used for?
The ABB S203-K25 protects three-phase electrical circuits against overloads and short circuits, particularly where motors and other inductive loads are installed.
What does the K tripping characteristic mean?
The K characteristic is designed for circuits with higher inrush currents, making it ideal for motors, transformers and similar inductive equipment.
How many poles does this circuit breaker have?
The ABB S203-K25 is a three-pole (3P) miniature circuit breaker.
What is the rated current?
This miniature circuit breaker has a 25 A rated current.
How is the ABB S203-K25 installed?
The breaker is designed for secure installation onto a standard DIN rail inside electrical distribution boards and industrial control panels.
Trusted by Electrical Professionals Worldwide
ABB System pro M Compact miniature circuit breakers are trusted worldwide by electrical contractors, panel builders and OEM manufacturers for dependable circuit protection, outstanding reliability and long service life.
