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2CDS273061R0984 ABB S203M-C0.5UC MCB 10kA 3P Type C 0.5A
ABB S203M-C0.5UC is a 0.5 A three-pole Type C universal-current miniature circuit breaker with 10 kA short-circuit capacity for AC and DC circuit protection.
£285.86
Why Choose the ABB S203M-C0.5UC Miniature Circuit Breaker?
The ABB S203M-C0.5UC is a high-performance three-pole miniature circuit breaker (MCB) designed to provide reliable overcurrent and short-circuit protection in AC and DC electrical systems. As part of the ABB System pro M compact S200M UC series, it combines universal-current capability with a high breaking capacity for demanding industrial, control and traction-related applications.
Designed for both AC and DC circuits, the S203M-C0.5UC provides flexible protection where conventional AC-only miniature circuit breakers may not be suitable. Its Type C tripping characteristic is designed to tolerate moderate inrush currents while providing dependable protection against overloads and short circuits. The S200M UC range is compatible with ABB System pro M compact accessories, simplifying integration into modular electrical installations.
With a rated current of 0.5 A, three protected poles and a rated short-circuit capacity of 10 kA under specified IEC operating voltages, the S203M-C0.5UC is suited to low-current control, auxiliary, industrial and traction circuits. Its compact DIN-rail-mounted format allows straightforward installation within electrical distribution boards and control cabinets.
Key Advantages
- Universal-current MCB designed for AC and DC applications.
- 0.5 A rated current for protection of low-current electrical circuits.
- Three-pole configuration provides simultaneous protection across three conductors.
- Type C tripping characteristic suitable for circuits with moderate inrush currents.
- 10 kA short-circuit breaking capacity at specified IEC operating voltages.
- DIN rail mounting for straightforward integration into modular electrical installations.
Key Features
- ABB System pro M compact S200M UC series.
- 0.5 A rated current.
- Three-pole miniature circuit breaker.
- C characteristic thermal-magnetic tripping.
- Suitable for AC and DC circuit protection.
- 10 kA rated short-circuit capacity at 253/400 V AC and 440 V DC.
- Compliance with IEC/EN 60898-1 and IEC/EN 60947-2.
- Compact modular design for DIN rail mounting.
Reliable AC and DC Circuit Protection
Miniature circuit breakers such as the ABB S203M-C0.5UC protect electrical circuits against overload and short-circuit conditions. The thermal-magnetic operating mechanism automatically disconnects the circuit when current exceeds permitted limits, helping protect conductors and connected equipment from electrical damage.
The S200M UC series is specifically designed for universal-current applications, allowing use in both AC and DC installations. Its high short-circuit breaking capability, international standards compliance and compatibility with ABB System pro M compact accessories make it suitable for industrial control, electrical distribution and traction-related systems.
Typical Applications
- DC and AC electrical distribution circuits.
- Railway and traction electrical systems.
- Industrial control and automation panels.
- Low-current auxiliary and control circuits.
- Machinery and production equipment.
- Electrical cabinets and modular DIN rail assemblies.
Technical Specifications
| Series | S200M UC / System pro M compact |
|---|---|
| ABB order code | 2CDS273061R0984 |
| Product type | Miniature circuit breaker (MCB) |
| Rated current | 0.5 A |
| Number of poles | 3 |
| Tripping characteristic | Type C |
| Application | AC / DC circuit protection |
| Rated short-circuit capacity | 10 kA at 253/400 V AC and 440 V DC |
| Rated ultimate short-circuit breaking capacity | 25 kA at 220 V DC; 10 kA at 440 V AC / 440 V DC |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2 |
| Mounting type | DIN rail mounting |
| Protection rating | IP20 |
| Operating temperature | -25 to +55 °C |
| Electrical life | 20,000 cycles |
| Power loss | 3.9 W total; 1.29 W per pole at rated operating conditions |
| Weight | approx. 0.375 kg |
| EAN | 4013614435133 |
Frequently Asked Questions
What is the ABB S203M-C0.5UC used for?
The S203M-C0.5UC is a three-pole miniature circuit breaker designed to protect AC and DC electrical circuits against overloads and short circuits.
What is the rated current of the S203M-C0.5UC?
The circuit breaker has a rated current of 0.5 A, making it suitable for low-current control, auxiliary and protection circuits.
What is the breaking capacity of this MCB?
The S203M-C0.5UC provides a rated short-circuit capacity of 10 kA at specified IEC operating voltages, including 253/400 V AC and 440 V DC.
What does the Type C characteristic mean?
The Type C tripping characteristic allows the breaker to tolerate moderate short-duration inrush currents while still providing reliable overload and short-circuit protection.
Can the ABB S203M-C0.5UC be used on DC circuits?
Yes. The S203M-C0.5UC belongs to ABB's S200M UC universal-current range and is specifically designed for both AC and DC circuit protection applications.
Trusted Circuit Protection from ABB
ABB System pro M compact S200M UC miniature circuit breakers provide flexible AC and DC circuit protection for industrial, control, distribution and traction-related electrical installations, combining high breaking capacity with a compact modular design.
