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ABB S203M-K2 MCB – 3P – K Curve – 2A – 10kA
ABB S203M-K2 3-pole 2A K curve miniature circuit breaker from the System pro M compact S200M range for overload and short circuit protection in industrial and commercial electrical installations.
£77.03
Why Choose the ABB S203M-K2 Miniature Circuit Breaker?
The ABB S203M-K2 is a robust 3-pole miniature circuit breaker (MCB) from the ABB System pro M compact S200M series. It is designed to provide dependable overload and short circuit protection for commercial, industrial and OEM electrical installations where reliable circuit protection is essential.
Featuring a K tripping characteristic, the S203M-K2 is particularly suited to circuits with higher inrush currents, including transformers, motors, control circuits and inductive loads. Its advanced current limiting design helps minimise fault energy, protecting connected equipment while improving installation reliability.
With a 2 A rated current, 3-pole configuration and 10 kA breaking capacity to IEC/EN 60898-1, the ABB S203M-K2 provides dependable protection for industrial control panels, machinery and power distribution systems. It also complies with IEC/EN 60947-2 for professional industrial applications.
Key Advantages
- Reliable 3-pole miniature circuit breaker for industrial applications.
- 2 A rated current with K tripping characteristic.
- Current limiting technology helps reduce fault energy.
- 10 kA breaking capacity for dependable protection.
- Suitable for commercial, industrial and OEM machinery.
- Compatible with ABB auxiliary contacts and modular accessories.
Key Features
- ABB System pro M compact S200M series.
- 3-pole (3P) configuration.
- 2 A rated current.
- K tripping characteristic.
- 10 kA rated breaking capacity.
- Thermal overload and magnetic short circuit protection.
- Current limiting class 3 performance.
- DIN rail mounting with contact position indication.
Reliable Circuit Protection for Industrial Installations
The ABB S203M-K2 combines thermal overload protection with rapid magnetic short circuit protection to safeguard electrical circuits and connected equipment. Its current limiting technology helps minimise thermal and mechanical stress during fault conditions, improving overall system reliability.
The K curve characteristic is ideal for circuits with elevated inrush currents, making this miniature circuit breaker suitable for transformers, motors, machine control systems and industrial automation equipment.
Typical Applications
- Industrial control panels.
- Machine building and OEM equipment.
- Transformer protection.
- Motor control circuits.
- Commercial electrical installations.
- Industrial power distribution systems.
Technical Specifications
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| Phase | Three Phase | |
|---|---|---|
| Current | 2 A | |
| Poles | 3-pole | |
| Device Type | MCB | |
| Trip Curve | K curve | |
| Breaking Capacity | 10 kA | |
| Manufacturer | ABB | |
| Series | System pro M compact S200M | |
| Model | S203M-K2 | |
| Manufacturer Part Number | 2CDS273001R0277 | |
| EAN | 4016779601108 | |
| Product type | Miniature Circuit Breaker (MCB) | |
| Rated current | 2 A | |
| Number of poles | 3P | |
| Tripping characteristic | K | |
| Rated operational voltage | Up to 440 V AC | |
| Frequency | 50 / 60 Hz | |
| Breaking capacity | 10 kA (IEC/EN 60898-1) | |
| Ultimate breaking capacity (Icu) | 15 kA at 400 V AC | |
| Protection rating | IP20 | |
| Mounting type | DIN rail | |
| Mechanical endurance | 20,000 operating cycles | |
| Dimensions (H × W × D) | approx. 88 × 52.5 × 69 mm | |
| Weight | approx. 0.375 kg | |
| HS Code | 85362010 | |
| Country of Manufacture | Germany |
Frequently Asked Questions
What is the ABB S203M-K2 used for?
The ABB S203M-K2 protects electrical circuits against overloads and short circuits in industrial, commercial and OEM installations.
What is the rated current of the S203M-K2?
This miniature circuit breaker has a 2 A rated current.
What does the K tripping characteristic mean?
The K curve is designed for circuits with higher inrush currents, making it suitable for motors, transformers and inductive loads.
How many poles does this circuit breaker have?
The ABB S203M-K2 is a 3-pole miniature circuit breaker suitable for protecting three-phase electrical systems.
Which standards does the S203M-K2 comply with?
The circuit breaker complies with IEC/EN 60898-1 and IEC/EN 60947-2, making it suitable for residential, commercial and industrial applications.
Trusted by Electrical Professionals Worldwide
ABB System pro M compact S200M miniature circuit breakers are trusted by panel builders, OEM manufacturers and electrical engineers for reliable protection, long service life and proven industrial performance.
