Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
ABB S203-K2 MCB – S200 – 3P – K – 2A
ABB S203-K2 three-pole miniature circuit breaker with a 2 A current rating and K tripping characteristic for motor control and industrial electrical protection.
£71.10
Why Choose the ABB S203-K2 Miniature Circuit Breaker?
The ABB S203-K2 is a premium three-pole miniature circuit breaker (MCB) from the dependable ABB System pro M Compact S200 series. Featuring a 2 A current rating and a K tripping characteristic, it is specifically designed to provide reliable protection for circuits supplying motors, transformers and inductive loads with higher inrush currents. It delivers dependable overload and short circuit protection for industrial, commercial and OEM electrical installations.
Manufactured to ABB's exacting quality standards, the S203-K2 incorporates thermal overload protection together with electromagnetic short circuit protection. Its compact DIN rail mounted design allows quick installation within distribution boards, switchgear and industrial control panels while providing excellent long-term reliability.
Designed in accordance with recognised international standards, the ABB S203-K2 is ideal for machine builders, electrical contractors and panel manufacturers seeking dependable protection for motor control circuits and other demanding applications.
Key Advantages
- Three-pole miniature circuit breaker for three-phase installations.
- 2 A rated current for low-current industrial applications.
- K tripping characteristic designed for motor and inductive load protection.
- Provides reliable overload and short circuit protection.
- Compact DIN rail mounting for simple installation.
- Compatible with ABB System pro M Compact accessories.
Key Features
- ABB System pro M Compact S200 series.
- Model: S203-K2.
- 2 A rated current.
- Three protected poles (3P).
- K curve tripping characteristic.
- Thermal and electromagnetic trip mechanisms.
- 6 kA breaking capacity to IEC/EN 60898-1.
- DIN rail mounting for distribution boards and control panels.
Reliable Protection for Motor Control Circuits
The ABB S203-K2 is designed to disconnect electrical circuits safely during overloads and short circuits while allowing the temporary high starting currents associated with motors, transformers and inductive equipment. Its K characteristic provides enhanced protection for motor control applications by reducing nuisance tripping during normal start-up conditions.
As part of ABB's proven System pro M Compact range, the S203-K2 offers reliable operation, simple installation and compatibility with a comprehensive range of auxiliary contacts, shunt trips and signalling accessories for complete control panel solutions.
Typical Applications
- Motor control circuits.
- Industrial machinery.
- OEM equipment.
- Transformer protection.
- Industrial control panels.
- Commercial and industrial electrical distribution.
Technical Specifications
Tick the specs you need, then view products that match.
| Certification | UL 1077 | |
|---|---|---|
| Phase | Three Phase | |
| Current | 2 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-K2 | |
| Product ID | 2CDS253001R0277 | |
| Product type | Miniature circuit breaker (MCB) | |
| Rated current | 2 A | |
| Number of poles | 3 | |
| Tripping characteristic | K | |
| Rated operational voltage | Up to 440 V AC | |
| Frequency | 50 / 60 Hz | |
| Breaking capacity | 6 kA | |
| Protection rating | IP20 | |
| Mounting type | DIN rail | |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2, UL 1077 | |
| Dimensions (H × W × D) | Approx. 88 × 52.5 × 69 mm | |
| Weight | Approx. 0.34 kg | |
| HS Code | 85362010 | |
| Country of Manufacture | Germany |
Frequently Asked Questions
What is the ABB S203-K2 used for?
The ABB S203-K2 protects three-phase electrical circuits supplying motors, transformers and other inductive loads against overloads and short circuits.
What does the K tripping characteristic mean?
The K curve is specifically designed for motor control circuits, allowing higher starting currents while still providing dependable protection against overloads and short circuits.
How many poles does the S203-K2 have?
This model is a three-pole (3P) miniature circuit breaker designed for three-phase electrical systems.
How is the circuit breaker installed?
The ABB S203-K2 clips directly onto a standard DIN rail inside distribution boards, switchgear and industrial control panels.
Which standards does the ABB S203-K2 comply with?
The circuit breaker complies with IEC/EN 60898-1, IEC/EN 60947-2 and UL 1077 standards for dependable overcurrent protection.
Trusted by Electrical Professionals Worldwide
ABB System pro M Compact miniature circuit breakers are trusted by electrical engineers, machine builders and industrial panel manufacturers for delivering dependable circuit protection across demanding industrial and commercial applications.
