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ABB S203M-C20 MCB – S200M – 3P – C – 20A
ABB S203M-C20 miniature circuit breaker from the System pro M Compact S200M series, 3-pole, 20 A, Type C, 10 kA breaking capacity for reliable three-phase circuit protection.
£54.87
Why Choose the ABB S203M-C20 Miniature Circuit Breaker?
The ABB S203M-C20 is a reliable 3-pole miniature circuit breaker (MCB) designed to protect electrical circuits against overloads and short circuits in commercial, industrial and OEM installations. As part of the trusted ABB System pro M Compact S200M series, it provides compact, high-performance circuit protection for distribution boards, machinery panels and electrical control systems.
Featuring a Type C tripping characteristic, the S203M-C20 is suitable for circuits with moderate inrush currents, including motors, transformers, HVAC equipment, lighting circuits, automation systems and three-phase power distribution. Its thermal and magnetic trip mechanisms provide dependable protection while helping reduce unnecessary tripping during normal equipment start-up.
With a 20 A rated current, 3-pole configuration and 10 kA breaking capacity, the ABB S203M-C20 is ideal for professional electrical installations where reliable protection, ABB build quality and standards-compliant performance are required.
Key Advantages
- Reliable 3-pole miniature circuit breaker for industrial and commercial installations.
- 20 A rated current suitable for three-phase power and control circuits.
- Type C tripping characteristic for moderate inrush current applications.
- 10 kA breaking capacity for dependable short-circuit protection.
- Compact DIN rail mounting for quick panel installation.
- Compatible with ABB System pro M Compact modular accessories.
Key Features
- ABB System pro M Compact S200M series.
- 3-pole miniature circuit breaker.
- 20 A rated current.
- Type C tripping curve.
- 10 kA rated short-circuit breaking capacity.
- Delayed thermal tripping mechanism for overload protection.
- Electromechanical tripping mechanism for short-circuit protection.
- DIN rail mounted design for distribution boards and control panels.
Reliable Protection for Three-Phase Electrical Systems
The ABB S203M-C20 automatically disconnects electrical circuits when overload or short-circuit conditions occur. This helps protect cables, switchgear, control equipment and connected devices from damage caused by excessive current.
Its Type C characteristic makes it suitable for equipment that may draw a temporary inrush current during start-up. The 3-pole design provides simultaneous protection and disconnection across three conductors, making it a practical choice for industrial panels, machinery and commercial distribution systems.
Typical Applications
- Industrial control panels.
- Three-phase power distribution circuits.
- Automation and machine control systems.
- Motor and transformer circuits.
- HVAC and building services equipment.
- OEM machinery and electrical equipment.
Technical Specifications
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| Phase | Three Phase | |
|---|---|---|
| Current | 20 A | |
| Poles | 3-pole | |
| Device Type | MCB | |
| Trip Curve | C curve | |
| Breaking Capacity | 10 kA | |
| Manufacturer | ABB | |
| Series | System pro M Compact S200M | |
| Model | S203M-C20 | |
| Manufacturer part number | 2CDS273001R0204 | |
| EAN | 4016779550468 | |
| Product type | Miniature Circuit Breaker (MCB) | |
| Rated current | 20 A | |
| Tripping characteristic | Type C | |
| Number of poles | 3P | |
| Rated operational voltage | Up to 440 V AC | |
| Rated DC voltage | Up to 125 V DC | |
| Frequency | 50 / 60 Hz | |
| Breaking capacity | 10 kA | |
| Protection rating | IP20 | |
| Mounting type | DIN rail | |
| Dimensions (H × W × D) | approx. 88 × 52.5 × 69 mm | |
| Weight | approx. 0.345 kg | |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2, UL 1077 | |
| HS Code | 85362010 | |
| Country of Manufacture | Germany |
Frequently Asked Questions
What is the ABB S203M-C20 used for?
The ABB S203M-C20 is used to protect electrical circuits against overloads and short circuits in industrial, commercial and automation applications.
What current rating does the S203M-C20 have?
The S203M-C20 has a rated current of 20 A.
What does Type C mean on this circuit breaker?
Type C means the breaker is designed for circuits with moderate inrush currents, such as motors, transformers, automation equipment and general power circuits.
How many poles does the ABB S203M-C20 have?
This model is a 3-pole miniature circuit breaker, providing protection and disconnection across three conductors.
What is the breaking capacity of the S203M-C20?
The ABB S203M-C20 has a rated breaking capacity of 10 kA.
Trusted by Electrical Professionals Worldwide
ABB System pro M Compact miniature circuit breakers are trusted by electricians, panel builders and automation engineers for reliable protection, compact installation and long-term performance in demanding electrical systems.
