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ABB S203-C40 MCB – S200 – 3P – C – 40A
ABB S203-C40 three-pole miniature circuit breaker with a 40 A current rating and C tripping characteristic for commercial and industrial electrical protection.
This product has been superseded
A direct replacement is available below.
Replacement product
S203-C40 Miniature Circuit Breaker - 3P - C - 40 A
SKU: S203C40
£43.55 ex VAT
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Why Choose the ABB S203-C40 Miniature Circuit Breaker?
The ABB S203-C40 is a premium three-pole miniature circuit breaker (MCB) from the trusted ABB System pro M Compact S200 series. Featuring a 40 A current rating and a C tripping characteristic, it is designed to provide dependable protection against overloads and short circuits in commercial, industrial and OEM electrical installations. The C curve is ideal for protecting circuits with moderate inrush currents, making it suitable for motors, HVAC equipment, lighting circuits and general power distribution.
Manufactured to ABB's renowned engineering standards, the S203-C40 combines thermal overload protection with fast electromagnetic short circuit protection. Its compact DIN rail mounted design enables straightforward installation within distribution boards, switchgear and industrial control panels while delivering outstanding long-term reliability.
Designed in accordance with internationally recognised standards, the ABB S203-C40 is widely specified by electrical contractors, panel builders and industrial automation engineers requiring dependable circuit protection for three-phase installations.
Key Advantages
- Three-pole miniature circuit breaker for three-phase electrical systems.
- 40 A rated current for commercial and industrial power distribution.
- C tripping characteristic for circuits with moderate inrush currents.
- Reliable overload and short circuit protection.
- Compact DIN rail mounting for quick installation.
- Compatible with ABB System pro M Compact accessories.
Key Features
- ABB System pro M Compact S200 series.
- Model: S203-C40.
- 40 A rated current.
- Three protected poles (3P).
- C curve tripping characteristic.
- Thermal and electromagnetic trip mechanisms.
- 6 kA rated breaking capacity to IEC/EN 60898-1.
- DIN rail mounting for distribution boards and industrial control panels.
Reliable Protection for Commercial and Industrial Installations
The ABB S203-C40 safely disconnects electrical circuits during overloads and short circuits, protecting wiring, equipment and connected devices from damage. Its C characteristic makes it particularly suitable for circuits supplying motors, HVAC systems, pumps, lighting and general industrial equipment with moderate starting currents.
As part of ABB's proven System pro M Compact range, the S203-C40 provides dependable performance, simple installation and compatibility with a comprehensive range of auxiliary contacts, shunt trips and signalling accessories for complete electrical distribution solutions.
Typical Applications
- Commercial electrical distribution.
- Industrial control panels.
- HVAC systems.
- Motor and pump circuits.
- OEM machinery.
- General industrial power distribution.
Technical Specifications
Tick the specs you need, then view products that match.
| Certification | UL 1077 | |
|---|---|---|
| Current | 40 A | |
| Phase | Three Phase | |
| Poles | 3-pole | |
| Device Type | MCB | |
| Trip Curve | C curve | |
| Breaking Capacity | 6 kA | |
| Manufacturer | ABB | |
| Series | System pro M Compact S200 | |
| Model | S203-C40 | |
| Product ID | 2CDS253001R0404 | |
| Product type | Miniature circuit breaker (MCB) | |
| Rated current | 40 A | |
| Number of poles | 3 | |
| Tripping characteristic | C | |
| Rated operational voltage | 230/400 V AC | |
| Rated insulation voltage | 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. 0.38 kg |
Frequently Asked Questions
What is the ABB S203-C40 used for?
The ABB S203-C40 protects three-phase electrical circuits against overloads and short circuits in commercial, industrial and OEM installations.
What does the C tripping characteristic mean?
The C curve is designed for circuits with moderate inrush currents, making it suitable for motors, lighting, HVAC equipment and general-purpose power distribution.
How many poles does the S203-C40 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-C40 clips directly onto a standard DIN rail within switchboards, distribution boards and industrial control panels.
Which standards does the ABB S203-C40 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 worldwide by electrical engineers, panel builders and OEM machine manufacturers for dependable overcurrent protection across commercial and industrial electrical installations.
