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ABB S203-D8 MCB – S200 – 3P – D – 8A
ABB S203-D8 three pole 8 A D curve miniature circuit breaker with 6 kA breaking capacity for industrial, commercial and OEM electrical protection.
£44.53
Why Choose the ABB S203-D8 Miniature Circuit Breaker?
The ABB S203-D8 is a high performance three-pole miniature circuit breaker (MCB) from the trusted ABB System pro M Compact S200 series. Designed to provide dependable overload and short circuit protection, it is suitable for commercial, industrial and OEM electrical installations where reliable circuit protection is essential.
Featuring a D tripping characteristic, the S203-D8 is specifically designed for circuits with high inrush currents, making it ideal for protecting motors, transformers, solenoids and other inductive loads. Its thermal and magnetic trip mechanisms provide accurate protection while reducing nuisance tripping during equipment start-up.
With a 8 A rated current, three-pole configuration and a 6 kA short circuit breaking capacity, this DIN rail mounted circuit breaker offers dependable performance, simple installation and full compliance with recognised international electrical standards.
Key Advantages
- Compact three-pole miniature circuit breaker for industrial and commercial applications.
- D curve tripping characteristic for high inrush current loads.
- 8 A rated current for dependable circuit protection.
- 6 kA breaking capacity for effective fault interruption.
- Thermal and magnetic trip mechanisms provide reliable overload and short circuit protection.
- DIN rail mounting for fast installation within electrical distribution boards.
Key Features
- ABB System pro M Compact S200 series.
- Three-pole (3P) configuration.
- 8 A rated current.
- D tripping characteristic.
- 6 kA rated short circuit breaking capacity.
- Suitable for 50 / 60 Hz AC systems.
- Failsafe bi-directional screw terminals for secure wiring.
- Compatible with ABB S200 auxiliary contacts and accessories.
Reliable Circuit Protection for Industrial Installations
The ABB S203-D8 protects electrical circuits by combining a delayed thermal trip for overload protection with an instantaneous magnetic trip for short circuit protection. This ensures connected equipment remains protected while maintaining reliable operation under demanding electrical conditions.
Its D characteristic makes the device particularly suitable for applications where motors, transformers and other inductive equipment generate high starting currents. The compact design enables straightforward installation within modern switchboards and control panels.
Typical Applications
- Motor protection circuits.
- Industrial machinery.
- Control panels and switchboards.
- Commercial electrical installations.
- OEM equipment and automation systems.
- Transformers and inductive loads with high starting currents.
Technical Specifications
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| Phase | Three Phase | |
|---|---|---|
| Current | 8 A | |
| Poles | 3-pole | |
| Device Type | MCB | |
| Trip Curve | D curve | |
| Breaking Capacity | 6 kA | |
| Manufacturer | ABB | |
| Series | System pro M Compact S200 | |
| Model | S203-D8 | |
| Product type | Miniature Circuit Breaker (MCB) | |
| Rated current | 8 A | |
| Number of poles | 3 | |
| Tripping characteristic | D | |
| Rated operational voltage | 400 V AC | |
| Maximum operational voltage | 440 V AC | |
| Rated frequency | 50 / 60 Hz | |
| Breaking capacity | 6 kA | |
| Protection rating | IP20 | |
| Mounting type | DIN rail | |
| Terminal type | Failsafe bi-directional screw terminals | |
| Dimensions (H × W × D) | 88 × 52.5 × 69 mm | |
| Weight | approx. 0.336 kg | |
| HS Code | 85362010 | |
| Country of Manufacture | Germany |
Frequently Asked Questions
What is the ABB S203-D8 used for?
The S203-D8 protects electrical circuits against overloads and short circuits in industrial, commercial and OEM installations.
What does the D tripping characteristic mean?
A D curve circuit breaker is designed for circuits with high inrush currents, making it suitable for motors, transformers and other inductive equipment.
How many poles does the ABB S203-D8 have?
This model is a three-pole (3P) miniature circuit breaker suitable for three-phase electrical systems.
What is the breaking capacity of this MCB?
The ABB S203-D8 provides a rated short circuit breaking capacity of 6 kA.
How is the ABB S203-D8 installed?
The circuit breaker is designed for installation onto a standard DIN rail inside electrical distribution boards and industrial control panels.
Trusted by Electrical Professionals Worldwide
ABB System pro M Compact miniature circuit breakers are trusted by electrical contractors, panel builders and industrial engineers for dependable circuit protection, long service life and compliance with international standards.
