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S203-C3 Miniature Circuit Breaker – 3P – C – 3 A
ABB S203C3 3-pole 3 A miniature circuit breaker with C curve tripping characteristic and 6 kA breaking capacity for overload and short-circuit protection.
£46.59
Why Choose the ABB S203C3 Miniature Circuit Breaker?
The ABB S203C3 is a premium 3-pole miniature circuit breaker (MCB) engineered to provide reliable protection against overloads and short circuits in residential, commercial and industrial electrical installations. As part of the trusted ABB System pro M Compact S200 series, it combines dependable thermal-magnetic protection with a compact design and long service life.
Featuring a C curve tripping characteristic, the S203C3 is ideal for circuits with moderate inrush currents, making it suitable for control equipment, transformers, small motors, power supplies, HVAC systems and general-purpose industrial applications. Its current-limiting construction helps reduce fault energy while providing rapid disconnection during short-circuit conditions.
With a rated current of 3 A, a 3-pole configuration and a 6 kA short-circuit breaking capacity, the ABB S203C3 is designed for three-phase electrical systems operating at up to 400 V AC. Its compact DIN rail mounting format enables fast installation into distribution boards, switchgear and industrial control panels.
Key Advantages
- Reliable 3-pole miniature circuit breaker for overload and short-circuit protection.
- 3 A rated current for low-current three-phase applications.
- C curve tripping characteristic suitable for moderate inrush current loads.
- 6 kA breaking capacity for dependable fault protection.
- Current-limiting technology helps minimise fault energy.
- Compact DIN rail mounting for quick installation.
Key Features
- ABB System pro M Compact S200 series.
- Model S203-C3.
- 3 A rated current.
- 3-pole configuration.
- C trip characteristic.
- 400 V AC rated operational voltage.
- 6 kA rated short-circuit breaking capacity.
- Thermal and electromagnetic tripping mechanisms.
- Current-limiting operation.
- Bottom-mounted auxiliary contact compatibility.
- Clear red/green contact position indication.
- DIN rail mounting.
Reliable Protection for Low-Current Three-Phase Systems
The ABB S203C3 automatically disconnects electrical circuits when overload or short-circuit conditions occur, helping to protect wiring, switchgear and connected equipment from electrical damage. Its thermal-magnetic mechanism delivers dependable protection whilst reducing downtime and improving installation safety.
Its C curve characteristic makes the breaker particularly suitable for small motors, transformers, industrial control systems, automation equipment and other circuits where moderate temporary inrush currents are expected.
Typical Applications
- Industrial control panels.
- Automation systems.
- Small motors and transformers.
- Power supplies.
- Commercial distribution boards.
- OEM machinery.
- HVAC control circuits.
Technical Specifications
Tick the specs you need, then view products that match.
| Breaking Capacity | 6 kA | |
|---|---|---|
| Phase | Three Phase | |
| Current | 3 A | |
| Poles | 3-pole | |
| Device Type | MCB | |
| Trip Curve | C curve | |
| Manufacturer | ABB | |
| Series | System pro M Compact S200 | |
| Model | S203-C3 | |
| Product code | 2CDS253001R0034 | |
| EAN | 4016779523455 | |
| Product type | Miniature Circuit Breaker (MCB) | |
| Rated current | 3 A | |
| Number of poles | 3 | |
| Number of protected poles | 3 | |
| Trip characteristic | C Curve | |
| Rated operational voltage | 400 V AC | |
| Maximum operational voltage | 440 V AC | |
| Rated frequency | 50 / 60 Hz | |
| Rated short-circuit breaking capacity (Icn) | 6 kA | |
| Ultimate short-circuit breaking capacity (Icu) | 20 kA at 230 V AC, 10 kA at 400/440 V AC | |
| Rated insulation voltage | 440 V | |
| Impulse withstand voltage | 4 kV | |
| Energy limiting class | 3 | |
| Protection rating | IP20 | |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2, UL 1077 | |
| Mounting type | DIN rail | |
| 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 S203C3 used for?
The ABB S203C3 protects low-current three-phase electrical circuits against overloads and short circuits in commercial, industrial and residential installations.
What does the C curve characteristic mean?
A C curve breaker is designed for circuits with moderate inrush currents, making it suitable for motors, transformers, power supplies and industrial control equipment.
How many poles does the ABB S203C3 have?
The S203C3 is a 3-pole miniature circuit breaker for protecting three-phase electrical circuits.
What is the rated current?
The ABB S203C3 has a 3 amp current rating.
How is the breaker installed?
The breaker mounts directly onto a standard DIN rail inside electrical distribution boards, switchgear assemblies and industrial control panels.
Trusted by Electrical Professionals Worldwide
ABB System pro M Compact miniature circuit breakers are trusted worldwide by electrical contractors, OEM machine builders and panel manufacturers for providing dependable circuit protection, robust construction and long-term operational reliability.
