ABB S203C100 3-pole 100 A miniature circuit breaker with C curve tripping characteristic and 6 kA breaking capacity for overload and short-circuit protection.
£202.56
The ABB S203C100 is a high-performance 3-pole miniature circuit breaker (MCB) designed to provide dependable protection against overloads and short circuits in commercial, industrial and heavy-duty electrical installations. As part of the trusted ABB System pro M Compact S200 80-100A series, it combines robust construction with reliable thermal-magnetic protection for demanding power distribution applications.
Featuring a C curve tripping characteristic, the S203C100 is ideal for circuits with moderate inrush currents, making it suitable for motors, pumps, compressors, HVAC equipment and general industrial power distribution. Its current-limiting design helps minimise fault energy while ensuring fast and reliable protection during overload and short-circuit conditions.
With a rated current of 100 A, a 3-pole configuration and a 6 kA short-circuit breaking capacity, the ABB S203C100 is designed for three-phase systems operating up to 400 V AC. Its DIN rail mounting format allows straightforward installation within distribution boards, switchgear assemblies and industrial control panels.
The ABB S203C100 automatically disconnects electrical circuits when overload or short-circuit conditions occur, helping protect wiring, switchgear and connected equipment from electrical faults. Its thermal-magnetic mechanism ensures dependable operation while reducing downtime and improving system safety.
The C curve characteristic makes the breaker ideal for applications with moderate starting currents, making it well suited to industrial motors, HVAC equipment, commercial distribution systems and OEM machinery.
| Current | 100 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | System pro M Compact S200 80-100A |
| Model | S203-C100 |
| Product code | 2CDS253001R0824 |
| EAN | 4016779916288 |
| Product type | Miniature Circuit Breaker (MCB) |
| Rated current | 100 A |
| Number of 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 | 6 kA |
| Rated insulation voltage | 440 V |
| Rated impulse withstand voltage | 4 kV |
| Protection rating | IP20 |
| Mechanical endurance | 20,000 operating cycles |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2 |
| Mounting type | DIN rail |
| Dimensions (H × W × D) | approx. 88 × 52.5 × 69 mm |
| Weight | approx. 0.36 kg |
| HS Code | 85362090 |
| Country of Manufacture | Germany |
The ABB S203C100 protects three-phase electrical circuits against overloads and short circuits in industrial, commercial and heavy-duty electrical installations.
A C curve breaker is designed for circuits with moderate inrush currents, making it suitable for motors, pumps, compressors, HVAC equipment and general industrial applications.
The S203C100 is a 3-pole miniature circuit breaker for protecting three-phase electrical circuits.
The ABB S203C100 has a 100 amp current rating.
The breaker is designed for installation onto a standard DIN rail within distribution boards, switchgear assemblies and industrial control panels.
ABB System pro M Compact miniature circuit breakers are trusted by electrical contractors, panel builders and industrial engineers worldwide for delivering reliable protection, robust construction and long-term performance in demanding electrical installations.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...