ABB S203C16 3-pole 16 A miniature circuit breaker with C curve tripping characteristic and 6 kA breaking capacity for overload and short-circuit protection.
£77.05
The ABB S203C16 is a premium 3-pole miniature circuit breaker (MCB) designed to provide reliable protection against overloads and short circuits in commercial, industrial and residential electrical installations. As part of the trusted ABB System pro M Compact S200 series, it delivers dependable circuit protection, robust construction and long service life for modern electrical distribution systems.
Featuring a C curve tripping characteristic, the S203C16 is ideal for circuits with moderate inrush currents, making it suitable for motors, pumps, compressors, HVAC equipment and general-purpose power distribution. Its thermal-magnetic tripping mechanism combines delayed overload protection with rapid short-circuit interruption for maximum safety and equipment protection.
With a rated current of 16 A, a 3-pole configuration and a 6 kA short-circuit breaking capacity, the ABB S203C16 is designed for three-phase systems operating at up to 400 V AC. Its compact DIN rail mounting format allows quick installation within distribution boards, switchgear and industrial control panels.
The ABB S203C16 automatically disconnects electrical circuits when overload or short-circuit conditions occur, helping protect wiring, switchgear and connected equipment from electrical faults. Its thermal-magnetic design delivers dependable performance while reducing downtime and improving electrical safety.
The C curve characteristic makes the breaker particularly suitable for applications with moderate starting currents, including industrial motors, pumps, HVAC systems, commercial distribution circuits and OEM machinery. Its compact design and wide range of compatible accessories make it a versatile choice for modern installations.
| Current | 16 A |
|---|---|
| Phase | Single Phase |
| Manufacturer | ABB |
| Series | System pro M Compact S200 |
| Model | S203-C16 |
| Product code | 2CDS253001R0164 |
| EAN | 4016779468008 |
| Product type | Miniature Circuit Breaker (MCB) |
| Rated current | 16 A |
| Number of poles | 3 |
| Trip characteristic | C Curve |
| Rated operational voltage | 230/400 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 |
| Impulse withstand voltage | 4 kV |
| Protection rating | IP20 |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2, UL1077 |
| 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 |
The ABB S203C16 protects three-phase electrical circuits against overloads and short circuits in residential, commercial and industrial 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 S203C16 is a 3-pole miniature circuit breaker designed to protect three-phase electrical circuits.
The ABB S203C16 has a 16 amp current rating.
The breaker is designed for installation onto a standard DIN rail inside distribution boards, switchgear assemblies and industrial control panels.
ABB System pro M Compact miniature circuit breakers are trusted worldwide by electrical contractors, switchboard manufacturers and industrial engineers for delivering dependable protection, robust construction and long-term reliability across 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...