Why Choose the ABB S203C2 Miniature Circuit Breaker?
The ABB S203C2 is a compact and dependable 3-pole miniature circuit breaker (MCB) designed to protect electrical circuits, cables and connected equipment against overloads and short circuits. Part of the established ABB System pro M compact S200 series, it provides reliable thermal-magnetic protection for commercial, industrial and specialist electrical installations.
Featuring a C curve tripping characteristic, the S203C2 is suitable for circuits with moderate temporary inrush currents. This makes it an effective protection solution for control equipment, small motors, transformers, power supplies, lighting systems and other electrical loads that may draw additional current during start-up.
With a rated current of 2 A, a 3-pole configuration and a rated operational voltage of 400 V AC, the ABB S203C2 is designed for low-current three-phase circuits. Its 6 kA rated short-circuit capacity and compact DIN rail format support straightforward integration into distribution boards, machinery panels and industrial control enclosures.
Key Advantages
- Reliable overload and short-circuit protection for three-phase circuits.
- 2 A rated current suitable for low-current control and equipment applications.
- C curve tripping characteristic accommodates moderate starting currents.
- 3-pole configuration protects and disconnects three conductors simultaneously.
- 6 kA rated breaking capacity according to IEC/EN 60898-1.
- Compact DIN rail design simplifies installation within electrical panels.
Key Features
- ABB System pro M compact S200 series.
- 2 A rated current.
- 3-pole configuration.
- C trip characteristic.
- 400 V AC rated operational voltage.
- 6 kA rated short-circuit capacity.
- Delayed thermal tripping for overload protection.
- Electromagnetic tripping for short-circuit protection.
- Current-limiting operation helps reduce fault energy.
- Red ON and green OFF contact-position indication.
- DIN rail mounting for distribution boards and control panels.
Reliable Protection for Low-Current Three-Phase Circuits
The ABB S203C2 uses two complementary tripping mechanisms to protect electrical installations. Its delayed thermal mechanism responds to sustained overloads, while its electromagnetic mechanism rapidly disconnects the circuit when a short circuit is detected.
The C curve characteristic allows the breaker to tolerate moderate temporary current surges without unnecessary tripping. This makes it suitable for low-current industrial control circuits, small inductive loads and specialist equipment where reliable three-phase protection is required.
Typical Applications
- Industrial control panels.
- Low-current three-phase circuits.
- Small motors and pumps.
- Transformers and power supplies.
- Automation and control equipment.
- Commercial distribution boards.
- OEM machinery and electrical equipment.
