ABB S203M-C2NA 3+NP 2 A miniature circuit breaker with C characteristic tripping curve and 10 kA short circuit capacity for residential, commercial and industrial circuit protection.
£204.42
The ABB S203M-C2NA is a high quality 3+NP miniature circuit breaker (MCB) designed for reliable overload and short circuit protection in residential, commercial and industrial electrical installations. As part of the trusted ABB System pro M compact S200M series, it provides dependable low voltage circuit protection in a compact DIN rail mounted format.
This circuit breaker combines delayed thermal overload protection with electromechanical short circuit protection. Its C characteristic tripping curve is suitable for circuits with moderate inrush currents, making it ideal for lighting, control panels, small motors, transformers, automation equipment and general distribution circuits.
With a 2 A rated current, 3+NP configuration and 10 kA short circuit capacity, the ABB S203M-C2NA provides robust protection for three-phase and neutral circuits. The switched neutral design supports safe isolation and reliable operation within distribution boards, control panels and industrial electrical systems.
ABB System pro M compact S200M miniature circuit breakers are current limiting devices designed to protect electrical circuits from overload and short circuit faults. They are widely used across residential, commercial and industrial applications where safe and dependable low voltage protection is required.
The C curve characteristic of the S203M-C2NA provides a balanced trip response for circuits with moderate inrush currents. This makes it suitable for general electrical distribution, control equipment and automation circuits where reliable disconnection is required under fault conditions.
| Current | 2 A |
|---|---|
| Phase | Single Phase |
| Manufacturer | ABB |
| Series | System pro M compact S200M |
| Model | S203M-C2NA |
| Product type | Miniature circuit breaker (MCB) |
| Product ID | 2CDS273103R0024 |
| Rated current | 2 A |
| Number of poles | 3+NP |
| Number of protected poles | 3 |
| Tripping characteristic | C |
| Rated short circuit capacity | 10 kA |
| Rated operational voltage | 400 V AC |
| Rated insulation voltage | 440 V |
| Rated impulse withstand voltage | 4 kV |
| Frequency | 50 / 60 Hz |
| Protection rating | IP20 |
| Mounting type | DIN rail |
| Current limiting class | Class 3 |
| Typical applications | Distribution boards, control panels, automation systems and general low voltage circuits |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
The S203M-C2NA is used to protect low current three-phase and neutral electrical circuits against overloads and short circuits.
The ABB S203M-C2NA has a 2 A rated current.
The C curve is suitable for circuits with moderate inrush currents, making it appropriate for general distribution, control and automation applications.
This model has a 3+NP configuration, providing protection for three phases with a switched neutral pole.
It is typically installed on a DIN rail inside distribution boards, control panels and industrial electrical enclosures.
ABB S200M miniature circuit breakers are trusted by electricians, panel builders and industrial engineers for dependable protection, compact installation and long-term reliability in low voltage electrical systems.
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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...