Why Choose the ABB S203M-C25NA Miniature Circuit Breaker?
The ABB S203M-C25NA is a professional miniature circuit breaker (MCB) designed to provide dependable overload and short-circuit protection in residential, commercial and industrial electrical installations. As part of the proven ABB System pro M compact S200M series, it delivers reliable circuit protection for distribution boards, switchboards and electrical control panels.
This miniature circuit breaker features a C curve tripping characteristic, making it suitable for circuits with moderate inrush currents, including lighting, socket outlets, small motors and general-purpose power distribution. Its current-limiting design helps reduce fault energy and protect cables, equipment and downstream devices.
With a rated current of 25 A, a 3+NP pole configuration and a breaking capacity of up to 10 kA at 230 / 400 V AC, the S203M-C25NA is ideal for three-phase electrical systems requiring neutral switching. Its compact DIN rail design allows fast installation in modular electrical enclosures.
Key Advantages
- Reliable ABB miniature circuit breaker for professional circuit protection.
- 25 A rated current for three-phase electrical circuits.
- C curve tripping characteristic for general-purpose loads with moderate inrush current.
- 3+NP configuration for three-phase systems with neutral switching.
- Current-limiting performance helps protect cables and connected equipment.
- DIN rail mounting for fast installation in distribution boards and control panels.
Key Features
- ABB System pro M compact S200M series.
- 25 A rated current.
- C curve tripping characteristic.
- 3+NP pole configuration.
- Up to 10 kA breaking capacity at 230 / 400 V AC.
- Delayed thermal tripping mechanism for overload protection.
- Electromechanical tripping mechanism for short-circuit protection.
- Compact modular design for DIN rail mounting.
Reliable Protection for Three-Phase Electrical Circuits
Miniature circuit breakers such as the ABB S203M-C25NA automatically disconnect electrical circuits during overload or short-circuit conditions. This helps protect cables, connected equipment and electrical infrastructure while supporting safe and compliant installation design.
The ABB S200M range is engineered for professional applications requiring compact dimensions, dependable operation and high breaking capacity. The C curve characteristic makes this model suitable for general distribution circuits and loads with moderate starting currents.
Typical Applications
- Commercial distribution boards and switchboards.
- Three-phase power distribution circuits.
- Lighting and socket outlet circuits.
- Small motor and inductive load protection.
- Industrial control panels.
- OEM electrical panels and building services installations.
