Why Choose the ABB S203M-B25 Miniature Circuit Breaker?
The ABB S203M-B25 is a reliable miniature circuit breaker (MCB) designed to provide dependable overload and short-circuit protection in residential, commercial and industrial electrical installations. Part of the ABB System pro M compact S200M series, it offers high breaking capacity, current limiting performance and compact DIN rail installation for professional distribution systems.
With a 25 A rated current and B tripping characteristic, the S203M-B25 is suitable for circuits with low inrush currents, including lighting, heating loads and general distribution applications. Its 3-pole configuration provides coordinated protection for three-phase circuits.
The ABB S203M-B25 combines a compact modular housing, secure screw terminals and a high 10 kA breaking capacity. This makes it a dependable choice for distribution boards, control panels and electrical systems where safety, reliability and ease of installation are essential.
Key Advantages
- Reliable miniature circuit breaker for three-phase circuit protection.
- 25 A rated current for general distribution circuits.
- B characteristic suitable for low inrush current applications.
- 3-pole configuration for three-phase protection.
- 10 kA short-circuit breaking capacity for dependable fault protection.
- Compact DIN rail mounted design for professional installations.
Key Features
- ABB S200M miniature circuit breaker series.
- 25 A rated current.
- B tripping characteristic.
- 3-pole configuration.
- 10 kA rated short-circuit breaking capacity.
- Thermal magnetic trip mechanism for overload and short-circuit protection.
- Compatible with ABB System pro M compact accessories.
- Compact modular housing with secure screw terminals.
Reliable Protection for Three-Phase Circuits
Miniature circuit breakers such as the ABB S203M-B25 automatically disconnect electrical circuits when overload or short-circuit conditions occur. This helps protect cables, connected equipment and electrical installations from damage while supporting safer operation.
The B characteristic is designed for circuits with relatively low inrush currents, making the S203M-B25 well suited to lighting, heating and general distribution applications. Its 3-pole construction provides coordinated protection across three-phase electrical systems.
Typical Applications
- Three-phase distribution boards.
- Commercial and industrial electrical installations.
- Lighting and heating circuits.
- Industrial control panels.
- Panel building and machine control assemblies.
- Electrical systems requiring 3-pole circuit protection.
