Why Choose the ABB S203M-B10 Miniature Circuit Breaker?
The ABB S203M-B10 is a compact and reliable 3-pole miniature circuit breaker (MCB) designed to protect electrical circuits against overloads and short circuits. As part of the ABB System pro M compact S200M series, it delivers dependable circuit protection for residential, commercial and industrial low voltage installations.
This miniature circuit breaker features a B curve tripping characteristic, making it suitable for general purpose electrical circuits where lower inrush currents are expected. Its current limiting design combines delayed thermal tripping for overload protection with electromechanical tripping for short circuit protection.
With a 10 A rated current, 3-pole configuration and 10 kA breaking capacity, the S203M-B10 is ideal for DIN rail mounted distribution boards, control panels and electrical enclosures requiring safe, compact and consistent circuit protection.
Key Advantages
- Compact 3-pole miniature circuit breaker for reliable circuit protection.
- 10 A current rating for low voltage electrical circuits.
- B curve tripping characteristic for general purpose applications.
- 10 kA short circuit breaking capacity at 230 / 400 V AC.
- Thermal overload and electromechanical short circuit protection.
- DIN rail mounting for fast installation in distribution boards and control panels.
Key Features
- ABB System pro M compact S200M series.
- 3-pole (3P) miniature circuit breaker.
- 10 A rated current.
- B curve tripping characteristic.
- 10 kA rated breaking capacity.
- Current limiting design for enhanced circuit protection.
- Complies with IEC/EN 60898-1 and IEC/EN 60947-2.
- Compatible with selected ABB System pro M compact accessories.
Reliable Circuit Protection for Electrical Distribution Systems
Miniature circuit breakers such as the ABB S203M-B10 automatically disconnect the supply when overload or short circuit faults are detected. This helps protect cables, equipment and connected circuits from damage while supporting safer operation across low voltage installations.
The ABB S200M range is widely used by electrical contractors, panel builders and industrial engineers because it combines compact DIN rail mounting, high breaking performance and dependable switching for demanding electrical environments.
Typical Applications
- Commercial electrical distribution boards.
- Industrial control panels.
- Residential three-phase installations.
- Machine building and automation panels.
- Lighting and power distribution circuits.
- OEM electrical equipment and enclosures.
