Why Choose the ABB S203M-C50 Miniature Circuit Breaker?
The ABB S203M-C50 is a robust 3-pole miniature circuit breaker (MCB) designed to protect electrical circuits against overloads and short circuits in commercial, industrial and OEM installations. As part of the proven ABB System pro M Compact S200M series, it delivers high-performance protection in a compact DIN rail mounted format.
Featuring a Type C tripping characteristic, the S203M-C50 is suitable for circuits with moderate inrush currents, including motors, transformers, HVAC equipment, automation systems and industrial machinery. Its thermal and magnetic trip mechanisms provide dependable overload and short-circuit protection for demanding electrical systems.
With a 50 A rated current, 3-pole configuration and 10 kA breaking capacity, the ABB S203M-C50 is ideal for higher load three-phase circuits where reliable disconnection, ABB build quality and standards-compliant protection are required.
Key Advantages
- Reliable 3-pole miniature circuit breaker for industrial and commercial installations.
- 50 A rated current suitable for higher load three-phase circuits.
- Type C tripping characteristic for moderate inrush current applications.
- 10 kA breaking capacity for dependable short-circuit protection.
- Compact DIN rail mounting for distribution boards and control panels.
- Compatible with ABB System pro M Compact modular accessories.
Key Features
- ABB System pro M Compact S200M series.
- 3-pole miniature circuit breaker.
- 50 A rated current.
- Type C tripping curve.
- 10 kA rated short-circuit breaking capacity.
- Delayed thermal tripping mechanism for overload protection.
- Electromechanical tripping mechanism for short-circuit protection.
- DIN rail mounted design for fast panel installation.
Reliable Protection for Higher Load Three-Phase Circuits
The ABB S203M-C50 automatically disconnects electrical circuits when overload or short-circuit conditions occur. This helps protect cables, switchgear, control equipment and connected devices from damage caused by excessive current.
Its Type C characteristic makes it suitable for equipment that may draw a temporary inrush current during start-up. The 3-pole design provides simultaneous protection and disconnection across three conductors, making it a practical choice for industrial panels, machinery and commercial distribution systems.
Typical Applications
- Industrial control panels.
- Three-phase power distribution circuits.
- Automation and machine control systems.
- Motor and transformer circuits.
- HVAC and building services equipment.
- OEM machinery and electrical equipment.
