Why Choose the ABB S203M-C40 Miniature Circuit Breaker?
The ABB S203M-C40 is a robust 3-pole miniature circuit breaker (MCB) designed to provide dependable protection against overloads and short circuits in commercial, industrial and OEM electrical installations. As part of the proven ABB System pro M Compact S200M series, it combines compact dimensions, reliable performance and long service life for demanding three-phase electrical systems.
Featuring a Type C tripping characteristic, the S203M-C40 is ideally suited to circuits with moderate inrush currents, including motors, transformers, HVAC equipment, automation systems and industrial machinery. Its current-limiting design reduces fault energy whilst providing dependable overload and short-circuit protection.
With a 40 A rated current, 3-pole configuration and a 10 kA breaking capacity, the ABB S203M-C40 offers professional-grade circuit protection whilst complying with IEC/EN 60898-1 and IEC/EN 60947-2 standards.
Key Advantages
- Reliable 3-pole miniature circuit breaker for industrial and commercial installations.
- 40 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 fast installation.
- Compatible with ABB System pro M Compact modular accessories.
Key Features
- ABB System pro M Compact S200M series.
- 3-pole miniature circuit breaker.
- 40 A rated current.
- Type C tripping curve.
- 10 kA rated short-circuit breaking capacity.
- Thermal overload and magnetic short-circuit protection.
- Current-limiting design for improved system protection.
- DIN rail mounted construction.
Reliable Protection for Three-Phase Electrical Systems
The ABB S203M-C40 automatically disconnects electrical circuits whenever overload or short-circuit conditions occur, helping to protect cables, switchgear and connected equipment from excessive current. Its current-limiting technology reduces the energy released during fault conditions, improving both equipment protection and electrical safety.
Designed for professional installations, the S200M range delivers long mechanical endurance, dependable operation and compatibility with ABB modular accessories. It is widely used in industrial control panels, commercial distribution boards and machine building applications.
Typical Applications
- Industrial control panels.
- Three-phase power distribution.
- Automation and machine control systems.
- Motor and transformer protection.
- HVAC equipment.
- OEM machinery and electrical equipment.
