Why Choose the ABB S203M-K1 Miniature Circuit Breaker?
The ABB S203M-K1 is a high-performance 3-pole miniature circuit breaker (MCB) from the trusted ABB System pro M compact S200M series. Designed to provide dependable protection against overloads and short circuits, this circuit breaker is suitable for demanding industrial, commercial and OEM electrical installations where reliable circuit protection is essential.
Featuring a K tripping characteristic, the S203M-K1 is particularly well suited to protecting circuits with higher inrush currents, including transformers, control circuits and inductive loads. Its current limiting design helps minimise fault energy, improving equipment protection and reducing downtime.
With a 1 A rated current, 3-pole configuration and 10 kA breaking capacity in accordance with IEC/EN 60898-1, the ABB S203M-K1 delivers outstanding performance in industrial control panels, machinery and power distribution systems. It also complies with IEC/EN 60947-2, making it suitable for a wide range of professional applications.
Key Advantages
- Reliable 3-pole miniature circuit breaker for industrial applications.
- 1 A rated current with K tripping characteristic.
- Current limiting technology reduces fault energy.
- 10 kA breaking capacity to IEC/EN 60898-1.
- Suitable for commercial, industrial and OEM machinery.
- Compatible with ABB auxiliary contacts and accessories.
Key Features
- ABB System pro M compact S200M series.
- 3-pole (3P) configuration.
- 1 A rated current.
- K tripping characteristic.
- 10 kA breaking capacity at 230/400 V AC.
- Thermal overload and magnetic short circuit protection.
- DIN rail mounting.
- Current limiting design with mechanical contact position indication.
Reliable Circuit Protection for Industrial Installations
The ABB S203M-K1 combines delayed thermal overload protection with instantaneous magnetic short circuit protection to safeguard electrical circuits and connected equipment. Its current limiting performance helps reduce the damaging effects of fault currents while improving system reliability.
Designed for professional electrical installations, the S200M range is widely specified by panel builders, machine manufacturers and electrical contractors requiring dependable protection and compatibility with ABB modular accessories.
Typical Applications
- Industrial control panels.
- Machine building and OEM equipment.
- Transformer protection.
- Motor control circuits.
- Commercial electrical installations.
- Power distribution systems.
