The ABB S203M-K1 miniature circuit breaker is mounted on a DIN rail and protects motors, transformers, and auxiliary circuits from overloads and short circuits. Its K curve makes it suitable for loads with high inrush currents in residential, commercial, and industrial installations.
It features screw-type safety terminals with a dual chamber and a separate chamber for connecting busbars and cables. Markings and identifiers are laser-printed, and the screws remain captive in the housing.
- Type: Miniature circuit breaker
- Model: S203M-K1
- Number of poles: 3
- Rated current: 1 A
- Trip curve: K
- Supply: AC
- Rated voltage: 400/440 V
- Frequency: 50 Hz
- Short-circuit breaking capacity: 10 kA
- Protection rating: IP20, IP40 with cover
- Operating indicators: On/off, red-green
- Color: Light gray (RAL 7035)
- Standards: IEC/EN 60898-1, IEC/EN 60947-2
Specifications
- Number of Poles
- 3
- Rated Current
- 1 A
- Operating Curve
- Curve K
Power Supply
- AC
- Yes
- DC
- No
Important information
Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.