Why Choose the ABB S301P-K25 Miniature Circuit Breaker?
The ABB S301P-K25 (2CDS381001R0517) is a high-performance single-pole miniature circuit breaker (MCB) designed to protect industrial electrical installations against overloads and short circuits. Part of the ABB System pro M compact S300P series, it delivers dependable switching performance, high fault-breaking capability and compatibility with established modular accessories.
Featuring a K tripping characteristic, the S301P-K25 is particularly suitable for circuits supplying motors, transformers, solenoids and other inductive equipment with elevated starting currents. The K curve helps accommodate normal inrush current while ensuring effective disconnection when a genuine electrical fault occurs.
With a 25 A rated current, single-pole configuration and 25 kA short-circuit breaking capacity, this compact DIN rail circuit breaker is ideal for industrial control panels, machine-building applications, manufacturing systems and commercial distribution equipment.
Key Advantages
- Reliable overload and short-circuit protection.
- 25 A rated current for higher-load industrial circuits.
- K tripping characteristic accommodates elevated inrush currents.
- Suitable for motors, transformers, solenoids and inductive loads.
- 25 kA breaking capacity for demanding installations.
- Compact single-module design conserves valuable panel space.
- DIN rail mounting supports fast installation and replacement.
Key Features
- ABB System pro M compact S300P series.
- 25 A rated current.
- K tripping characteristic.
- Single-pole (1P) configuration.
- 240 V AC rated operational voltage.
- 25 kA ultimate short-circuit breaking capacity.
- Thermal overload and magnetic short-circuit tripping.
- Fail-safe screw terminal design.
- Standard DIN rail mounting.
- Compact 17.5 mm module width.
Reliable Protection for High-Inrush Industrial Loads
Miniature circuit breakers automatically disconnect a circuit when excessive current is detected. Thermal protection responds to sustained overloads, while magnetic protection provides rapid disconnection during short-circuit conditions. Once the fault has been corrected, the device can be reset without replacing a fuse.
The K tripping characteristic makes the ABB S301P-K25 particularly effective in circuits where motors, transformers and electromagnetic devices create temporary inrush currents during start-up. This helps reduce unwanted tripping while maintaining dependable protection for conductors and connected equipment.
Typical Applications
- Industrial control panels.
- Motor and actuator circuits.
- Transformers and solenoids.
- Machine-building and OEM equipment.
- Manufacturing and process automation systems.
- Commercial and industrial distribution boards.
- Renewable-energy and transportation equipment.
