Why Choose the ABB 2CDS381103R0157 S301P-K0.5NA Miniature Circuit Breaker?
The ABB 2CDS381103R0157, also known as the S301P-K0.5NA, is a premium miniature circuit breaker (MCB) designed to provide dependable protection against overloads and short circuits in industrial electrical systems. Part of the renowned ABB System pro M compact S300P series, this device delivers exceptional breaking capacity and reliable operation for installations where high fault current protection is required.
Featuring a 0.5 A rated current, Type K tripping characteristic and an impressive 25 kA breaking capacity, this circuit breaker is ideally suited to protecting circuits supplying motors, transformers and inductive loads that experience high inrush currents. Its advanced design provides enhanced operational safety while maintaining excellent selectivity and system reliability.
With a 1P+N pole configuration, DIN rail mounting and fail-safe connection terminals, the S301P-K0.5NA is straightforward to install within industrial control panels, switchboards and distribution boards. Compatibility with ABB System pro M compact accessories further increases installation flexibility.
Key Advantages
- Premium miniature circuit breaker for industrial protection.
- 0.5 A rated current for specialised low-current circuits.
- Type K tripping characteristic suitable for inductive loads and motors.
- 25 kA short-circuit breaking capacity.
- 1P+N pole configuration for phase and neutral protection.
- Integrated trip indicator for rapid fault identification.
- Dual DIN rail release enables quick installation and removal.
- Compatible with ABB System pro M compact accessories.
Key Features
- ABB System pro M compact S300P series.
- S301P-K0.5NA miniature circuit breaker.
- 0.5 A rated current.
- Type K tripping curve.
- 25 kA breaking capacity.
- 1P+N pole configuration.
- 415 V AC rated operational voltage.
- 125 V DC rated voltage.
- DIN rail mounting.
- Fail-safe screw terminals.
Reliable Protection for Motor and Inductive Circuits
The ABB S301P-K0.5NA is specifically designed for circuits with higher starting currents. Its Type K tripping characteristic allows it to tolerate motor inrush currents while still providing rapid disconnection during overloads and short circuits, helping to protect valuable electrical equipment and minimise downtime.
Its high breaking capacity, compact modular design and compatibility with ABB accessories make it an excellent choice for industrial automation, machine building and electrical distribution systems where dependable circuit protection is essential.
Typical Applications
- Industrial motor circuits.
- Control transformers.
- Machine control panels.
- Industrial automation systems.
- Electrical distribution boards.
- OEM machinery.
- Switchgear assemblies.
- Infrastructure installations.
