Overcurrent circuit breaker, 3P, B characteristic, 10A, 6kA, AC | S203-B10 2CDS253001R0105

Reliable protection for electrical installations – ABB S203-B10 circuit breaker

This three-pole circuit breaker with B characteristic is a key element of every safe and efficient electrical installation. It provides effective protection against overloads and short circuits, minimizing the risk of damage and fire. It is an ideal solution for both installers and end-users looking for reliable protection.

The S203-B10 circuit breaker belongs to the popular S200 series from ABB, known for its high quality and compliance with applicable standards. Its compact dimensions (width of 3 modules) facilitate installation in distribution boards, and its solid construction guarantees long-lasting and trouble-free operation.

Characteristics and application

The B characteristic means that the circuit breaker reacts quickly to an increase in short-circuit current, but is more tolerant of short-term current surges during the start-up of devices – which is particularly important when connecting motors or transformers. The rated current of 10A makes it a suitable choice for protecting circuits with medium loads, such as lighting, sockets in residential premises or small electrical appliances. The rated short-circuit breaking capacity of 6kA (at 400V) provides effective protection in the event of a failure.

This circuit breaker finds application in a wide range of installations:

• Home installations: protection of lighting and socket circuits.

• Commercial buildings: protection of circuits in offices, shops and other public utility facilities.

• Industrial installations: protection of circuits powering devices with moderate power consumption.

• Main and sub-distribution boards: as an element of the surge protection system.

Key features and benefits

• High reliability: manufactured by the renowned ABB, guarantees long-lasting and trouble-free operation.

• Wide range of applications: B characteristic and rated current of 10A make it a universal solution for various types of installations.

• Compact dimensions: width of 3 modules facilitates installation even in tight distribution boards.

• Compliance with standards: meets the requirements of EN 60898-1 and EN 60947-2 standards, ensuring safety of use.

• Solid construction: high quality materials provide resistance to mechanical damage and environmental conditions (operating temperature from -25°C to +55°C).

• Conductor cross-sections: allows connection of solid conductors with a cross-section from 0.75 mm² to 35 mm² and stranded conductors from 0.75 mm² to 25 mm².

• Rated short-circuit breaking capacity: Icn 6kA at 400V and Icu 10kA at 400V provide effective protection against the effects of short circuits.

• Rated insulation voltage Ui: 440V AC ensures safe use in various voltage conditions.