Overcurrent circuit breaker, 3P, C characteristic, 10A, 10kA, AC | S203M-C10 2CDS273001R0104

Reliable protection for electrical installations – ABB S203M-C10 circuit breaker

This three-pole circuit breaker from ABB with C characteristic is a key element of every safe and reliable electrical installation. Designed to protect against overloads and short circuits, it provides peace of mind for both installers and end users. A rated current of 10A combined with a short-circuit interrupting capacity of 10kA (AC) guarantees effective protection of electrical circuits in residential and commercial buildings.

Functionality and technical parameters

The S203M-C10 circuit breaker is characterized by its versatility and ease of mounting on a DIN rail. A width of 3 modules allows for efficient use of space in the distribution board. The C characteristic means that the circuit breaker reacts more slowly to short-term current surges, which is particularly important when connecting devices with motors or other elements generating high starting currents – this avoids unnecessary tripping of the circuit during normal operation. The rated insulation voltage Ui is 440V, and the rated voltage is 400V, making it suitable for most standard installations. Energy limitation class 3 and surge category III provide an additional level of safety in the event of disturbances in the network.

Application and benefits

This circuit breaker is used in a wide range of electrical installations, from single-family homes to commercial and industrial buildings. Its solid construction and high-quality workmanship guarantee long-lasting and trouble-free operation. The rated short-circuit breaking capacity Icn at 400V and 230V is 10kA, and Icu is 15kA (400V) and 25kA (230V) respectively, providing effective protection against the effects of short circuits. Protection degree IP20 protects against accidental contact, and the possibility of mounting additional equipment allows the circuit breaker to be adapted to the specific needs of a given installation. Wire cross-section from 0.75 mm² to 35 mm² (solid) and from 0.75 mm² to 25 mm² (stranded) ensures compatibility with different types of wires. The ambient temperature in operating conditions from -25°C to +55°C allows it to be used in various environmental conditions.