Overcurrent circuit breaker, 3P, C characteristic, 2A, 10kA, AC | S203M-C2 2CDS273001R0024

Electrical installation protection with ABB S203M-C2 circuit breaker

This three-pole circuit breaker with C characteristic is a reliable protection for your electrical installation. Designed to protect against overloads and short circuits, it ensures safe use and long-term stability. It is a key element in every safe electrical circuit, both in residential and commercial buildings.

The S203M-C2 circuit breaker, with a rated current of 2A and a short-circuit interrupting capacity of up to 10kA (at 400V AC), effectively protects against the effects of sudden current surges. The C characteristic means that the circuit breaker reacts more slowly to short-term overloads, which is particularly important when connecting devices with motors or other elements generating high starting current – e.g. pumps, compressors or air conditioners. This avoids unnecessary tripping of the circuit during normal operation of these devices.

Construction and mounting

The circuit breaker is designed for mounting on a DIN rail, occupying 3 modules in width. Its mounting depth is 69 mm. The solid construction and high quality workmanship guarantee a long service life and reliability even in difficult working conditions (ambient temperature from -25°C to 55°C). The IP20 degree of protection provides protection against finger contact, which increases safety.

Application and compliance with standards

The circuit breaker meets the requirements of overvoltage category III and pollution degree 3, making it suitable for use in most electrical installations. The rated insulation voltage Ui is 440V, and the rated impulse withstand voltage Uimp is 4kV. Compliance with EN 60898 and IEC 60947-2 standards guarantees its safety and efficiency. The possibility of additional equipment allows the circuit breaker to be adapted to the specific needs of a given installation. The cross-section of solid conductors accepted by the circuit breaker is from 0.75 mm² to 35 mm², and stranded conductors from 0.75 mm² to 25 mm².