Overcurrent circuit breaker, 3P, C characteristic, 4A, 10kA, AC | S203M-C4 2CDS273001R0044

Reliable protection of electrical installations with S200 series circuit breaker

This three-pole circuit breaker with C characteristic is a key element of every safe electrical installation. It provides effective protection against overloads and short circuits, protecting both devices and people. It is indispensable in residential, commercial and industrial buildings.

The S203M-C4 circuit breaker with a rated current of 4A and a short-circuit breaking capacity of up to 10kA (AC) is a solid solution for circuits requiring medium-speed protection. The C characteristic allows it to react more slowly to short current surges, making it well suited for starting devices with a motor – pumps, compressors or air conditioners. This minimizes the risk of unnecessary tripping of the circuit during normal operation.

Design and parameters for professionals

The circuit breaker occupies 3 modules on a DIN rail, and its installation depth is 69 mm. It is designed to operate in temperatures from -25°C to +55°C, making it suitable for various environmental conditions. The possibility of connecting wires with a cross-section from 0.75 mm² to 35 mm² (solid) or 25 mm² (stranded) provides flexibility during installation. It meets the requirements of overvoltage category III and pollution degree 3, which guarantees its reliability in harsh industrial conditions.

The rated short-circuit breaking capacity (Icn) is 10kA at 400V and 230V, and the Icu capacity according to IEC 60947-2 is as high as 15kA at 400V and 25kA at 230V – this confirms the high level of safety and reliability of the device. The rated insulation voltage Ui is 440V, and the rated impulse withstand voltage Uimp is as high as 4kV. The energy limitation class is 3. The degree of protection IP20 provides basic protection against accidental contact. Power losses are only 5.4W, which translates to energy efficiency of the installation.