Overcurrent circuit breaker, 3P, C characteristic, 50A, 10kA, AC | S203M-C50 2CDS273001R0504

Overcurrent circuit breaker from the S200 series is a reliable protection for electrical installations against overloads and short circuits. Designed for use with AC circuits, it offers effective protection in both residential and commercial buildings. The construction based on the proven C characteristic ensures optimal operation in various working conditions.

Protection and functionality

This three-pole (3P) circuit breaker with a rated current of 50A effectively protects circuits against the effects of overloads and short circuits. The rated short-circuit breaking capacity (Icn) is 10kA at 230V and 10kA at 400V, and the Icu capacity reaches up to 25kA at 230V and 15kA at 400V – guaranteeing safety even in the event of high short-circuit currents. The C characteristic allows for short-term overloads, typical for devices with induction motors, without unnecessary tripping of the circuit. This is a useful solution when protecting sockets powering power tools or pumps.

Installation and parameters

The circuit breaker, 3 modules wide, mounted on a DIN rail, takes up little space in the switchgear cabinet. The IP20 degree of protection provides basic protection against touching and the ingress of solid objects. Adapted to work at ambient temperatures from -25°C to 55°C and frequencies of 50-60Hz, it will perform well in various environmental conditions. The possibility of connecting solid conductors with a cross-section from 0.75 mm² to 35 mm² and stranded conductors from 0.75 mm² to 25 mm² provides flexibility during installation. The rated insulation voltage Ui is 440V, and the rated impulse withstand voltage Uimp is as high as 4kV – confirming the high quality of workmanship and safety of use. The energy limitation class is 3 and the surge category is also 3.

For the installer and user

This circuit breaker is not only a protective element, but also an investment in the long-term and safe operation of the electrical installation. Its solid construction and compliance with EN 60898 and IEC 60947-2 standards provide peace of mind for both the installer and the end user. Additional possibility of expansion with accessories allows you to adapt the circuit breaker to the individual needs of a specific installation. Power losses are only 9.75W, which translates into energy savings in the long run.