Overcurrent circuit breaker, 3P, C characteristic, 1A, 10kA, AC | S203M-C1 2CDS273001R0014

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 for both installers and end-users. Characteristic C makes it particularly well-suited for loads with inrush current, such as motors or transformers – it allows it to react more slowly to short current surges, while ensuring rapid disconnection in the event of more serious failures.

Protection and functionality

This three-pole (3P) circuit breaker with a rated current of 1A is designed to operate in installations with a voltage of 400V. The rated short-circuit breaking capacity (Icn) is 10kA at 400V and 230V, and 15kA (Icu) at 400V and 25kA (Icu) at 230V – this guarantees safety even in the event of high short-circuit currents. Energy limitation class 3 and surge category III confirm its solidity and resistance to interference.

Mounting on a DIN rail is simple and intuitive – the device width is 3 modules (69 mm deep). The possibility of expanding with additional equipment increases its functionality and allows it to be adapted to the specific needs of the installation. Protection degree IP20 provides basic protection against contact and ingress of solid objects.

Construction and application

The circuit breaker is made of high-quality materials, which translates into its durability and reliability. The cross-section of solid wires accepted by the circuit breaker is from 0.75 to 35 mm², and stranded wires from 0.75 to 25 mm². Adapted to operate at temperatures from -25°C to +55°C, it will perform well in various environmental conditions. Power losses are only 4.2W, which translates into energy efficiency of the installation. The rated impulse withstand voltage Uimp is as high as 4kV, which further increases its resistance to overvoltages.