Overcurrent circuit breaker, 3P, characteristic C, 25A, 6kA, AC | S203-C25 2CDS253001R0254

S200 Series Circuit Breakers – Reliable Installation Protection

This three-pole circuit breaker with C characteristic is part of the S200 series from ABB, designed to protect electrical circuits against overloads and short circuits. It provides effective protection in residential, commercial, and industrial installations. The C characteristic allows it to react more slowly to short current surges, making it well-suited for starting devices with motors.

Construction and Parameters

The circuit breaker has a rated current of 25A and a short-circuit interrupting capacity of 6kA at 400V, mounted on a DIN rail, and occupies 3 modules. The device's construction ensures high reliability and durability. The rated insulation voltage Ui is 440V AC, and the rated impulse withstand voltage Uimp is 4kV. The circuit breaker is designed to operate at temperatures from -25°C to +55°C. The ability to connect wires with a cross-section from 0.75 mm² to 35 mm² (solid) or from 0.75 mm² to 25 mm² (stranded) provides installation flexibility.

Application and Compliance with Standards

The S203-C25 circuit breaker meets the requirements of EN 60898-1 and EN 60947-2 standards, guaranteeing its safety and effectiveness. The energy limitation class is 3, and the surge category is III, making it suitable for use in various network conditions. The IP20 degree of protection means protection against accidental contact and the ingress of solid objects larger than 12.5 mm. The device also allows for expansion with additional accessories. The rated short-circuit breaking capacity Icu according to IEC 60947-2 is 10kA at 400V and 20kA at 230V.