SZ203-C25 overcurrent circuit breaker, 3P, C characteristic, 25A, 6kA, AC 2CDS253025R0254

Reliable protection of electrical installations – ABB SZ203-C25 circuit breaker

This three-pole circuit breaker from ABB's S203 series is a key element of every safe and reliable electrical installation. Designed to protect against overloads and short circuits, it provides peace of mind for both installers and end-users. It features a high short-circuit breaking capacity of 6kA at AC voltage, guaranteeing effective disconnection of the circuit in the event of a failure.

The SZ203-C25 circuit breaker with a rated current of 25A and characteristic C is ideal for circuits with devices generating inrush currents during start-up – such as motors or transformers. Characteristic C allows for short-term exceeding of the rated current without unnecessary tripping, minimizing the risk of false alarms and downtime.

Design and parameters for professionals

This circuit breaker has been designed for easy mounting on a DIN rail, occupying 3 modules in width. Its installation depth is 69 mm, allowing installation even in limited spaces. Adapted to operate at temperatures from -25°C to 55°C and with a protection degree of IP20, it is resistant to harsh environmental conditions. It accepts solid wire cross-sections from 0.75 mm² to 35 mm² and stranded wires from 0.75 mm² to 25 mm², providing flexibility during connections. The rated insulation voltage Ui is 440V, and the rated impulse withstand voltage Uimp is 4kV. The energy limitation class is 3, and the surge category is III, confirming its high quality and compliance with safety standards.

Universal application and compliance with standards

The SZ203-C25 circuit breaker finds application in a wide range of electrical installations – both in residential, commercial and industrial buildings. The possibility of additional equipment expands its functionality and allows adaptation to the specific needs of a given project. Compliance with EN 60898 standard guarantees its safety and reliable operation. Thanks to this, you can be sure that the installation is protected in accordance with applicable regulations and standards.