SZ203-B25 overcurrent circuit breaker, 3P, B characteristic, 25A, 6kA, AC 2CDS253025R0255

Reliable protection of electrical installations with the S200 series circuit breaker.

This three-pole circuit breaker with B characteristic is a key element of every safe electrical installation. It provides effective protection against overloads and short circuits, guaranteeing uninterrupted power supply and minimizing the risk of failure. It is a device that will work in both newly built and modernized facilities.

The SZ203-B25 circuit breaker, with a rated current of 25A and a short-circuit breaking capacity of 6kA, is designed to operate in AC networks with a voltage of 400V and a frequency of 50-60Hz. Its compact dimensions – a width of 3 modules and a depth of 69mm – facilitate mounting in distribution boards. Energy limitation class 3 and surge category III confirm its high resistance to interference.

* **B characteristic:** provides a quick response to short circuits, while allowing for short-term overloads, which is important when connecting receivers with motors or transformers. This means that it will not switch off at every short-term current surge, e.g. when starting a pump or air conditioner.

* **Universal mounting:** the possibility of connecting solid conductors with a cross-section from 0.75 to 35 mm² and stranded conductors from 0.75 to 25 mm² provides flexibility in choosing conductors and adapting them to specific installation needs.

* **Wide operating temperature range:** operates reliably at temperatures from -25°C to +55°C, making it suitable for applications both indoors and outdoors (with appropriate housing).

* **Safety confirmed by standards:** meets the requirements of EN 60898 standards, guaranteeing safety of use and compliance with applicable regulations. The rated impulse withstand voltage Uimp is as high as 4kV.

The SZ203-B25 circuit breaker is compatible with the ABB pro M compact system, which allows for easy expansion and modification of the electrical installation. The IP20 degree of protection provides protection against accidental contact. The possibility of using additional equipment allows the functionality of the circuit breaker to be adapted to the specific requirements of a given facility.