2173427 Диф. автоматичний вимикач KZS-2M C 32/0,3 тип A (10kA)

The ETI KZS-2M series residual current circuit breaker with overcurrent protection is intended for the protection of electrical circuits against overload, short circuit, and leakage current. It is used in distribution boards of residential, commercial, and similar electrical installations where one modular device must combine line protection with residual current monitoring. This model is rated at 32 A and has a C tripping characteristic, which makes it suitable for circuits with moderate inrush currents. The 1+N configuration indicates one protected pole plus a neutral conductor, a common arrangement for single-phase networks. The rated residual current of 0.3 A means the device responds when the differential current exceeds the set threshold, helping to prevent unsafe operating conditions in the installation. The breaking capacity of 10 kA allows this device to be used in networks with a higher prospective short-circuit current. The rated frequency range of 50/60 Hz supports operation in AC systems with either standard frequency. Compliance with IEC/EN 61009 confirms that the device meets the requirements applicable to residual current circuit breakers with integral overcurrent protection. The permissible conductor cross-section of 1–25 mm² simplifies cable selection during installation and makes the unit suitable for widely used distribution schemes. Thanks to its modular design, the KZS-2M can be installed in a switchboard alongside other modular protection devices, which is especially practical when space in the enclosure is limited. Overall, this solution combines three protective functions in one device: overload protection, short-circuit protection, and fault current protection, making it a practical option for single-phase circuits in modern electrical distribution systems.