Differential circuit breaker ETI KZS-2M 2P 10A C type AC 10kA (2173322)

The ETI KZS-2M differential circuit breaker is intended for combined protection of electrical circuits against overload, short circuit, and leakage current. It is used in distribution boards of residential, commercial, and small industrial installations where one device must perform both the functions of an automatic circuit breaker and a residual current protective device. This makes it suitable for protecting individual single-phase lines in lighting circuits, socket groups, and other consumer branches. The device has a rated current of 10 A and a C tripping characteristic. This characteristic is appropriate for circuits with moderate inrush currents, such as lines supplying equipment with small motors or other loads that briefly draw higher starting current. The 1+N pole configuration indicates one phase pole plus neutral, which is a practical solution for single-phase networks. The AC type is designed for sinusoidal alternating residual current, which should be considered when selecting the protection device for a specific circuit. The rated residual current is 0.3 A, allowing the breaker to detect dangerous leakage current and improve the electrical safety of the protected line. The breaking capacity of 10 kA means the device is designed to interrupt high short-circuit currents within the limits required for circuits with increased prospective fault current. The rated frequency of 50 Hz/60 Hz allows use in networks with either standard frequency. For connection, the device supports conductors in the 1 mm² to 25 mm² range, which provides flexibility when integrating it into different wiring schemes according to project requirements. Compliance with IEC/EN 61009 confirms that the product belongs to the category of differential circuit breakers and is manufactured in accordance with the relevant standard for this type of protective apparatus. Overall, this model combines several protective functions in one modular unit, making it a practical choice for circuit protection in modern electrical distribution systems.