2173226 Диф. автоматичний вимикач KZS-2M C 25/0,03 тип A (10kA)

ETI KZS-2M is a differential automatic circuit breaker designed for combined protection of electrical circuits against overload, short circuit, and leakage currents. It is used in distribution boards of residential, commercial, and general-purpose low-voltage networks where the functions of an automatic circuit breaker and a residual current device need to be integrated in one device. This solution helps reduce the number of installed modules in the panel and simplifies wiring. The device is rated for a nominal current of 25 A and has tripping characteristic C, which makes it suitable for circuits with moderate inrush currents. The 1+N pole configuration means one protected pole and a neutral conductor, making the unit suitable for single-phase circuits requiring both overcurrent and residual current protection. The rated residual current is 0.03 A, providing additional protection against electric shock and helping reduce the consequences of insulation faults. With a breaking capacity of 10 kA, the breaker can be applied in networks where high short-circuit currents may occur. This is an important parameter for installations with increased requirements for fault interruption. Type A residual current sensitivity means the device responds not only to sinusoidal alternating leakage currents, but also to pulsating direct residual currents, which may appear when supplying modern household appliances and electronic loads. The breaker operates at a rated frequency of 50/60 Hz and allows conductor connection with a nominal cross-section from 1 to 25 mm². This provides flexibility during installation in different types of electrical switchboards. The device complies with IEC/EN 61009, the standard governing differential circuit breakers with integrated overcurrent protection. Overall, the KZS-2M series model is intended for organized, compact circuit protection in electrical systems where space in the panel and functional combination of protective devices are both important.