2173321 Диф. автоматичний вимикач KZS-2M C 6/0,3 тип AC (10kA)

This ETI KZS-2M differential automatic circuit breaker is designed to protect electrical circuits against overload, short circuit, and leakage currents. It is used in distribution boards of residential, commercial, and general household networks where combined protection of a circuit breaker and residual-current function is required in a single modular device. The unit is rated for a nominal current of 6 A and uses C tripping characteristic, which makes it suitable for circuits with moderate inrush currents. This is especially relevant for final lines supplying lighting, socket circuits, and other single-phase loads where stable operation must be maintained without unnecessary tripping during start-up. The rated residual current of 0.3 A provides leakage-current control and disconnection when the leakage level becomes unsafe. The device has a 1+N pole configuration, meaning one protected pole and a neutral conductor, which corresponds to standard single-phase connection schemes. Type AC indicates operation with alternating residual current. The breaking capacity of 10 kA allows the device to interrupt circuits under high short-circuit currents, expanding its applicability in installations with elevated protection requirements. The rated frequency of 50/60 Hz ensures compatibility with commonly used network standards. Connection is possible with conductors in the 1–25 mm² range, which simplifies selection during panel assembly and wiring. Compliance with IEC/EN 61009 confirms that the device meets the requirements applicable to differential automatic circuit breakers. In practice, this makes the ETI KZS-2M a functional solution for protecting outgoing lines where overcurrent protection and leakage-current detection must work together in one compact modular device.