ETI KZS-1M UNI differential circuit breaker B 16/0,03 A type A 6kA (2176024)

This ETI KZS-1M UNI differential circuit breaker is intended for combined protection of electrical circuits against overload, short circuit, and residual current leakage. It is used in residential and small commercial installations where it is necessary to combine the functions of an automatic circuit breaker and a residual current protection device in one modular unit. The device is suitable for distribution boards and for protecting lighting circuits, socket groups, and other single-phase loads. The unit is designed in a 1P+N configuration, meaning it has one protected pole and a neutral conductor. The rated current is 16 A, while the rated residual current is 0.03 A. This sensitivity makes the device suitable for limiting leakage currents at a level commonly used for personal protection and for reducing the risk of fault conditions in the installation. Type A indicates response not only to alternating residual current, but also to pulsating direct residual current, which expands the application range in circuits with electronic loads. The B tripping characteristic is appropriate for circuits with relatively low inrush currents, where fast disconnection is required in the event of a short circuit. The breaking capacity of 6 kA corresponds to typical fault levels in household and administrative power networks. The rated frequency of 50/60 Hz ensures compatibility with widely used electrical supply systems. The product complies with EN/IEC 61009-1. The specified rated conductor cross-section is 110 mm². Overall, the KZS-1M UNI series device combines circuit protection and residual current protection in a single assembly, helping to simplify panel layout and provide a functional solution for low-voltage distribution systems.