Residual current circuit breaker with overcurrent protection KZS-2M A C25/0.03 002173226

Reliable protection of electrical circuits

This KZS-2M A C25/0.03 residual current circuit breaker with overcurrent protection is a key element ensuring the safety of the electrical installation and protecting against the effects of electric shock and damage caused by overloads and short circuits. It is a device that will work both in home and commercial installations. Application in TN-S, TN-C-S, TT and IT networks guarantees versatility and compatibility with different types of installations.

Functionality and technical parameters

The circuit breaker combines the functions of an overcurrent circuit breaker and a residual current circuit breaker, providing comprehensive circuit protection. A rated current of 25A and characteristic C provide effective protection against overloads, while allowing the starting of devices with higher starting current – such as motors or transformers – without unnecessary tripping. The rated differential current of 0.03A (sensitivity A) ensures a quick response in the event of a leakage current to earth, minimizing the risk of electric shock. The rated short-circuit breaking capacity at 10kA guarantees safety in the event of a short circuit. Compact dimensions – a width of 2 modules – facilitate mounting in switchboards.

Installation and additional features

The terminal design allows connection of wires with a cross-section from 1 to 25 mm², both solid and stranded. The degree of protection IP20 provides protection against accidental contact. Additionally, the circuit breaker has a test button for regular checking of its functionality and a contact position indicator, making it easier to identify the device status (ON/OFF). The possibility of sealing the switching lever increases safety and prevents unauthorized changes to the settings.