Residual current circuit breaker with overcurrent protection KZS-2M AC C6/0.03 002173121

Safety and protection in your electrical installation

Residual current circuit breaker with overcurrent protection KZS-2M AC C6/0.03 is a key element of every modern electrical installation, providing comprehensive protection against the effects of short circuits, overloads and electric shock. The device combines the functions of an overcurrent and residual current circuit breaker, allowing for effective protection of electrical circuits and devices connected to the network. This is particularly important in places with an increased risk of electric shock, such as bathrooms, kitchens or utility rooms.

Functionality and application

This circuit breaker is designed for use in TN-S, TN-C-S, TT and IT networks, where the neutral and earth conductors may be separated. Thanks to its C characteristic, the circuit breaker reacts quickly to short-circuit currents, but is more tolerant to short-term current surges during the starting of devices with a motor (e.g. refrigerators, washing machines), which minimizes the risk of unnecessary circuit disconnection. The rated differential current of 0.03 A ensures a quick response in the event of a current leakage to earth, protecting users from electric shock. Its compact size (2 modules) allows for easy mounting in a distribution board.

Key features and benefits

• Comprehensive protection: Protects against short circuits, overloads and electric shock – all in one device.
• C characteristic: Ideal for circuits with devices with high inrush current, minimizes the risk of false tripping.
• High sensitivity: Fast reaction to leakage currents (0.03 A) increases safety.
• Versatility: Can be used in various network types (TN-S, TN-C-S, TT, IT).
• Compact size: Takes up only 2 modules in the distribution board, making installation easier and saving space.
• Rated breaking capacity: 10 kA – ensures effective disconnection of the circuit in the event of a short circuit with high energy.
• Conductor cross-section: Possibility to connect conductors with a cross-section from 1 to 25 mm², providing flexibility in choosing the supply conductors.

Additionally, it is worth mentioning the degree of protection IP20 – it provides protection against contact with live parts by unauthorized persons and against the ingress of solid objects into the device. The circuit breaker is designed to operate at a frequency of 50 Hz and a rated voltage of 230 V AC.