Residual current circuit breaker with overcurrent protection KZS-2M AC B6/0.03 002173101

Residual Current Device with Overcurrent Protection KZS-2M AC B6/0.03 is a reliable and proven device designed to protect people and electrical installations. It protects against electric shock, both in case of direct and indirect contact with live parts, and also protects against fire hazard caused by insulation damage. Additionally, it provides protection against the effects of short circuits and overloads in electrical circuits.

This model is particularly useful in TN-S, TN-C-S, TT and IT networks, where the neutral and earth conductors are separated. Its compact design – it occupies only 2 modules – makes it easy to install in distribution boards. This circuit breaker is characterized by a rated current of 6A and a sensitivity to AC differential currents of 0.03A. The B tripping characteristic ensures a quick response to short-circuit current increase, while allowing safe starting of devices with motors that generate momentary current surges. The rated short-circuit breaking capacity is 10 kA, which guarantees effective disconnection of the circuit in the event of a failure.

Construction and functionality

The KZS-2M circuit breaker has been designed with ease of use and safety in mind. It has a "Test" button, allowing regular checking of the correct operation of the residual current device mechanism. The main contact position indicator allows quick identification of the circuit breaker status (ON/OFF). Secured connection terminals minimize the risk of accidental contact with live parts. The terminal design allows the use of insulated busbars both at the top and bottom of the device, which facilitates installation and cable organization. The switching lever is marked "ON/OFF" for intuitive operation and can be sealed in both positions to prevent unauthorized changes to the device status. The possibility of mounting auxiliary contacts PS KZS-2M/4M further expands the functionality of the circuit breaker.

This circuit breaker is characterized by the following parameters: rated current 6A, rated voltage 230V, tripping characteristic B, rated differential current 0.03A, AC sensitivity, short-circuit breaking capacity 10kA, width 2 modules, wire cross-section 1…25 mm², degree of protection IP20 and operating temperature in the range from -25 to 40 °C.

This circuit breaker meets safety standards and is an ideal solution for both professional installers and end-users looking for reliable protection for their electrical installations. Its versatility makes it suitable for use in various types of electrical circuits, providing comprehensive protection against hazards related to electric shock and damage to installations.