Residual current circuit breaker with overcurrent protection KZS-2M A B25/0.03 002173206

Residual Current Circuit Breaker with Overcurrent Protection – comprehensive protection for your installation

This circuit breaker combines protection against electric shock with protection against overloads and short circuits. It is a key element ensuring safety in every electrical circuit, both in domestic and industrial installations. The device is designed for use in TN-S, TN-C-S, TT and IT networks where the neutral and earth conductors are separated.

Functionality and application

The KZS-2M A B25/0.03 residual current circuit breaker with overcurrent protection protects against the effects of direct and indirect contact with live parts, minimizing the risk of electric shock. Additionally, it protects electrical devices from damage caused by overloads or short circuits. Because it combines two functions – shock protection and overcurrent protection – it simplifies the installation and reduces the number of devices needed.

The circuit breaker design allows for mounting on a TH35 rail, both from above and below, making installation easier in various conditions. The test button allows you to regularly check the correct operation of the device, and the contact position indicator informs you of the current status of the circuit breaker (on/off). The terminals are protected against contact under voltage, which further increases safety.

Technical characteristics and benefits

The KZS-2M A B25/0.03 circuit breaker is characterized by a rated current of 25A and a residual current sensitivity of 0.03A type A – which means it reacts to both AC and pulsating DC currents. The B tripping characteristic ensures a quick response to short-circuit current rise, while allowing for short-term overloads associated with the starting of some devices (e.g. motors). The rated short-circuit breaking capacity is 10 kA, which guarantees effective protection in the event of serious disturbances in the circuit.

• Versatility: Can be used in various network types (TN-S, TN-C-S, TT and IT).
• Safety: Protection against electric shock and damage caused by overloads and short circuits.
• Convenient installation: Can be mounted on a TH35 rail from above or below.
• Status control: Test button and contact position indicator make it easy to check the correct operation of the device.
• Durability: Made of high-quality materials ensures long-lasting and reliable operation.
• Terminal protection: Protected terminals minimize the risk of accidental contact under voltage.

This circuit breaker is an ideal solution for both professional installers looking for a reliable component for building safe electrical installations, and for end-users who care about their own safety and the safety of their loved ones.