Residual current circuit breaker with overcurrent protection KZS-4M 3P+N AC B32/0.03 002174007

Safety and protection in your electrical installation

The KZS-4M residual current circuit breaker with overcurrent protection is a key element ensuring safety in every electrical circuit. The device combines the functions of an overcurrent and residual current circuit breaker, offering comprehensive protection against electric shock and damage caused by overloads and short circuits. This is particularly important in residential premises, public buildings and industrial environments.

This four-pole (3P+N) circuit breaker, with a rated current of 32A and characteristic B, is designed to operate in AC (alternating current) networks. Its residual current sensitivity is 0.03A, ensuring a quick response in the event of a ground fault current being detected. The use of type AC means that the circuit breaker reacts to residual currents with a sinusoidal waveform – typical of most electrical appliances.

Construction and installation

The KZS-4M circuit breaker occupies 4 modules on a TH35 rail, making it easy to install in a distribution board. The cross-section of the connected multi-wire cable can range from 1 to 35 mm², and the single-wire cable from 1 to 25 mm², ensuring compatibility with different types of cables. Protection of the terminals against accidental contact increases safety during installation and maintenance. Additionally, the ability to seal the lever in the ON/OFF position provides protection against unauthorized operation or disconnection of the device.

Application and benefits

• Versatile application: ideal for protecting lighting circuits, socket outlets and electrical appliances with a power of up to 32A.
• Protection against electric shock: fast reaction to leakage currents minimizes the risk of electric shock.
• Protection against overload and short circuit: characteristic B provides effective protection against damage caused by overloads and short circuits in the circuit.
• Compliance with standards: meets the requirements of EN 61009 standards, guaranteeing safety and reliable operation.
• High quality workmanship: made of durable materials, ensuring long life and reliable operation even in difficult conditions.
• Easy identification of status: Contact position indicator facilitates quick assessment of the circuit breaker status – whether it is on or off.
• Expandability: Compatible with auxiliary contacts PS KZS-2M/4M (available separately), allowing remote monitoring of the circuit breaker status.

The KZS-4M circuit breaker is an investment in the safety of your electrical installation and peace of mind resulting from the certainty of protection against potential hazards. Its solid construction and high quality workmanship guarantee reliable operation for many years to come.