Combined switch-disconnector 10 kA, In=32 A, IΔN=0.03 A, characteristic C, Type AC, 1+N pole PKNM PKNM-40/1N/C/003-MW 236334

Safety and reliability in your electrical installation

This combined switch is a key element in protecting electrical circuits. It provides protection against the effects of overloads, short circuits and leakage currents, minimizing the risk of damage and fire. It is a device that will work well both in newly built installations and during the modernization of existing ones.

The switch combines the function of an overcurrent switch (characteristic C) and a residual current device (type AC), which means comprehensive protection for connected devices and people. The rated differential current of 0.03 A ensures a quick response to dangerous leakage currents.

Characteristics and application

Equipped with characteristic C, this switch reacts more slowly to short-term current surges, which is particularly important when connecting devices with motors or other elements generating high starting currents – e.g. pumps, air conditioners or power tools. The rated short-circuit breaking capacity at 10 kA guarantees effective disconnection of the circuit in the event of a serious failure.

The 1+N pole design allows simultaneous protection of the phase and neutral conductor, which increases safety. A width of 2 modules makes it easy to install in standard distribution boards. Designed to operate at temperatures from -25°C to 40°C, it will work in various environmental conditions.

Key features and benefits

• Comprehensive protection: combination of overcurrent and residual current functions in one device.
• Characteristic C: ideal for circuits with devices with high starting currents – avoids unnecessary tripping caused by short-term overloads.
• High short-circuit breaking capacity (10 kA): ensures effective disconnection of the circuit in the event of a failure.
• Type AC: sensitivity to sinusoidal currents – effective protection against dangerous leakage currents.
• Compact dimensions (2 modules): easy to install even in limited space of the distribution board.
• Versatility: possibility to connect solid and stranded conductors with a cross-section from 1 to 25 mm².
• Safety: meets the required standards and has a degree of protection IP20.
• Durability: impact current resistance up to 0.25 kA and energy limitation class 3 ensure long-term and reliable operation of the device.