Overcurrent circuit breaker with residual current device 1+N-pole PKNM-16/1N/C/003-MW 236212

Overcurrent circuit breaker with residual current protection – comprehensive installation protection

This two-pole circuit breaker combines the functions of an overcurrent and residual current device, providing effective protection of electrical circuits against overloads, short circuits and leakage current. The device is designed for mounting in electrical distribution boards in both residential and industrial buildings. Simultaneous disconnection of the neutral pole (N) increases user safety.

Features and application

The PKNM-16/1N/C/003-MW circuit breaker from Eaton is a reliable solution for installations requiring a high level of safety. Characteristic C ensures that the device reacts quickly to short circuits, but is more resistant to short-term current surges that can occur when starting motors or other devices with high power consumption. The rated differential current of 0.03A (30mA) effectively protects against electric shock.

• Versatile application: ideal for protecting lighting circuits, socket outlets and other energy consumers in residential and commercial buildings.
• Two-pole design (1+N): provides full circuit protection, including the neutral pole.
• Characteristic C: suitable for circuits with devices generating surge currents (e.g. motors).
• Rated breaking capacity 10kA: guarantees effective disconnection of the circuit in the event of a short circuit.
• Degree of protection IP20: provides protection against finger contact and solid objects larger than 12mm.
• Mounting on TH35 rail: standard mounting in modular distribution boards facilitates installation and replacement.
• Wire cross-section 1-25 mm²: allows connection of wires of different thicknesses, adapting to the needs of the installation.

Technical parameters and construction

The circuit breaker has been designed with durability and reliability in mind. Energy limitation class 3 and surge category 3 demonstrate its resistance to disturbances in the electrical network. A width of 2 modules allows for efficient use of space in the distribution board. Made of high-quality materials, it ensures long-lasting and trouble-free operation even in difficult environmental conditions (operating temperature from -25°C to 40°C). Rated impulse withstand voltage of 4kV further increases its resistance to overvoltages.

The circuit breaker is characterized by a rated current of 16A, a rated voltage of 230V and a differential current sensitivity of 0.03A (30mA). It has a working frequency of 50Hz and a degree of protection IP20.

The device meets the requirements of EN 61009-1 and EN 61009 standards, which confirms its compliance with European safety standards. The use of AC sensitivity means that the circuit breaker reacts to both sinusoidal alternating currents and pulsating currents, providing comprehensive protection against electrical hazards.