Eaton PKNM-16/1N/C/003 Residual Current Circuit Breaker with Overcurrent Protection, 2P, 16A, C-Curve, 30mA

The Eaton PKNM-16/1N/C/003 is a high-quality residual current circuit breaker with overcurrent protection (RCBO), designed to provide comprehensive electrical safety in a single compact unit. This 2-pole device combines the functions of a miniature circuit breaker and a residual current device, offering reliable protection against overloads, short circuits, and dangerous leakage currents in residential and commercial electrical systems.

Advantages

This device offers a space-saving solution by integrating two essential safety functions into one modular component, which simplifies installation and reduces the space required in the distribution board. The C-type tripping characteristic ensures stability during standard operation while providing rapid response to fault conditions. With a 30mA sensitivity, it provides effective protection against electric shock, significantly enhancing the safety of users and electrical equipment alike.

Suitable for

• Residential electrical distribution boards
• Commercial office building circuits
• Protection of lighting and socket circuits
• General purpose electrical installations requiring combined protection

When it may not be suitable

This device is not intended for use in high-current industrial applications exceeding its 16A rating. It is also not suitable for circuits requiring different tripping characteristics, such as B or D curves, or for systems where a higher or lower leakage current sensitivity is specifically mandated by local electrical regulations.

Key specifications

• Rated current: 16A
• Number of poles: 2 (1P+N)
• Tripping characteristic: C-curve
• Residual current sensitivity: 30mA
• Function: Combined overcurrent and leakage protection

How to use

The Eaton RCBO should be installed by a qualified electrician in accordance with local electrical codes. It is mounted onto a standard DIN rail within a distribution board. Ensure that the supply cables are securely connected to the input terminals and the load cables to the output terminals, observing the correct polarity for the neutral and phase conductors. Once installed, the device can be manually switched on or off using the front toggle, and the integrated test button should be used periodically to verify the functionality of the residual current protection mechanism.

What to consider before purchase

• Verify that the 16A rated current matches the requirements of your circuit
• Ensure the C-curve characteristic is appropriate for your connected loads
• Check that the 30mA sensitivity meets your local safety standards
• Confirm the device fits your existing DIN rail distribution board layout

Usage recommendations

Regularly test the residual current protection by pressing the test button at least every six months to ensure the mechanism remains operational and provides reliable safety for your electrical installation.