Eaton PFL6-25/1N/B/03 Residual Current Circuit Breaker with Overcurrent Protection, 1P+N, 25A, 0.3A, Type AC

The Eaton PFL6-25/1N/B/03 is a high-quality residual current circuit breaker with overcurrent protection (RCBO), engineered to provide comprehensive electrical safety in a single compact unit. Designed for 1P+N electrical systems, this device integrates both short-circuit and overload protection with earth leakage detection, making it an essential component for modern distribution boards in residential and commercial environments.

Advantages

This RCBO offers a space-saving solution by combining two protective functions into one housing, which simplifies installation and reduces the amount of wiring required in the distribution panel. The device is built to high manufacturing standards, ensuring reliable operation and long-term durability under standard electrical loads. By providing a 0.3A sensitivity threshold, it effectively mitigates risks associated with insulation faults, while the 25A rating ensures it can handle typical branch circuit demands without nuisance tripping.

Suitable for

• Residential electrical distribution boards
• Commercial office lighting and power circuits
• Protection of final circuits against overcurrent and earth leakage
• Upgrading existing fuse boxes to modern safety standards

When it may not be suitable

This device is designed for AC type leakage currents and may not be suitable for circuits containing electronic equipment that produces DC components, such as certain types of variable frequency drives or advanced power electronics. In such cases, a different type of residual current device may be required to ensure proper functionality.

Key specifications

• Rated current: 25A
• Residual current sensitivity: 0.3A
• Poles: 1P+N
• Type: AC
• Function: Combined overcurrent and earth leakage protection

How to use

The device should be installed by a qualified electrician in accordance with local electrical regulations. It is mounted onto a standard DIN rail within a distribution board. Ensure that the supply cables are correctly terminated into the input terminals and that the load cables are connected 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 lever, and the integrated test button should be used periodically to verify the mechanical operation of the leakage protection mechanism.

What to consider before purchase

• Verify that the 25A rating matches the requirements of your specific circuit load.
• Ensure the 0.3A sensitivity is appropriate for the intended application, as this is typically used for fire protection rather than direct contact protection.
• Check that your distribution board has sufficient DIN rail space for a 1P+N RCBO.
• Confirm that the AC type is compatible with the equipment connected to the circuit.

Usage recommendations

Regularly press the test button at least twice a year to ensure the internal mechanism remains functional and that the device trips as expected under simulated fault conditions.