Eaton PFIM-40/2/003-MW Residual Current Circuit Breaker 2P 40A 30mA Type AC

The Eaton PFIM-40/2/003-MW is a high-quality 2-pole residual current circuit breaker (RCCB) engineered to provide essential electrical safety in both residential and commercial environments. This device is designed to monitor electrical circuits for earth leakage currents, automatically disconnecting the power supply when a fault is detected to prevent electrical hazards. With a rated current of 40A and a sensitivity of 30mA, it acts as a critical component in modern electrical distribution systems, offering reliable protection for both personnel and connected equipment.

Advantages

This residual current circuit breaker stands out due to its robust construction and adherence to strict safety standards. By providing rapid disconnection in the event of a ground fault, it significantly reduces the risk of electric shock and fire hazards caused by insulation failures. The device is designed for seamless integration into standard distribution boards, ensuring that electrical installations remain compliant with safety regulations while maintaining consistent performance over a long service life.

Suitable for

• Residential electrical installations
• Commercial building distribution boards
• Protection of general-purpose socket outlets
• Lighting circuits requiring earth leakage protection

When it may not be suitable

This device is classified as type AC, which is intended for detecting sinusoidal alternating residual currents. It is not suitable for circuits where DC components or high-frequency pulses are present, such as those connected to certain types of frequency converters or advanced electronic power supplies. In such cases, a type A or type B RCCB would be required.

Key specifications

• Number of poles: 2
• Rated current: 40A
• Rated residual operating current: 30mA
• Type: AC
• Mounting method: DIN rail

How to use

The Eaton PFIM-40/2/003-MW must be installed by a qualified electrician in accordance with local electrical codes and regulations. It is mounted onto a standard DIN rail within a distribution enclosure. The input and output terminals are clearly marked to ensure correct wiring. Once installed, the device should be tested periodically using the integrated test button to verify that the mechanical tripping mechanism is functioning correctly.

What to consider before purchase

• Verify that the rated current of 40A matches your circuit load requirements.
• Ensure the 30mA sensitivity is appropriate for the intended level of protection.
• Confirm that the electrical system does not require type A or B protection for specific electronic loads.
• Check the available space on the DIN rail within your distribution board.

Usage recommendations

Regular testing of the residual current circuit breaker using the test button is recommended at least every six months to ensure the device remains operational and provides the intended level of safety.