Eaton FRCMM-40/4/003 Residual Current Circuit Breaker, 4P, 40A, 30mA, Type AC

The Eaton FRCMM-40/4/003 is a high-quality 4-pole residual current circuit breaker (RCCB) engineered to provide essential electrical safety in modern distribution systems. This device is designed to detect and interrupt earth leakage currents, effectively preventing hazardous situations in both residential and commercial electrical installations. By monitoring the balance of current in the circuit, it ensures rapid disconnection during fault conditions, thereby protecting users and equipment from potential electrical hazards.

Advantages

This residual current circuit breaker offers robust performance and high reliability for electrical safety applications. Its design ensures consistent operation under standard electrical loads, providing a dependable barrier against leakage currents. The device is built to meet rigorous safety standards, ensuring that it functions correctly when needed to disconnect power during a fault. Its compact 4-pole configuration allows for efficient integration into standard electrical panels, making it a practical choice for various circuit protection requirements.

Suitable for

• Residential electrical distribution boards
• Commercial building power systems
• Protection of circuits against earth leakage
• General electrical safety installations

When it may not be suitable

This device is designed for Type AC applications and may not be suitable for circuits where DC components or pulsating DC currents are present, such as those involving certain types of power electronics or variable frequency drives. In such cases, a different type of residual current device may be required to ensure proper detection and safety.

Key specifications

• Number of poles: 4
• Rated current: 40A
• Rated residual operating current: 30mA
• Type: AC

How to use

The installation of this residual current circuit breaker must be performed by a qualified electrician in accordance with local electrical codes and regulations. The device is mounted onto a standard DIN rail within an electrical distribution board. Connections should be made securely to the input and output terminals, ensuring that the phase and neutral conductors are correctly positioned according to the wiring diagram. After installation, the device should be tested using the integrated test button to verify its mechanical and electrical functionality.

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 installation environment is compatible with Type AC residual current devices.
• Check the available space in your distribution board for a 4-pole device.

Usage recommendations

Regularly test the residual current circuit breaker using the built-in test button at least every six months to ensure the mechanism remains operational and provides reliable protection.