EATON FRCMM-40/4/003-G/F Residual Current Circuit Breaker 4P 40A 30mA 10kA Type G/F

The EATON FRCMM-40/4/003-G/F is a high-performance 4-pole residual current circuit breaker (RCCB) engineered to provide robust electrical safety and fault protection in demanding environments. This device is specifically designed to monitor electrical circuits and disconnect power instantly when a residual current is detected, thereby preventing electric shock and reducing the risk of fire caused by insulation faults. With its advanced Type G/F technology, it offers enhanced immunity against nuisance tripping while maintaining high sensitivity to both AC and pulsating DC residual currents.

Advantages

This circuit breaker stands out due to its specialized Type G/F design, which ensures reliable operation in modern electrical systems that include power electronics, such as frequency converters or uninterruptible power supplies. The device provides a high level of operational safety by combining a 40A rated current with a 30mA sensitivity threshold, making it highly effective for personal protection. Its robust construction and 10kA short-circuit capacity allow it to withstand significant electrical stress, ensuring long-term durability and consistent performance in both industrial and commercial applications.

Suitable for

• Industrial electrical installations with power electronics
• Commercial buildings requiring high-reliability fault protection
• Systems utilizing frequency converters or variable speed drives
• Protection against electric shock in complex electrical networks

This device may not be suitable for simple residential circuits that do not involve complex power electronics or where a standard Type AC or Type A RCCB is sufficient. It is also not intended for use in environments exceeding its specified voltage or current ratings, and it should not be installed in locations where extreme environmental conditions fall outside the manufacturer's operational guidelines.

Key specifications

• Number of poles: 4
• Rated current: 40A
• Rated residual current sensitivity: 30mA
• Short-circuit capacity: 10kA
• Residual current type: G/F (AC and pulsating DC sensitive)

Installation must be performed by a qualified electrician in accordance with local electrical regulations. The device is designed for mounting on a standard DIN rail within a distribution board. Ensure that all connections are tightened to the specified torque to prevent overheating. Once installed, the integrated test button should be pressed periodically to verify the mechanical functionality of the tripping mechanism.

What to consider before purchase

• Verify that the 40A rating matches your circuit load requirements
• Ensure the 30mA sensitivity is appropriate for your safety application
• Confirm compatibility with your existing distribution board and DIN rail system
• Check if your installation requires Type G/F protection for specific electronic equipment

Regular testing of the residual current circuit breaker using the built-in test button is recommended at least every six months to ensure the device remains in optimal working condition.