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

The Eaton FRCMM-40/4/003-G/A is a high-performance 4-pole residual current circuit breaker (RCCB) engineered to provide robust electrical safety in modern power distribution systems. This device is specifically designed to detect leakage currents and disconnect the circuit instantly to prevent electrical hazards. With its advanced Type G/A technology, it offers a short-time delay that effectively minimizes nuisance tripping caused by transient surges, ensuring continuous operation without compromising safety.

Advantages

This residual current circuit breaker stands out due to its high reliability and precision in fault detection. The integration of Type G/A characteristics allows the device to handle both AC and pulsating DC residual currents, making it highly versatile for various electronic loads. Its robust construction and 10kA short-circuit capacity ensure that it can withstand demanding electrical environments while maintaining long-term operational stability. The short-time delay feature is particularly beneficial in installations where minor voltage fluctuations might otherwise trigger unnecessary power outages.

Suitable for

• Residential electrical distribution boards
• Commercial building power systems
• Installations with electronic equipment prone to transient surges
• Protection of circuits with sensitive electronic components

This device may not be suitable for applications requiring instantaneous tripping without any delay, as the G-type characteristic introduces a slight intentional delay to prevent nuisance tripping. It is also not intended for use in DC-only systems or specialized industrial environments that require Type B protection for high-frequency leakage currents.

Key specifications

• Number of poles: 4
• Rated current: 40A
• Rated residual current: 30mA
• Short-circuit capacity: 10kA
• Type: G/A (short-time delayed, AC and pulsating DC sensitive)

The installation of this circuit breaker should 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 enclosure. Ensure that the supply voltage matches the device specifications and that all terminal connections are tightened to the recommended torque to prevent overheating and ensure proper contact.

What to consider before purchase

• Verify that the 40A rating is sufficient for your circuit load
• Confirm that a 30mA sensitivity meets your safety requirements
• Ensure compatibility with your existing distribution board layout
• Check if the short-time delay is appropriate for your specific equipment

For optimal performance and safety, it is recommended to perform periodic testing of the residual current circuit breaker using the integrated test button to ensure the mechanical and electrical components remain in good working order.