A9Y72740 SCHNEIDER ELECTRIC

The A9Y72740 is an Acti9 Vigi iCG40 add-on residual current device (RCD) from Schneider Electric, designed to enhance electrical safety in various applications. This device is a 3P+N (three-pole plus neutral) configuration, making it suitable for three-phase electrical systems with a neutral conductor. It has a rated current of 40 A, indicating the maximum current it can handle continuously without tripping. The RCD features a sensitivity of 30 mA, meaning it will trip when a leakage current of 30 milliamperes or greater is detected, quickly interrupting the circuit to prevent electrical shock. This device is classified as AC type, which means it is designed to detect and respond to sinusoidal alternating current faults. The Acti9 Vigi iCG40 provides reliable protection against earth fault currents, minimizing the risk of electrical hazards. It is commonly used in residential, commercial, and industrial settings to protect people and equipment from electrical faults. Its add-on design allows for easy integration with existing circuit breakers, providing a cost-effective solution for upgrading electrical protection. By detecting and interrupting dangerous leakage currents, the A9Y72740 contributes to a safer electrical environment.