Legrand 411764 interruttore automatico magnetotermico 4

The Legrand 411764 circuit breaker is designed to provide reliable protection for electrical installations in residential and commercial environments. Compact and robust, it safeguards circuits from overloads and short circuits while remaining simple to install and maintain. With a weight of approximately 333 g, this device is compatible with standard DIN-rail mounting and integrates into distribution boards to support everyday electrical safety and continuity of service.

Advantages

This Legrand circuit breaker offers robust mechanical construction and consistent tripping performance to reduce the risk of damage to wiring and connected equipment. It delivers predictable thermal and magnetic protection characteristics, enabling fast response to overloads and short-circuit conditions. The model is engineered for straightforward installation and replacement in common residential and light commercial distribution panels, and its compact dimensions conserve space in the panel while maintaining clear marking for safe operation.

Suitable for

Key specifications

How to use

Install the circuit breaker in the distribution board following the electrical code requirements and the manufacturer's mounting recommendations for DIN-rail devices. Before installation, switch off the main supply and verify absence of voltage. Connect the incoming and outgoing conductors to the appropriate terminals, ensuring tight and secure connections. After mounting, restore power and test the breaker by switching it on and off and by performing routine functional tests to confirm correct tripping behavior under simulated load conditions.

Recommendations

Ensure selection of the correct rated current and characteristic curve for the protected circuit; verify compatibility with the panel's busbar and terminal capacity. Periodically inspect the breaker and connections for signs of wear, overheating, or corrosion, and replace the device if any abnormal behavior or damage is observed. All installation and maintenance should be carried out by a qualified electrician in accordance with local regulations and safety standards.