Legrand 411766 interruttore automatico 4

The Legrand 411766 circuit breaker is designed to provide dependable overcurrent protection for electrical circuits in residential and commercial installations. With a compact form factor and a moderate weight of 368 g, this device fits standard distribution panels and delivers a high breaking capacity to interrupt fault currents safely. Its construction focuses on consistent performance, ease of installation and compatibility with typical DIN-rail setups used in modern electrical boards.

Advantages

The circuit breaker offers a high breaking capacity that enhances safety by effectively interrupting short-circuit currents. Its compact dimensions and standardized mounting make installation straightforward in most panels. The device is engineered for reliable operation over repeated switching cycles and is suitable for integration with common protective and switching equipment. Its consistent build quality supports long-term electrical system stability.

Suitable for

Key specifications

How to use

Install the circuit breaker into a compatible distribution board following local electrical codes and the panel manufacturer's instructions. Ensure the power is switched off before connecting, and verify correct line and load wiring to the device. Tighten terminal connections to the torque values recommended by the installer documentation and confirm that the breaker is properly seated on the DIN rail. After installation, restore power and test the breaker operation by applying appropriate load conditions and using available test procedures to confirm tripping performance.

Recommendations

Choose the correct current rating and coordinate upstream and downstream protective devices to ensure selective operation. Regularly inspect connections for signs of loosening or corrosion and perform periodic functional testing according to local regulations and maintenance schedules.